This specification specifies the general requirements, quality assurance regulations and delivery preparation for military microchannel plate photomultiplier tubes. This specification applies to photomultiplier tubes with microchannel plates (hereinafter referred to as photomultiplier tubes or products). SJ 20791-2000 Microchannel Plate Photomultiplier Tube General Specification SJ20791-2000 Standard download decompression password: www.bzxz.net

Military Standard of the Electronic Industry of the People's Republic of China FL5960
SJ207912000
General specification for microchannel plate photomultiplier tubes2000-10-20 Issued
2000-10-20 Implementation
Approved by the Ministry of Information Industry of the People's Republic of China 1 Scope
1.1 Subject content.
1.2 Scope of application
2 Referenced documents
3 Requirements
3.1 Detailed specifications,
3.2 Qualification assessment (QA)
First article:
Quality assurance outline
Structure and dimensions
3.6 Marking...
Appearance quality
Safety requirements
Performance characteristics
Quality assurance provisions
Inspection responsibilities
Inspection categories||t t||Inspection conditions·
First-production inspection·
4.5 Identification inspection
4.6 Quality consistency inspection
Packaging inspection
4.8 Inspection method
4.8 Other relevant requirements
5 Preparation for delivery
5.2 Transportation
Storage·
6 Notes
Intended use
Contents of ordering documents
6.4 Use and precautions
6.5 External accessories.
6.6 Characteristic curves
Appendix A Appearance and electrode connection of photomultiplier tubes (supplement) Appendix B Specification for inspection of appearance quality of photomultiplier tubes (supplement)
Appendix C Provisions for the preparation of detailed specifications for photomultiplier tubes (reference) KAoNrKAca-
(10)
General specification for microchannel plate photomultiplier tubes for military use in the electronics industry of the People's Republic of China 1 Scope
1.1 Subject matter
5J20791—2000
This specification specifies the general requirements, quality assurance provisions and delivery preparation for military microchannel plate photomultiplier tubes. 1.2 Scope of application
This specification applies to photomultiplier tubes with microchannel plates (hereinafter referred to as photomultiplier tubes or products). 2 References
GB/T191—1990 Pictorial symbol for packaging, storage and transportation GB/T2987--1996 Parameter symbol for electron tubes GB/T4597--1996 Vocabulary for electron tubes
GB/T5839--86 Rating system for electron tubes and semiconductor devices GB/T6388-86 Transport packaging and delivery mark GB/T7274-87 Test method for inter-electrode capacitance of electron tubes GJB150-86 Environmental test method for military equipment GJB I79A-96 Procedure and table for sampling inspection by counting GJB 360A-96 Test methods for electronic and electrical components GJB546A-96 Outline for quality assurance of electronic components GJB616-88 Test methods for electron tubes
GJB921-88 General specification for electron tube packaging
SJ20792-2000 Test methods for microchannel plate photomultiplier tubes 3 Requirements
3.1 Detailed specifications
The individual requirements for photomultiplier tubes of a specific tube type shall comply with the requirements of the detailed specifications. If the requirements of this specification conflict with the requirements of the detailed specifications, the detailed specifications shall prevail. The detailed specifications are a supplement to this specification: This specification is the basis for the preparation of detailed specifications. The provisions for the preparation of detailed specifications for photomultiplier tubes are shown in Appendix C (reference). 3.t.1 General references
The "according to regulations" or "regulations" used in this specification refer to the provisions in the detailed specifications when the prescribed documents or sources are not specified.
The Ministry of Information Industry of the People's Republic of China Issued on October 20, 2000 Implemented on October 20, 2000
3.1.2 Test
SJ 20791—2000
The general test conditions and test methods included in GB/T7274, GJB150, GJB360A, GJB616 or SJ20792 are part of this specification. Unless otherwise specified, any test method shall refer to the number in the above standards.
Unless otherwise specified, the destructive test (D) items of photomultiplier tubes are shown in Table 1. Table 1
Test Items
Solderability
Pin Strength
Flexible Lead Strength
Life Test
Note: Defective samples that do not affect the test results can be used for the damage test. 3.2 Qualification (QA)
GJB 360A Method 208
Unless otherwise specified, the photomultiplier tubes supplied in accordance with this specification shall be products that meet the qualification assessment of this specification and are included or approved to be included in the Qualified Product List (QPL) (see 4.4). The qualification assessment procedure shall comply with the relevant provisions of the military component quality certification procedure. 3.3 First Article
When the contract stipulates the requirement for first article inspection, the first article inspection shall be carried out (see 4.4). 3.4 Quality Assurance Program
The ordering party must first establish and implement the quality assurance program and quality assurance plan in accordance with the provisions of GJB546A before quality certification and product identification can be carried out. A complete set of quality assurance, management and control systems must be established in the development and production of products, and they should be promulgated and implemented in the form of documents, and the implementation status should be recorded. The appraisal agency or the relevant main accounting department has the right to check the implementation of the documents as a basis for maintaining qualification.
