CN107179158A - Gaseous state tritium contains facility tiny leakage method of testing - Google Patents

Gaseous state tritium contains facility tiny leakage method of testing Download PDF

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Publication number
CN107179158A
CN107179158A CN201710411792.5A CN201710411792A CN107179158A CN 107179158 A CN107179158 A CN 107179158A CN 201710411792 A CN201710411792 A CN 201710411792A CN 107179158 A CN107179158 A CN 107179158A
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tritium
facility
sample
leakage
tiny leakage
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CN107179158B (en
Inventor
卢勇杰
沈崇雨
朱力桂
陈世勋
高克勤
徐远翔
孟建波
张学森
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Institute of Materials of CAEP
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/40—Investigating fluid-tightness of structures by using electric means, e.g. by observing electric discharges
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N2001/028—Sampling from a surface, swabbing, vaporising

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Measurement Of Radiation (AREA)

Abstract

Contain facility tiny leakage method of testing the invention provides a kind of gaseous state tritium, belong to leak detection technology field.This method includes：Using tritium ionisation chamber test system monitor in real time and record tritium contain facility operations between and protecting hand casing in tritium concentration；Tritium concentration between acquisition tritium containing facility operations with protecting hand casing, judges that tritium contains facility and whether there is tiny leakage；If tritium contains facility and there is tiny leakage, facility outer surface is contained to tritium using reference wiping method it is sampled and is made and prepare sample；Tested using liquid scintillation spectrometer preparing sample, the position of tiny leakage point is judged according to test data.This method can accurately and rapidly judge that tritium contains the position of facility tiny leakage point.

