GB 12664-2003 General specification for portable X-ray safety inspection equipment
Some standard content:
All technical contents of this standard are mandatory. Foreword
This standard is a continuation of the technical requirements of (B12664-19SC portable X-ray radiation inspection equipment. This standard has many supplements and additions to the original standard. The main changes are: the name of the standard has been greatly adjusted, the terms and definitions of various general specifications of X-ray radiation inspection equipment have been greatly adjusted;
The performance requirements have been greatly adjusted, and the electrical safety requirements of the test parts have been adjusted and expanded: the radiation protection requirements have been adjusted and expanded;
GB12664-2003|| tt||Added the necessary contents in the technical description and instruction manual, and made specific provisions for the contents of radiation protection;
The test methods, inspection rules and appendices were adjusted and supplemented. The implementation of the vehicle marking is from G32554-100. The appendices of this standard are normative appendices, and Appendix 4.3 and Appendix C are informative appendices. This standard was issued by the Ministry of Public Security of the Republic of China. This standard was approved by the National Security Alarm System Standardization Technical Committee (SAC/TC100). This standard is under the research of the Ministry of Public Security. The responsible person for drafting. This standard specifies the chapters, regulations and regulations. This standard was first issued on May 30, 2003. 1 Scope General specification for portable X-ray safety inspection equipment GB12EG4-2003 This standard defines the technical requirements, test method inspection rules and markings, installation, operation and other requirements of portable X-ray safety inspection equipment. This standard is applicable to various portable safety inspection equipment used in on-site safety inspections. 2 Normative references The following clauses in the text become the clauses of the vehicle logo through the approval of this standard. All the amendments (excluding the contents of errata) or revisions after the approval of the standard shall not apply to this standard. However, the parties who have reached an agreement on whether the new versions of these documents can be used shall study and review the following documents on a daily basis, and the latest version shall apply to this standard. B15 Graphic symbol of gas installation GB1912gS07:7 GBT24,1 Environmental test for electric and electronic products Part 2: Test piece method Test A: Estimation Alliance (GB/T2423.12nn1,idt IEc S0068-2-1:1s9:)GB/T2425.2 Electrical products - External test - Part 2, Test piece method GT2423.2
2nn1,idt IEt: So06x 3 2, t5?1)GB/12453 Electrical products - Environmental test - Part 1: Constant humidity and heat test piece method (GB\T2423.1*4.1.e0v IFC 60066-2-3::353GB/T2423.= Electrical products - External test - Part 2, Test piece method GT2423.2
2nn1,idt IEt: So06x 3 2, t5?1)GB/12453 Electrical products - Environmental test - Part 1: Constant humidity and heat test piece method (GB\T2423.1*4.1.e0v IFC 60066-2-3::353GB/T2423.= Electrical products - External test - Part 2, Test point method 2423. 5—1SS5.idt 1EC ((68-2-27:19n) Test E: GB
Test Fc: Total)
GH7T24 Natural.10 Electrical and Electrical Product Environmental Test No. 2 Rate: Test Method (G3:T2-2.i.[oJs95,id:IEecc68-2-:1982) G43 External Protection Level Code (59
GB4.19 Safety Requirements for Electrical Equipment for Laboratory Use (IDT51l 1:19st)
GB593158e confinement limited quality inspection regulations 3117626,-105 integrated compatibility test and training technology electrostatic effect reactance better test: IF: 11215:
CB/17626.1 electric ball and customer benefit test plate judgment time output special motor test Ridge (: ct1E$1000 4 5:1sS5
GH5/T1Y626,a—U
1Neutral capacity
Test technology
Langtong: Impact test i!1TF123)5.19951
3 Terms and definitions
The following terms and definitions apply to this standard: 3.1
Portable X-ray security inspection equipment portableX-ray security inspection equipment A device that uses X-rays to perform security inspections, which can be divided into units or units to provide thermal insulation for personnel. Note: The manufacturer of this product has no name or explanation, and can be used alone: The equipment can be used alone: The equipment can be used alone or in a single process. The equipment can be used as a component or a part.