3.5 Structure and size
The structure and size of the photomultiplier tube and its accessories shall comply with the provisions of Appendix A (supplement) and detailed specifications. 3.5.1 Rating system
The rated values ​​in the detailed specifications shall comply with the provisions of GB/T5839. 3.5.2 Lead-out terminal
The lead-out terminal of the photomultiplier tube shall be made of materials with suitable physical, electrical and mechanical properties, and its structure and size shall comply with the provisions of the detailed specifications.
3.5.3 Terminal connection
The connection between the terminal and the electrode shall comply with the provisions of the detailed specifications. 3.5.4 Materials
The structural materials used for the photomultiplier tube shall comply with the provisions of the relevant standards. The photomultiplier tube manufactured with these materials shall be able to meet the requirements specified in the detailed specifications. 3.6 Marking
The photomultiplier tube shall have the following markings: a. Manufacturer identification (trademark or code): - 2 -
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b. Model:
Military mark "J\"
Manufacture number or year and month of manufacture:
SJ 20791--2000
Qualified mark or certification mark (the certification mark is "delivery date (if necessary)
Safety mark (if necessary);
Guaranteed service life (if necessary;
Storage life (if necessary):
j. Others.
If the marking area is insufficient, as many marks as possible should be marked in the above order. 3.7 Appearance quality
The appearance quality shall comply with the provisions of Appendix B (supplement) and (or) detailed specifications. 3.8 Safety requirements
When the photomultiplier tube uses materials that may cause hazards, it should be noted in accordance with relevant safety requirements. 3.9 Performance characteristics
The performance characteristics requirements of the photomultiplier tube are shown in Article 4.6. 4 Quality assurance provisions
4.1 Inspection responsibilities
Unless otherwise specified , the contractor shall be responsible for completing all inspections specified in this specification. When necessary, the ordering party or the superior appraisal agency or its authorized unit has the right to inspect any inspection item described in the specification. 4.1.1 Responsibility for Conformity
All products must meet all requirements of Chapter 3 and Chapter 5 of the specification. The inspections specified in this specification should become an integral part of the contractor's entire inspection system or quality program. If the contract includes inspection requirements not specified in this specification, the contractor shall also ensure that the products submitted for acceptance meet the contract requirements. Quality consistency inspection sampling does not allow the submission of products that are known to be defective, nor can the ordering party be required to accept defective products. 4.2 Inspection classification
The inspection classification of this specification is as follows:
a. Identification inspection
Identification inspection should be carried out when the product is finalized or qualified (QA) (see 4.4). When one of the following situations occurs, first article inspection can be used instead of identification inspection: - There are current detailed specifications but no qualified identification approval documents: - There are qualified identification approval documents, but they are not effective in determining production: - There are qualified identification approval documents but delivery is required before completion. b. Quality consistency inspection
Quality consistency inspection is divided into four inspection groups: A, B, C, and D. Groups A and B are batch inspections, and groups C and D are periodic inspections.
Group A inspection is a non-destructive test conducted on samples in an inspection batch or all products produced to verify whether the product meets the requirements of the specification. Group A inspection is used to check the characteristics that are most susceptible to changes in production process or production skills, as well as the performance that is critical to achieving the predetermined requirements. - 3 -
SJ20791—2000
Group B inspection -· Generally, it is a non-destructive test that is more complicated or requires more testing time than Group A inspection; Group B inspection is used to check the characteristics that are more affected by the quality of parts or equipment and less affected by production process or production skills. and those performances that require special tooling or special environments. The number of samples to be tested is less than that of Group A, and the tested samples can be delivered as products with little or no refurbishment. Group C inspections are generally periodic destructive tests used to check characteristics related to product design and materials. Group C inspections are more complex than Group A inspections, usually requiring simulation of the working environment, and are usually damaged or require major refurbishment after testing. The number of samples required for Group C inspections is less than that of Group B inspections. And it is related to production output or production cycle. Samples tested by Group C need to be significantly refurbished before they can be delivered as products. Group D inspections are destructive inspections, or long-term tests that consume all or a considerable portion of the design life. Group D inspections can only be performed on a small number of samples. The number of samples tested is related to production output or production cycle. Samples tested by Group D are not allowed to be delivered as products. 4.3 Inspection conditions
Unless otherwise specified, all inspections shall be conducted at a temperature of 15-35°C, a relative humidity of 45%-75% and an air pressure of 86kPa-106kPa. 4.4 First article inspection
First article inspection shall be conducted in accordance with the provisions of Table 2 or Table 3. Unless otherwise specified, the test samples shall be drawn from the products delivered in accordance with the contract.
4.5 Qualification inspection
Qualification inspection includes all inspection items specified in the detailed specification: The items in the "Qualification inspection" clause of the detailed specification shall be those characteristics that are less affected by the production process and production skills and are related to the product design structure and materials, as well as certain characteristics that need to be tightened, and characteristics with special environmental requirements. The samples for qualification inspection shall represent the normal production of the manufacturer and shall be samples drawn from current producers. To maintain the qualification of appraisal, one of the following measures can be selected: The contractor shall submit a test document every 12 months from the date of appraisal approval: a.