Description

Gaseous state tritium contains facility tiny leakage method of testing
Technical field
The present invention relates to leak detection technology field, contain facility tiny leakage in particular to a kind of gaseous state tritium and test Method.
Background technology
The utilization of fusion energy resource is one of important channel that the mankind solve energy crisis.At present, international magnetic confinement fusion heap And the fusion reactor project that proposes of China is carrying out substantial amounts of basic scientific research and engineering chemistry database work (ITER).These work In, a large amount of operations to fusion fuel tritium (more based on gaseous state tritium) are all referred to, because tritium has hot (~10000Ci/ G), and gaseous state tritium have easily spread and permeate the characteristics of, therefore, in the operation of tritium, the protection to tritium is particularly important, and this is not Only it is related to environment and personal security, simultaneously as tritium is prohibitively expensive in itself, carries out the containing of tritium, reduce the accidental discharge of tritium, Also there is high economic benefit.
In view of tritium it is strong than putting, easily diffusion, easily infiltration, it is monovalent high the characteristics of, find that tritium contains facility and leaked simultaneously in time Accurately leakage point is judged, and be correspondingly processed, the discharge for reducing tritium is highly important, while being also the work that must accomplish Make.Generally, tritium contains the tritium for having pressure sensor to be used in real-time monitoring facilities in facility (or tritium operating system) Pressure, once occurring pressure anomaly change, then can determine whether that facility occurs in that the leakage of tritium, be leaked for this significant tritium, one As leakage point position can be judged rapidly according to operating experience, however, containing for tritium in facility, pressure is without significant changes, such as What rapidly and accurately judges specific leakage point, and carries out respective handling to it in time, then is an important and relatively more difficult skill Art works.
The content of the invention
Contain facility tiny leakage method of testing it is an object of the invention to provide a kind of gaseous state tritium, set so as to realize that tritium contains Quick, the accurate judgement of tiny leakage point is applied, technical support is provided for corresponding subsequent treatment.
What embodiments of the invention were realized in：A kind of gaseous state tritium contains facility tiny leakage method of testing, wherein, at least The part tritium contains facility and is located in protecting hand casing, and the protecting hand casing is located at tritium and contained in facility operations, described Method includes：
Monitored in real time using tritium ionisation chamber test system and record the tritium and contained between facility operations and the protective gloves Tritium concentration in case；
Obtain the tritium contain between facility operations and the protecting hand casing tritium concentration, judge that the tritium containing facility is It is no to there is tiny leakage；
If the tritium, which contains facility, has tiny leakage, facility outer surface is contained to the tritium using reference wiping method and carried out Sample and be made and prepare sample；
The sample for preparing is tested using liquid scintillation spectrometer, the position of tiny leakage point is judged according to test data.
In optional embodiment of the present invention, the tritium between the acquisition tritium containing facility operations with the protecting hand casing The step of concentration, includes：
According to monitoring result, judge whether tritium concentration is higher than threshold value, if so, it is micro- tentatively to judge that the tritium containing facility is present Leakage.
It is described tentatively to judge that the tritium contains the step of facility has tiny leakage and included in optional embodiment of the present invention：
According to the tritium concentration situation of change between tritium containing facility operations with the protecting hand casing, tiny leakage is determined Region；
If abnormal rise occurs in the tritium concentration in the protecting hand casing, judge that the tritium contains the tiny leakage point of facility In the protecting hand casing；
If abnormal rise occurs in the tritium concentration that the tritium contains in facility operations, judge that the tritium contains the micro- of facility The tritium that leakage point is located at outside the protecting hand casing contains facility regional area.
In optional embodiment of the present invention, the use reference wiping method contains facility outer surface to the tritium and taken Sample is simultaneously made the step of preparing sample and included：
Using the absorbent cotton soaked, the diverse location for containing facility in the tritium is separately sampled, obtains wiping sample, and record Each wiping position for wiping sample；
Sample preparation is carried out to wiping sample using scintillation solution, formation prepares sample.
In optional embodiment of the present invention, the separately sampled step bag of the diverse location in tritium containing facility Include：
The tritium contain facility doubtful leakage position and the tritium contain facility be difficult leakage position respectively take to Few three wipings sample.
In optional embodiment of the present invention, the use liquid scintillation spectrometer is tested the sample for preparing, according to survey The step of examination data judge the position of tiny leakage point includes：
Multiple samples that prepare are tested using the liquid scintillation spectrometer, and record each sample for preparing and are corresponded to Test data；
The counting for preparing sample for contrasting the doubtful leakage position that the tritium contains facility contains facility with the tritium It is difficult the counting for preparing sample of leakage position；
Contain facility when the counting for preparing sample that the tritium contains the doubtful leakage position of facility is more than the tritium When being difficult the three times of the counting for preparing sample of leakage position, then judge the doubtful position as tiny leakage point.
In optional embodiment of the present invention, if the tritium contains the counting for preparing sample of the doubtful leakage position of facility Less than three times of the counting for preparing sample for being difficult leakage position that the tritium contains facility, then repeatedly following step：
Tritium containing facility outer surface is sampled and is made using reference wiping method and prepares sample；
The sample for preparing is tested using liquid scintillation spectrometer, the position of tiny leakage point is judged according to test data.