Gn12664—2003
T position measurement operationpnxition
According to the requirements of the equipment, the working personnel should be in a position different from the expected position of the radiation. Technical requirements
4.1 Appearance
) The surface of the product should be smooth and clean, and there should be no defects such as scratches, falling, and collapse! There should be no nail heads, other edges or sharp magnets that may cause scratches on the skin and may be hooked and pulled on clothing. 4.2 Mechanical structure
4.2.1 The chassis
should have sufficient mechanical strength and rigidity, and the upper and lower parts can be moved horizontally without lifting. 4.2.2 The degree of protection of the enclosure
should meet the requirements of GB12061993, and not lower than the requirements of GB11204. 4.2.3 The connection between the hand-held unit and the tool and the work body should be complete and firm, and should not be cracked, deformed or have other obvious failure signs. 4.2. The casters
should have sufficient flexibility and differential flexibility, and should be consistent with the main connection of the station equipment. 4.2.5 Connection of electrical energy
a! The electrical effect and disconnection should be designed to facilitate three-way operation. 1) The plug-in connectors that are not used for the purpose should not be replaced. 2) The compensation and the compensation of the open and closed should be balanced and the compensation should be effective. The tension of the N should be able to be obtained. 4.2.6 Sealing components The sealing components of the power source box should maintain good performance and no connection phenomenon. 4.3 Operation control 4.3.1 Radiation control device The power source and the control device must be installed in the power source field. The distance between the power source and the control device should not be less than 2 meters. If the delay control device is used, it should be visible to people at a distance of 10 meters. 4.3.2 Correct operation of the control device: The switches and connections should be flexible to operate, with a clear feel and a narrow function. b If equipped with load control function: the control should be able to reach at least 1 DC power supply of the equipment. The power supply should exceed 10% of the required control judgment to prevent the automatic recognition of the non-working state. 4.3.3 Remote control
If the network is selected for operation, the corresponding internal control program library should be provided. When the remote control is interrupted due to release, the equipment should be able to automatically shut down or reactivate the system: 4.4 Marking
) When the power supply is specified, the rated voltage of the self-travel should be marked, or the model and connection of the battery used should be marked. 1.) The relevant passages, functions of installation, various cables connected on site and installation of spare parts should be clearly marked. 2.) The rated value of the circuit breaker should be clearly visible near the replaceable terminal. 3.) The installation or steps that may cause danger should be marked at the location of the instrument. 4.) If the radiation output of the product may have a harmful effect on items such as photosensitive film, it should be noted and stated in the instructions for use. 5.) Use shape table number Meet the requirements of R479%1-91;) If text is required, it should be marked in Chinese: CB12664-2CD3
X) The manufacturer shall follow the cleaning method specified by the manufacturer, and the text, letters and logos shall be kept clear and reliable.4.5 Power supply range
For equipment powered by batteries, the battery used is 1S8V--242V.47.5Hz--52.[1z. Battery-powered equipment should use rechargeable batteries, which can monitor the power supply automatically. When the battery is fully charged or the battery is discharged, the workstation should be equipped with a dedicated staff member. Units or components with special requirements for the power supply: The product label should clearly indicate that the power supply is in phase. 4.6 Electrical safety
4.6.1 Grounding
When using a power supply with a variable current, the power supply line and connecting parts should have a protective earthing and use single-phase (phase, neutral, other) lines. The voltage resistance between the protective earthing and the protective earthing of all metal parts should be greater than U【. 4.6.2 Wire resistance
When AC power is used, the insulation resistance between accessible metal parts and the power supply terminal shall be; not less than M under normal circumstances, and not less than 22.
