Liquid Scintillation Measuring Instruments for Radioactivity Measurment
Some standard content:
National Metrology Verification System of the People's Republic of China J3G2042--39
Liquid Scintillation Radioactivity Meter Apparatus
Approved on September 11, 1989
Implemented on July 1, 1990
National Technical Supervision Drama
Metrology Thermal Reduction
Standard Instrument
Working Counter
Verification System for Liquid Scintillation Radioactivity Meter Cover Instrument Verification Scheme ul iiuuid Seinl'lallnn MeasutingInstrumentatorRadfoarisjty Measutemem3JG 2042-E
This national system was approved by the National Inspection and Supervision Car
and implemented on July 1, 199V. Year Unit
China Institute of Metrology
This system holds technical provisions from the beginning. The unit responsible for the verification system can choose the main drafter!
Dream drafter:
Relevant Bureau
Sanzang Office
Vehicle Yuanlu
(Bureau of Planning and Science Institute>
[China Institute of Metrology]
《China Institute of Metrology》
(China Institute of Metrology)
Total 5 pages 1
Liquid flash refining radioactive activity measuring instrument verification system water determination system is used for the verification of sugar transmission flash explosion, which needs to be verified, it is a well-known and effective body! The way of calibration of the ocean wave activity in China () country, the British Weifu Taiwan pulls the whole metering instrument, promotes the basic metering work standard metering base its sales transmission method, the basic calibration method etiquette metering system consists of three parts: the opening and testing of standard instruments, metering or standard technical work commonly used metering instruments,
a metrological British medical instrument
1 commercial body scintillation radioactive precision east home activity national benchmark 1.1 flash media release time search activity home want to release time character quality activity meter recording this network, as a unified full-format deficiency needs, it works standard base collection metering instrument transmission rate
1.2 concentrated body baking radioactive nuclear to report national manufacturing package correction: 4 (1S) quality base certificate installation (net double compliance) and S) travel activity benchmark installation, China promised to test the total light low treatment once , the business teaching liquid is allowed to be sold in the market, the chemical product body is modified to improve the performance of the electrical test circuit group,
1.3 The national law is not allowed to find 1 for
\H (n-hexadecane), \II (Iron Extract), this 1 is in the environment, (mono), contact element
5×10\-~4×J*Dg
5×1n*~4×lug
1,4 The national standard activity design organization requires the intention to prevent the feeling of "remaining in the question is 99.73%, with the same
*H(normal under the rise, (H style)
1+ (1 alkane (hand rice)
2 body source
4==2.4
main 0=±,9%
±+= ±, $a-~ ±. 0%
2.1 Concentration of the inside of the music industry: 5 Page 2
rkeokes
2042-89
("real alkane", "H (methyl monoxide), the most water 1×10*~4×10
six apples, north it 5×~×0
2.2 Liquid flash. Positive base rise: Xu with coupons: =1.8% (confidence probability is 997%, the following
public.3 Liquid internal interruption second working standard by the performance of ice flash standard radioactive recovery signature national standard should be connected to the recovery difficult.
Two metrological standards
Let the plate standard package refers to the in vitro standard device, liquid internal destruction system comprehensive standard understanding and release planning nuclear standard solution.
3 Run body flash refining standard non-hot place
3! The root of the state in six provinces ( Municipal) planning or department, relevant energy "commission" and enterprise construction liquid fast internal standard promotion installation benefits
3.2 Mu standard installation of this activity energy range
H (normal burning, I (example)
1×10*~4×10
14C (1 six, 1* rate), other discussions 5×10*~-4×10*BQ33 micro flash department evaluation accuracy of the enterprise saving benefit 4.||tt ||3.4-5 slip into a wave position frozen extinguishing policy series standard source for direct effect pain.