In optional embodiment of the present invention, the tritium contain between facility operations and the protecting hand casing by pipeline and The tritium ionisation chamber test system connection.
In optional embodiment of the present invention, the detection limit of the tritium ionisation chamber test system is less than 3.0 × 10-9Ci/L。
In optional embodiment of the present invention, the tritium contains the wiping sample of the doubtful leakage position of facility and described The wiping sample for being difficult leakage position that tritium contains facility is respectively three.
The beneficial effect of the embodiment of the present invention is：It is fast that this method can be used for the tiny leakage point for containing facility to gaseous state tritium to carry out Speed, accurately judgement, it contains to the gaseous state tritium in operation or in the intermittent phase, and facility is effective, and the scope of application is big, meanwhile, The Micro blazed-grating point that can also be used to liquid tritium containing facility is accurately judged.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be attached to what is used required in embodiment Figure is briefly described, it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, therefore is not construed as pair The restriction of scope, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to this A little accompanying drawings obtain other related accompanying drawings.
Fig. 1 is that the tritium that provides contains between facility operations in the embodiment of the present invention, protecting hand casing, tritium contain facility and tritium The structural representation of ionisation chamber test system；
Fig. 2 is the schematic flow sheet of offer gaseous state tritium containing facility tiny leakage method of testing in the embodiment of the present invention；
The schematic flow sheet for the sub-step that Fig. 3 is step S110 in Fig. 2；
The schematic flow sheet for the sub-step that Fig. 4 is step S120 in Fig. 2.
Icon：100- protecting hand casings；200- tritiums contain facility；300- tritium ionisation chamber test systems；400- tritiums, which contain, to be set Apply operation room.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is A part of embodiment of the present invention, rather than whole embodiments.The present invention implementation being generally described and illustrated herein in the accompanying drawings The component of example can be arranged and designed with a variety of configurations.
Therefore, the detailed description of embodiments of the invention below to providing in the accompanying drawings is not intended to limit claimed The scope of the present invention, but be merely representative of the present invention selected embodiment.Based on the embodiment in the present invention, this area is common The every other embodiment that technical staff is obtained under the premise of creative work is not made, belongs to the model that the present invention is protected Enclose.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi It is defined in individual accompanying drawing, then it further need not be defined and explained in subsequent accompanying drawing.
In the description of the invention, it is necessary to which explanation, the orientation or position relationship of the instruction such as term " interior ", " outer " are base In orientation shown in the drawings or position relationship, or the orientation usually put when using of the invention product or position relationship, only It is to be described for the ease of the description present invention with simplified, rather than indicates or imply that the device or element of meaning must be with specifically Orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In the description of the invention, in addition it is also necessary to explanation, unless otherwise clearly defined and limited, term " setting ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can be Mechanically connect or electrically connect；Can be joined directly together, can also be indirectly connected to by intermediary, can be two The connection of element internal.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood in the present invention In concrete meaning.
As shown in fig.1, gaseous state tritium provided in an embodiment of the present invention contains the micro- leak point decision method of facility, its mainly according to Hardware is played to be tested according to this, including 400, protecting hand casing 100, tritium contain facility 200, tritium ionization between tritium containing facility operations Room test system 300 and liquid scintillation spectrometer.
Wherein, liquid scintillation spectrometer is arranged on tritium and contained between facility operations outside 400, finally to draw accurate test Data.
As shown in fig.1, wherein, tritium contains being at least partially disposed in protecting hand casing 100 of facility 200, in other words, tritium The entirety or major part for containing facility 200 are respectively positioned in protecting hand casing 100, and protecting hand casing 100 is to protect and tackle Tritium contains the unexpected tritium leakage that may be present of facility 200.
As shown in fig.1, simultaneously, tritium contain between facility operations 400 and protecting hand casing 100 by pipeline respectively with tritium Ionisation chamber test system 300 is connected, during tritium ionisation chamber test system 300 is used to detect that tritium contains the operation of facility 200 in real time Respective tritium concentration in 400 between protecting hand casing 100 and tritium containing facility operations, is transported to find that tritium contains facility 200 in time The tritium tiny leakage event occurred during row.
In addition, the detection limit of tritium ionisation chamber test system 300 should be less than 3.0 × 10-9Ci/L。
As shown in fig.2, the embodiment of the present invention, which provides a kind of gaseous state tritium, contains the micro- leak point decision method of facility, this method Including：
Step S100, is monitored and records tritium and contain between facility operations 400 and anti-in real time using tritium ionisation chamber test system 300 Tritium concentration in handguard casing 100.
Glove box is that high purity inert gas is filled with casing, and is circulated throughout and filters the laboratory of active material therein and set It is standby.Also referred to as vacuum glove box, inert gas shielding case etc..
Understood according to above-mentioned, protecting hand casing 100 is located at tritium and contained 400 between facility operations, using two independent pipelines By tritium ionisation chamber test system 300 be respectively connected to tritium contain facility operations between 400 and protecting hand casing 100 in, so as to pass through tritium 400 are carried out in fact with respective tritium concentration in protecting hand casing 100 ionisation chamber test system 300 contains facility operations to tritium respectively When monitoring, to be further processed.