4.6.3 Adjustable current
When AC power is used, the current between accessible parts and the power supply terminal shall be: sinusoidal version shall not exceed 3.1A effective value, non-sinusoidal wave shall not pass.7mA peak value or 2mA white current value, 4.6.4 Dielectric strength
When AC power is used, the dielectric strength between the protective earthing and the power supply terminal shall be lower than the test voltage specified in Table D4 of H473.1199 (300V), without any cross-talk or mutual tension. 4.6.5 Electrical spacing and creepage distances
When AC power is supplied, the electrical spacing and creepage distances connected to the power supply network shall be: not less than = B-703.1-10:3 × 300V thermal insulation,
4.7 Radiation protection requirements
4.7, 1) The distance from the radiation source to the radiation source shall not exceed 50mm. The kinetic energy release rate of the radiation source shall not exceed 1?ry/juice: The standard kinetic energy release refers to the radiation intensity of the room, not the exposure amount, and the average kinetic energy release rate of the gas product shall be: Gy! , determined and exposed (kg or Gy-115R4.7.2 scattered radiation
) radiation rate, [the working position at the air ratio should not exceed 0.6mh) if the working position radiation exceeds the above limit, the product should be determined to ensure that the radiation intensity of the weak protection measures is lower than the upper limit c × radiation actual push radiation secretion reference point, the product standard can be analyzed at each working position of the scattered radiation distribution map or each point of the scattered radiation maximum value, in order to facilitate the calculation of " The operator can absorb the most of the chemical. 47.3 Relative radiation field limitation
The radiation limit system (such as beam limiter, etc.) should be installed on the radiation window to make the radiation intensity outside the vehicle significantly reduced: 4.8 Performance requirements
4.8.1 Function
Under normal working conditions, it should be able to complete the various functions specified in the product standard. 4.8.2 Radiation output
The product standard should specify the output intensity of the X source in the equipment. For the production of continuous X source, the gas release or energy 3
CB 12664—20C3
Rate is expressed as the total kinetic energy of a radiographic source. The unit is mG/impact <or the total amount
4.8.3 Penetration ability
The penetration ability of the selected equipment can be clearly observed by the user. The unit is expressed as the original material of the product. The composition of the material shall comply with the requirements of the appendix. 4.4 Spatial resolution
The product standard shall specify the spatial resolution of the equipment. The spatial resolution under air background recording can be expressed in any of the following ways: a) The number of magnified lines that can be clearly distinguished on an X-ray image display by the number of line pairs (this standard recommends the use of this method. b) The number of magnified lines that can be clearly distinguished on an X-ray image display by the number of lines of other materials composed of aluminum and other materials. The image display can clearly show the amount of the single solid copper wire diameter (mm) 4.3 Working status indication
) There is no obvious indication of the oil delivery rate, generally a yellow indicator light is preferred, b! X should have a clear indication when the other end is emitting oil, and one cavity should be a red indicator light - and the display time should not be shorter than 0.5s, :) Equipment failure will have an immediate indication, :) Equipment using battery as a power source should have a battery status indication (such as: normal, light undervoltage fault, etc.). e This Cc[x under the light of most light and 251 dim light, can clearly distinguish various indications. 4.10 Flow point adaptability
4.10.1 Working environment
Room type: At least work in a temperature lower limit + temperature upper limit + temperature environment, and can meet 4.8. 1.10.2 Storage environment
The equipment should be stored under the environmental conditions of -1°C, -0°C and 95% humidity without causing damage to the mechanical and electrical performance of the equipment.
4.10.3 Mechanical stress
It should be able to withstand the vibration and impact caused by installation, use, replacement and transportation by vehicles without causing damage to the mechanical and electrical performance of the equipment.
4.11 Electromagnetic compatibility
4.11.! Electrostatic discharge
During normal operation, the device should be able to work normally when subjected to a certain intensity of effective electromagnetic interference. 4.11.2. Radio frequency electromagnetic interference
In a normal radio frequency electromagnetic interference environment, 4.11.3 Surge (shock) interference
When the device is subjected to external surge interference, the performance of the device may be reduced. After that, the device can be tested.