All appraisal tests shall be re-performed:
The contractor shall provide a qualified certificate.
The sample size of the appraisal test and the number of unqualified products allowed are shown in Table 2. Table 2
Inspection items
Appearance quality inspection
Dimension inspection
Non-working defect inspection
Photoelectric parameter test
Mechanical test
Environmental test
Life test
Packaging inspection
Sample size
Number of unqualified products allowed
4.4 in GJB 921
When the product quantity is less than 8 pieces, the sample size of the appraisal test and the number of unqualified products allowed are shown in Table 3. -4-
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Inspection Items
Appearance Quality Inspection
Dimension Inspection
Non-working Defect Inspection
Photoelectric Parameter Test
Mechanical Test
Environmental Test
Life Test
Over-installation Inspection
Note: 1) If the sample is too small, it should be no less than 2. 4.6 Quality Consistency Inspection
4.6.1 Structural Similarity
SJ 2079t-2000
Sample Size
Number of Non-qualified Products Allowed
When several types of tubes with basically the same design, material and process that have been finalized or qualified (a common detailed specification may also be formulated) are produced simultaneously or continuously, the inspection of their common performance can be sampled from one of the tube types, and the results can replace the inspection of other tube types. Unless otherwise specified, the common performance and related inspection items that can be purchased are as follows: 8: Shell and lead terminals
-size;
Lead terminal strength:
Weldability:
Constant humidity and heat.
b. Electrode structure including installation and positioning Inter-electrode capacitance:
Inter-electrode insulation resistance;
Vibration:
-Shock.
Structure of anode, microchannel plate and other electrodes and number of microchannel plates c.
Pulse response width;
Pulse rise time;
Transit time.
d. Photocathode and light window material
Cathode light sensitivity;
Cathode spectral sensitivity.
e.: Design of anode and microchannel plate and photocathode-life.
4.6.2 Composition of inspection batches
An inspection batch can be composed of one production batch or several production batches. These production batches are manufactured under basically the same conditions (materials, processes, equipment, etc.), and the production inspection results are also within the range specified in a detailed specification. According to the cumulative number of continuously produced products, the inspection batch can be determined by production shift, working day, week or month, and the inspection period shall not exceed two weeks (14 consecutive working days). In special circumstances, it can be appropriately extended, but not more than 3 months. 4.6.3 Inspection items
a. Appearance quality
One mark quality;
General appearance and quality
Shell quality:
Pipe pin and lead wire quality;
Sealing quality:
Light window quality:
Photocathode quality:
Active debris.
b. Dimensions
Main dimensions: total length, outer diameter of shell:
Detailed dimensions: dimensions with tolerance and limit values ​​in the appearance drawing. Non-working defects
Short circuit:
Open circuit:
Gas leakage.
d. Photoelectric parameters
Working voltage:
Microchannel plate input voltage:
Microchannel plate output voltage:
Microchannel plate working voltage:
Cathode illumination sensitivity;
Cathode radiation sensitivity;
Cathode relative spectral response characteristics;
Cathode absolute spectral response characteristics:
Anode illumination sensitivity:
Anode radiation sensitivity:
Spectral response range:
Gain:
Cathode current:
Maximum voltage and maximum current:
Nonlinearity of photoelectric characteristics;
Maximum DC linear current:
Anode sensitivity uniformity:
- Pulse rise time;
Pulse response width:
-Pulse fall time:
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~Transit time:
-Maximum pulse linear current;
-Single electron amplitude resolution:
Inter-electrode capacitance:bZxz.net
Inter-electrode insulation resistance.
e. Mechanical test
Pipe needle strength:
Soft lead strength:
-Weldability.
SJ 20791—2000
After each mechanical test, the following related items shall be inspected according to the detailed specifications: Lead-out terminal welding quality:
Lead-out terminals shall not be loose or broken:
Lead-out terminals and tube shells shall not have cracks or gaps at their joints: Leakage shall not occur.
f、Environmental test
Low temperature;
High temperature:
Constant damp heat:
Shock:
-Low pressure:
-Salt spray;
Temperature shock.
After each environmental test, the following items shall be inspected in accordance with the provisions of the detailed specifications: Appearance quality:
Anode sensitivity:
-Dark current.
&、Life test
The following items shall be inspected in accordance with the provisions of the detailed specifications:-Cathode sensitivity;
Compensation current.
4.6.4 Sampling plan
Unless otherwise specified, the detailed specification shall give the sampling plan for each part of the quality consistency inspection in accordance with the primary sampling plan in GJB179A and the requirements in Table 4. 7
Inspection division
Inspection or test
Appearance quality
Main dimensions
Non-working defects
Optoelectronic parameters
Optoelectronic parameters
Mechanical test
Environmental test
Life test
SJ 20791-2000
P(month)
Sampling requirements
See Appendix B (supplement)
IL= I, AQL=1.0
IL=II,AQL-0.4
IL-II, AQL-1.0
IL=S-3, AQL=6.5
nj=3, c,=0
n2=3, C2=1
n=l, c=0
25
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