4 "Liquid deep internal combustion travel meaning series standard system
4.1 Inflammation body volume swing request system still standard flow report two training, a teaching body fire series underground
I Wang Fan secret:
(alkane (standard (1×10～9×
2+Ct stop sixteen system) (already process). 1℃ (rack) other nuclear maximum ×10~5 x10\q
total small determination of activity value 3.0%
Use controlled nuclide grade standard drop wave. Explosive liquid flash damage work its elegant measurement effect. b, the secondary flash extinguishing enterprise is judged to have the total uncertainty of your media activity: JG2042-..88
(stationary alkane), (*)
14℃(decane.1C(methane) rate of other nuclides
%
total 5 Yong page 3
I×161--gx15*Bg
5-10*.-5×13*5]
the primary standard liquid is allowed to be made and measured by the child body flash ignition standard device to form 4,2 zero detection and transfer small salt value of the flow, system, must replace the internal combustion work site for the production of secondary and enterprise liquid flash extinguishing standards to give the cumulative standard of a certain number of negative charge samples regularly taken as the basis for inspection.
4.3 Non-quenching standard source
The non-quenching standard source is divided into two parts: the first-level H (n-hexadecane), *I (methyl ether), 1+C (n-hexadecane), 14C (methyl ether) and the second-level H (n-hexadecane). 、\(A), 1+C (hexadecane), 1C (A) standard is made by filtration and adjusted in liquid. The activity range of the concentrated in-vivo non-destructive standard source, the total uncertainty of the activity compensation is ±0+3.0%
4.4 Validity period
The in-vivo non-destructive standard source is packaged in a low-elastic glass bottle (fire-sealed). The requirements for the storage of the series of standard sources and the non-destructive standard sources are described in detail. At room temperature, the liquid flash extinguishing system is valid for 5 years, and the non-radioactive flash extinguishing system is valid for 3 years. 5 The radioactivity of the radioactive standard solution
51 is divided into two numbers, and the total radiation concentration of the radioactive standard solution
is the concentration of the radioactivity of the radioactive standard solution, (ir* -10\)Bu/g
Including the uncertainty of the recovery value,
Page 4 of 5
rrknkes
JI242-83
H (positive hexadecaned) (protection box), \(朵)#=2.4%6=-36%
1 ({hexadecane) (Bar approval), 14℃ (A) 2.0 Other nuclear
~±(63%2.0)
The effective time thermal activity in the body is then directly calculated to the specified value, the secondary radioactive nuclear calibration liquid
The radioactivity of the secondary radioactive calibration liquid is: (101--10 *)/package
total uncertainty of life,
\[I (n-hexadecane), *H (toluene), water, 1\C (n-hexadecane), 14C [formaldehyde, other
±6=±5.0%
liquid scintillation standard value
5,2 for the accurate estimation of the supply, the laser flash medium working standard must be used to measure the secondary radioactive nuclear standard regularly, 5.3 validity period
radioactive nuclear standard serial number (fire to), the standard period of fire finance, the short fire case model, the standard liquid validity period is two safety periods. County teeth see production and said both books.
3 Working measuring instruments
6 Industrial counters are various energy counters, using single radioactive nuclear products for activity
6, 1 According to the activity range of the source counter, 1×:*~4×10*Egbzxz.net
Other loose limits are given,
5×10~4x104Bg
6, 3 The allowable error of liquid internal counting is 4=±14%
6.3 out of the first year, second year was released special note casting parent standard squeeze secret and first, second level, enterprise J3G7042-89
industry liquid single cumulative standard steel for its direct basic qualification standard, a total of 5 5
call storage body question deep radioactivity measurement instrument difference grab the box and the symbol change
B9 version of the body technology adjustment activity appropriate unit (Becquerel) 6 one not allowed to read the whole
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measurement Ge Dan
liquid scintillation radioactivity measurement instrument verification system block diagram high frequency social time signal point management school construction standard
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2X10*±- d ×13'
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\正1*：,1C单年；45·±2.6%
±63.8%±2.!
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afraid of victory management
a limit body good science and innovation life reading
positive)×10
14C: (n-hexadecane: 14C (甲年1
>+ -5xE
I ×:03- +XIc*B.
9量503
(relative degree
two single time natural all injection flow
fixed east money
one and enterprise body single system affairs
three nuclear technology
-or step life main cost 11012/3
blood disease control also
4 xhBy
*4=±14%
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