5 Test method
5.1 Normal test conditions
Except for the special abnormalities, the rest The test should be carried out under the following conditions: Humidity 15~3°C:
Temperature: 26~0°C:
:launkPa:
The radiation source is close enough to affect the test result. G2664-2033
The beam exit window is half of the range of 210°. There should be no scattered points within the test window. The equipment is within the range specified in the product standard. 5.2 Appearance inspection
Daily inspection includes appearance, which should meet the requirements of 1. 5.3 Mechanical structure test
5.3. 1. The chassis shall be tested in working condition and its specifications shall be relaxed, and then the external impact test shall be carried out according to X, 1 and X, 2 of GH4758.1.134 (excluding the surface of the product and the indicator light), which shall meet the requirements of 1.2.1. This test should be carried out after the mechanical stress test. 5.3.2 The enclosure protection shall be tested according to the external light protection of 4203195, which shall meet the requirements of +.2 limit 5.3.3 The external light protection test shall be carried out according to GP 1793.11SS: 7.:, which shall meet the requirements of 1.2.3. 5.3.4 5.3.5 Cable connection
Cable head: Pull the cable 5mm with a tensile force and then check the connection between the cable and the switch: The connection and the connection between the system and the equipment shall meet the requirements of 4.2.5. 5.3.6 Sealing components
Inspection or test according to the product standard, shall meet the requirements of 4,2. 5.4 Operation control test
5. 4. 1 Control device
Inspection and measurement according to the product standard (see 5,X,%), shall meet the requirements of 4,3. 5.4.2 Control device operation
Inspection and operation according to the product standard and the card, shall meet the requirements of 4.3.2, 5. 4.3 Remote control
Generally speaking, the product standard and the instruction manual shall be followed in accordance with the requirements of 4.3.3. 5.5 Label inspection
) Visually check whether the various identifications are verified according to the requirements of 4.4. The design components are first cleaned with soft water (especially the water station specified in the F station) and then wiped with 15% of the internal label. The label should still be clearly identifiable after wiping, and the label of the station should not be removed or close. 5.6 Applicable test for electricity
Equipment powered by AC power should be tested in the following way. Battery power supply is also used as the method for product certification. The product label is not prohibited otherwise.
) The reversible power supply rate H is increased to H under the medium voltage of the equipment, and the power is maintained for at least 5 minutes for normal state test. The requirements of 1 and 3 should be met. Place the power outlet of the regulating box at the equipment's lower and upper power levels for at least 3 minutes, and then conduct the safety test. The test should be carried out under the requirements of 1.5. This test should be carried out under the working temperature and lower limit environmental conditions. 5.7 Electrical safety test 5.7.1 Grounding The protective grounding line and the measuring current between the protective grounding terminal and the protective grounding terminal should meet the requirements of GH 12664-20C3 4.6, and 5.7.2 Insulation resistance
The equipment is connected to the dry position at the core, and the power supply is disconnected and connected to the power supply grid. A 50V megohmmeter is used to measure the insulation resistance under normal test conditions and the constant humidity and heat conditions specified in Table 1. The insulation resistance shall meet the requirements of 4.6.2 and 5.7.3 respectively. The insulation resistance shall be measured according to the requirements of Appendix A of GR4793-1. The requirements of 4.6.3 shall not be exceeded. 5.7.1 Dielectric strength
shall be carried out in accordance with the requirements of Section 8 of B4793-1. Before the test, the specified inspection shall be carried out for moisture proof treatment. Appropriate consistency inspection is carried out before the test. The sampling plan is specified in the production. A number of samples or prototypes are selected from the batch products for pre-treatment. The test voltage is not used (Table DM4798-1395). 10uV is applied at a sufficient voltage point and the duration is equal to min +. It should meet the requirements of 4.6.4. 5.7.5 Electrical hidden distance and induction distance are in accordance with the requirements of 6.7 of G4753. The distance is checked by daylight and retrograde measurement. According to the performance of the relevant insulation materials used in the equipment, the CTI index can be set to about 5<. The test results should meet the requirements of 1.5.5. 5.8 Radiation protection test 5. A. 1. The X-ray beam exit window shall be made of a block of material with a thickness of not less than 1 layer (see Appendix B) that meets the requirements of Appendix VIII. Then the radiometer shall measure the kinetic energy of the air ratio according to the following method: The X-ray source shall be placed under the most commercial working current and the recording current shall be recorded at the exit of the current. At least 5 points shall be selected for measurement with a sphere of 1m around the exit window of the X-ray beam as the center. The radiation uniformity of each point shall meet the requirements of 1.7.1.