It should be noted that tritium mainly contrasts protecting hand casing with the presence or absence of leakage according to tritium ionisation chamber test system 300 What the tritium concentration level in 400 between 100 and tritium containing facility operations was realized.
Step S110, obtain tritium contain facility operations between 400 and protecting hand casing 100 tritium concentration, judge tritium containing set Apply 200 and whether there is tiny leakage.
Tritium containing facility operations 400 and protecting hand casing 100 are monitored according to above-mentioned tritium ionisation chamber test system 300 The data arrived, judge tritium contain facility operations between 400 and protecting hand casing 100 in tritium concentration whether be higher than threshold value, the threshold value As normal operating level (is determined) an order of magnitude (10 times) by design and operational monitoring result, if between tritium containing facility operations 400 or protecting hand casing 100 in the tritium concentration of one of them when being higher than normal operating level an order of magnitude, then tiny leakage Point is located at tritium and contained 400 or protecting hand casing 100 between facility operations.
As shown in fig.3, specifically, step S110 also includes following sub-step：
Step S111, according to tritium contain facility operations between 400 and protecting hand casing 100 tritium concentration situation of change, specifically Determine the position in tiny leakage region.
Step S112, if abnormal rise occurs in the tritium concentration in protecting hand casing 100, judges that tritium contains facility 200 Tiny leakage point is located in protecting hand casing 100.
Step S113, if abnormal rise occurs in the tritium concentration in 400 between tritium containing facility operations, judges tritium containing facility The tritium that 200 tiny leakage point is located at outside protecting hand casing 100 contains the regional area of facility 200.
In other words, now, tritium contains being at least partially disposed at outside protecting hand casing 100 in facility 200, i.e. the part tritium bag Be installed with apply 200 be located at protecting hand casing 100 it is outer and in tritium contain facility operations between in 400.
Step S120, if tritium contains facility 200 and there is tiny leakage, is contained outside facility 200 using reference wiping method to tritium Surface, which is sampled and is made, prepares sample.
According in above-mentioned steps, determine tiny leakage be located at that protecting hand casing 100 is outer or protecting hand casing 100 in.
As shown in fig.4, optional, step S120 also includes following sub-step：
Step S121, using the absorbent cotton soaked, the diverse location for containing facility 200 in tritium is separately sampled, is wiped Sample, and record each wiping position for wiping sample.
It will prepare to prepare the absorbent cotton water or other Hquids that wipe sample, containing the doubtful of facility 200 in tritium lets out Leakage position (connecting portion and welding position living) takes at least three wiping samples, wherein, connecting portion and welding position living are due to close Envelope property and welding quality, there is a possibility that leakage is larger；And tritium contain facility 200 be difficult leakage position (body or The outer surface of person's container) at least three wiping samples are taken, thus, by the independently keeping of above-mentioned two groups of wiping samples, and record in detail each Wipe the wiping position of sample.
Step S122, carries out sample preparation to wiping sample using scintillation solution, obtains preparing sample.
Step S130, is tested preparing sample using liquid scintillation spectrometer, and tiny leakage point is judged according to test data Position.
Open liquid scintillation spectrometer, it is ensured that it is in normal operating conditions, multiple samples that prepare are used into liquid scintillation successively Spectrometer is tested, and record each prepares the corresponding test data of sample.
In the present embodiment, the leakage position that is difficult of doubtful leakage position and tritium containing facility 200 that tritium contains facility 200 divides Three wiping samples are not taken respectively, then the quantity for preparing sample is six altogether.
First sample is prepared by three of the doubtful leakage position of tritium containing facility 200 to be tested using liquid scintillation spectrometer, And record three test datas for preparing sample.
Sample is prepared by three that are difficult leakage position of tritium containing facility 200 again to be tested using liquid scintillation spectrometer, And record three test datas for preparing sample.
Or sample and it is difficult the system of leakage position conversely, exchanging tritium and containing the preparing for doubtful leakage position of facility 200 The testing sequence of standby sample, it should be noted that need preparing doubtful leakage position sample and be difficult the preparation of leakage position herein Sample is differentiated, to avoid test data from obscuring.
Three of the doubtful leakage position that arrangement tritium contains facility 200 prepare the corresponding test data of sample and tritium containing is set Apply 200 three that are difficult leakage position prepare sample, and contrast the meter for preparing sample that tritium contains the doubtful leakage position of facility 200 Number contains the counting for preparing sample for being difficult leakage position of facility 200 with tritium.
Wherein, facility 200 is contained not when the counting for preparing sample that tritium contains the doubtful leakage position of facility 200 is more than tritium During the three times of the counting for preparing sample of easy leakage position, then judge the doubtful position as tiny leakage point.
It should be noted that being added their confirmation for suspicious data, it is necessary to carry out repeated sampling test, to ensure to find accurately micro- let out Leak source, i.e. repeatedly following step：
Tritium containing facility 200 outer surface is sampled and is made using reference wiping method and prepares sample.
Tested using liquid scintillation spectrometer preparing sample, the position of tiny leakage point is judged according to test data.
It is accurate, fast that this method is applicable not only to gaseous state tritium containing facility 200 tiny leakage point of the operation neutralization in the gap phase The judgement of speed, is equally applicable to occur tritium tiny leakage and its inside is contained into the containing of the tritium after tritium is properly transferred out in time Accurate, the quick judgement of the tiny leakage point of facility 200.
In summary, this method realizes quick, the accurate judgement for containing the tiny leakage point of facility 200 to tritium, after being corresponding Continuous processing provides technical support.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies Change, equivalent substitution, improvement etc., should be included in the scope of the protection.