! Five points shall be selected from the outer surface of the X-ray source at a distance of 1 mm to 4.71. The radiation uniformity of the points shall be calculated according to the change of the radiation uniformity of the pulsed X-ray source, the corresponding parameters of the pulse meter and the repetition frequency shall be converted into 1 hour of air ratio kinetic energy. 5.8.2 Stray radiation
shall be measured by the following method: a) The equipment should be in a strictly controlled working state with the source of radiation in the air or in the test field: b) Place a marked scatterer (see attached image) close to the receiving surface to ensure that the object to be tested has no scattering of the rays: b) Set the X-ray voltage at the highest voltage and the corresponding maximum beam position at that single voltage: c) Select h point on the workpiece and start measuring with specified anti-radiation facilities. The stray radiation position at each point shall meet the requirements of 4.7.2.
[According to the effective radiation loss provided by the product, any point shall be selected for measurement. No point should be too close. For pulsed X-ray sources, the potential number corresponding to the pulse shall be known. The frequency conversion of the inductive force shall be 1% of the air light kinetic energy. 5.8.3 Radiation field limitation
Use the following method: Install the radiation agent only in the center of the radiation field. The measured values near the outside of the radiation field shall differ by at least 5%. After that, the equipment is placed in place according to the working state and the beam limiting system is installed according to the relevant regulations of the product: 1. At the intersection of the X-ray image receiving plane and the beam axis, measure the kinetic energy of the air outside the center of the radiation field: 》At any 3 points on the X-ray image receiving plane, 1. 0. Outside the center of the image or receiving plane, measure the kinetic energy of the most important point outside the edge of the radiation. 5.9 Performance test
5.9.1 Power test
Under the specified conditions, the product shall be operated according to the product manual, and the requirements of 1, 1 shall be met. 5.9.2 Radiated output
GB12664—2003
The radiated output of the product shall be tested under the test conditions and test conditions specified in the product standard, and the results shall meet the requirements specified therein:
5.9.3 Penetration capability
The test conditions and test conditions specified in the product standard shall be met, and the results shall meet the requirements specified therein. 5.9.4 Spatial resolution
The test conditions and test conditions specified in the product standard shall be met, and the results shall meet the requirements specified therein. ) The working status indication inspection and frequency inspection of the equipment shall comply with the relevant requirements of 4. Only when there is no direct sunlight and high-intensity light, the equipment shall be brushed with the ambient light intensity of Q0C1x to 600[x] to reduce the illumination to more than 500[x] under the normal working mode. The working indication shall comply with the relevant requirements of 5.11 Environmental suitability test
5,11.1 Working environment test
T Working environment test rules Table 1.
6,11.2 Storage environment test
Some storage environment tests are shown in the table,
5.11.3 Mechanical stress test
Mechanical stress test is shown in the table.
Table 1 Working temperature and temperature test
Major test or test
Constant heat
Strict shear, etc.
Not less than the lower limit of the working group, and the duration is not close to two hours per hour, T Temperature process, village system time
working product medical 3
idle 33
clean time: 4
test method
according to H/T2423.1 test number A5
transfer to CE『2423.2, based on the equipment working +
surface quality urgency, sample test or practice
station door 2123, 3 test route C is allowed
Note: performance test beyond the normal environmental conditions, the test steps are required, Table 2 Storage temperature test Energy conservation High-pass storage The item shall be subjected to the most severe condition at the most severe temperature, and the storage temperature shall be kept at a constant temperature for 16 hours according to H/T 2123.1 method A5 and P/T 2123.2 test Bb Table 3 Mechanical stress test Sine wave 1H~F, Hz, frequency [(el/:nit, .1mm or n/3 period to the part 15n9, half positive this lack, the end time is n, A
Each special test shall be carried out before the start of the active port
formal test and each intermediate test shall be carried out before the end of the test
4.*.4.5.4.5
4.3.2, reduced test station after the end of the test. Inspection 4.1,
4.6.4,1.5
and the source
formal test shall be restored for at least 2 days after the end of the test, and after the combustion
standard 4.1.1.3.2 a),4.8
or verification
GB/T 2123. -0
After each page is finished: Applicability
GM\T24x.5
1. 1.4.2. -.4. 8
Conditions: For the display screen that does not have the same position as the test equipment, the thickness of the display screen is not more than 5m, 5. 12
Electromagnetic capacitive test
GH12664—2003
5.12.1 Electrostatic discharge interference test
According to 3/T17626.21998, the electrostatic discharge interference test level should be lower than level 3. The test results should meet the requirements of 1.11.1.
5.12.2 Radio frequency electromagnetic field radiation immunity test According to GR/T17E2%, 3-:338, the radio frequency electromagnetic field auxiliary radiation immunity test or the whole test shall be carried out. The test level shall not be lower than level 2, and the test results shall meet the requirements of 4.1.2.
5.12.3 Leakage (impact> immunity test
According to (B/T17626.5399, the wave injection (impact) immunity test shall be carried out. The test level shall not be lower than level 2, and the test results shall meet the requirements of 11.3.
6 Rubber inspection rules
6.1 Inspection type and grouping
B/T15%-1996. Inspection is divided into two types: identification inspection and quality consistency inspection. According to the product performance, the inspection items are divided into the following six inspection groups. 6.2 Inspection items
No inspection The inspection items under the inspection type shall be carried out in accordance with the provisions of Certificate 4. 6.3 Determination and classification of defects
Defects that cause serious damage to personnel or equipment that cannot be removed from the equipment for technical reasons. Severe defects: defects that exceed the specified limit, defects that greatly affect the efficiency of some parts or hinder the normal operation of the equipment. Minor defects: defects that are not serious or can be made to maintain basic functions through simple adjustments. 6.4 Sampling and qualification determination of inspection products
Sampling and qualification determination shall be carried out in accordance with the relevant requirements of (B/16593-1996) Section 6. AQ: The value shall not be greater than 6.5 Table 4 Inspection grouping and control test items Date
Quality test abbreviation
Nature test function
External bright 1 sharing plan
Review transmission white mirror
Control continent practice snow condensation rise
Far science
Electronic list
Thank you telephone
Technical safety request
. a. e
4, 3,
Test film method
Appraisal laboratory
Item quality and effectiveness
Quality inspection certificate
Defect classification
Fatal" heavy and light work
Quality inspection group
Test itemsbzxz.net
Dielectric pass
Good six questions and dangerous electrical conversion
Other lubrication axis radiation
Capital stock special
Mysterious to the production
Work status indication
Environmental love delay
Electromagnetic incompatibility
Sign and standard frame
Land expansion glass document
Special infectious risk
Technical correct request
. 1. 3
Table 4)
Inspection station
Note: To indicate the items that have been inspected, to indicate the items that need to be inspected when necessary, signs, labels, packaging and storage
Marks and labels
Monitor whether to inspect
#B12664—2003
Iron sauce and fen
Stand in the lead to whether the manufacturer's name or trademark, equipment model, name, factory load and branch standards, etc., the government shall issue inspection certificates and quality assurance. : Components and parts should be issued, and the selected The design and documents shall be detailed as required. The outer packaging shall be printed with the station transportation instructions and the relevant symbols in accordance with B regulations. Strictly use the Chinese markings for the instructions. 7.2 Packaging
Products shall be equipped with rubber products that are moisture-proof, pressure-resistant, and moisture-proof. Ensure that normal equipment, travel and maintenance will not cause damage to the equipment parts.
7.3 Long-term storage
If the equipment is allowed to be stored for a long time, it should be stored in an environment suitable for long-term storage. Regularly promote the relevant requirements and check the time limit. The new items shall be inspected and the new items shall be inspected within a specified time limit. . E Technical Documents
8.1 General
The accompanying equipment shall provide the most detailed user documents such as technical instructions, user instructions and service information in Chinese. In addition, the relevant contents of operation and safety shall be given in Chinese: CB12664—2003
2 Technical instructions
shall include the following contents:
: common voltage range, power supply frequency range, power consumption of the whole machine, 1. environmental protection environment, storage environment, dimensions and structure of the parts; correct steps and precautions to ensure safe use Matters to be paid attention to: soil change function and its technical indicators!
Instructions on the technical spraying and calibration capabilities,
Daily.3 Instructions for use
Should include the following contents:
System installation selection method
Practical placement position to change the electrical compensation environment of the system cable connection between each unit:
Operation selection and its knowledge to make it more:
Information
Instructions on the connection with components or other equipment: Correct operation plan and methods to eliminate accidents as much as possible to avoid the impact of light damage on the detection items! 1. H belt maintenance, inspection, protection, cleaning and routine modification; 2. Replacement of parts list:
Product special life belt reporting and handling time to avoid legal and legal requirements 8.4 Service measures
Should include the following contents:
Manufacturing! Detailed name of the equipment and the quality assurance period; according to the technical service and equipment maintenance department, the equipment age information; 8.5 Radiation safety content
requires that all personnel must receive radiation safety training and receive radiation protection training: a medical safety record, and identify and evaluate the radiation when using the equipment. Give the frequency distribution map and position values of the radiation to ensure the safe operation of relevant personnel! The products are all auxiliary radiation increase and under normal load, such as the effect of the product layer declaration report on the natural light bite rise and other items have an impact on the palace want to know: financial design requirements for the relevant power supply level management method: 10
Appendix A
(Informative record)
Composition of materials related to X-ray detection CB12654-2003
In this standard, the thickness of the potential or diamond is used to express the compensation of the equivalent layer, which is suitable for the reference material of the listed radiation: the purity is not less than 99%. The lead with a purity of 11.g/c is Appendix
(Normative Appendix)
Half-value layer of radiation protection materials
Table B1 gives the approximate half-value layer of lead in wide beam radiation protection materials. Table B.1 Half-value layer thickness of aluminum
Source
Note: The effective value layer in the middle is obtained by linear method. C
(Appendix
Standard scattering body
Standard teaching for the following simulation body Liu × special scattering allowance, the source of the need × needle line and the different test objects. The specific material and the size of the body are also related to the standard. The standard body is defined as:
Material: pine wood root, moisture content 2 plus, surface and smooth, sub-band or this treatment, the material size is not allowed to be pressed around the material: thickness m, length and width size 1 and the image plane length of the measured equipment when the length and width of the body size difference is 20:3 Instructions for use
Should include the following contents:
System installation method
Real location to change the electrical environment of the system, the cable connection between each unit:
Operation selection and its knowledge:
Instructions for connection with components or other equipment: Correct operation plan and methods to eliminate accidents, as far as possible to avoid the impact of light damage on the detected items! 1. Belt maintenance, inspection, protection, cleaning and routine modification; 2. Replacement of parts list:
Product special repair belt reporting, quantity avoidance of legal and legal requirements 8.4 Service measures
Should include the following contents:
Manufacturing! Detailed name of the equipment and the quality assurance period; according to the technical service and equipment maintenance department, the equipment age information; 8.5 Radiation safety content
requires that all personnel must receive radiation safety training and receive radiation protection training: a medical safety record, and identify and evaluate the radiation when using the equipment. Give the frequency distribution diagram and position values to ensure the safe operation of relevant personnel! The products are all auxiliary radiation increase and under normal load, such as the effect of the product layer declaration report on the natural light bite rise and other items have an impact on the palace want to know: financial design requirements for the relevant power supply level management method: 10
Appendix A
(Informative record)
Composition of materials related to X-ray detection CB12654-2003
In this standard, the thickness of the potential or diamond is used to express the compensation of the equivalent layer, which is suitable for the reference material of the listed radiation: the purity is not less than 99%. The lead with a purity of 11.g/c is Appendix
(Normative Appendix)
Half-value layer of radiation protection materials
Table B1 gives the approximate half-value layer of lead in wide beam radiation protection materials. Table B.1 Half-value layer thickness of aluminum
Source
Note: The effective value layer in the middle is obtained by linear method. C
(Appendix
Standard scattering body
Standard teaching for the following simulation body Liu × special scattering allowance, the source of the need × needle line and the different test objects. The specific material and the size of the body are also related to the standard. The standard body is defined as:
Material: pine wood root, moisture content 2 plus, surface and smooth, sub-band or this treatment, the material size is not allowed to be pressed around the material: thickness m, length and width size 1 and the image plane length of the measured equipment when the length and width of the body size difference is 20:3 Instructions for use
Should include the following contents:
System installation method
Real location to change the electrical environment of the system, the cable connection between each unit:
Operation selection and its knowledge:
Instructions for connection with components or other equipment: Correct operation plan and methods to eliminate accidents, as far as possible to avoid the impact of light damage on the detected items! 1. Belt maintenance, inspection, protection, cleaning and routine modification; 2. Replacement of parts list:
Product special repair belt reporting, quantity avoidance of legal and legal requirements 8.4 Service measures
Should include the following contents:
Manufacturing! Detailed name of the equipment and the quality assurance period; according to the technical service and equipment maintenance department, the equipment age information; 8.5 Radiation safety content
requires that all personnel must receive radiation safety training and receive radiation protection training: a medical safety record, and identify and evaluate the radiation when using the equipment. Give the frequency distribution map and position values of the radiation to ensure the safe operation of relevant personnel! The products are all auxiliary radiation increase and under normal load, such as the effect of the product layer declaration report on the natural light bite rise and other items have an impact on the palace want to know: financial design requirements for the relevant power supply level management method: 10
Appendix A
(Informative record)
Composition of materials related to X-ray detection CB12654-2003
In this standard, the thickness of the potential or diamond is used to express the compensation of the equivalent layer, which is suitable for the reference material of the listed radiation: the purity is not less than 99%. The lead with a purity of 11.g/c is Appendix
(Normative Appendix)
Half-value layer of radiation protection materials
Table B1 gives the approximate half-value layer of lead in wide beam radiation protection materials. Table B.1 Half-value layer thickness of aluminum
Source
Note: The effective value layer in the middle is obtained by linear method. C
(Appendix
Standard scattering body
Standard teaching for the following simulation body Liu × special scattering allowance, the source of the need × needle line and the different test objects. The specific material and the size of the body are also related to the standard. The standard body is defined as:
Material: pine wood root, moisture content 2 plus, surface and smooth, sub-band or this treatment, the material size is not allowed to be pressed around the material: thickness m, length and width size 1 and the image plane length of the measured equipment when the length and width of the body size difference is 20:
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