Claims (10)

1. a kind of gaseous state tritium contains facility tiny leakage method of testing, wherein, at least partly described tritium contains facility and is located at protecting hand In casing, the protecting hand casing is located at tritium and contained in facility operations, it is characterised in that methods described includes：
Monitored in real time using tritium ionisation chamber test system and record the tritium and contained between facility operations and in the protecting hand casing Tritium concentration；
Obtain the tritium contain between facility operations and the protecting hand casing tritium concentration, judge whether the tritium containing facility is deposited In tiny leakage；
If the tritium, which contains facility, has tiny leakage, facility outer surface is contained to the tritium using reference wiping method and is sampled And be made and prepare sample；
The sample for preparing is tested using liquid scintillation spectrometer, the position of tiny leakage point is judged according to test data.
2. gaseous state tritium according to claim 1 contains facility tiny leakage method of testing, it is characterised in that described in the acquisition Tritium contain facility operations between and the protecting hand casing tritium concentration the step of include：
According to monitoring result, judge whether tritium concentration is higher than threshold value, if so, tentatively judging that the tritium contains facility and there is micro- let out Leakage.
3. gaseous state tritium according to claim 2 contains facility tiny leakage method of testing, it is characterised in that the preliminary judgement The tritium contains the step of facility has tiny leakage and included：
According to the tritium concentration situation of change between tritium containing facility operations with the protecting hand casing, the area of tiny leakage is determined Domain；
If abnormal rise occurs in the tritium concentration in the protecting hand casing, judge that the tiny leakage point of the tritium containing facility is located at In the protecting hand casing；
If abnormal rise occurs in the tritium concentration that the tritium contains in facility operations, judge that the tritium contains the tiny leakage of facility The tritium that point is located at outside the protecting hand casing contains facility regional area.
4. gaseous state tritium according to claim 1 contains facility tiny leakage method of testing, it is characterised in that the use reference Wiping method, which is sampled to tritium containing facility outer surface and the step of preparing sample is made, to be included：
Using the absorbent cotton soaked, the diverse location for containing facility in the tritium is separately sampled, obtains wiping sample, and record each Wipe the wiping position of sample；
Sample preparation is carried out to wiping sample using scintillation solution, formation prepares sample.
5. gaseous state tritium according to claim 4 contains facility tiny leakage method of testing, it is characterised in that described in the tritium The step that the diverse location of containing facility is separately sampled includes：
The leakage position that is difficult that the doubtful leakage position and the tritium for containing facility in the tritium contain facility respectively takes at least three Individual wiping sample.
6. gaseous state tritium according to claim 5 contains facility tiny leakage method of testing, it is characterised in that the use liquid Scintillation spectrometer is tested the sample for preparing, and the step of judging the position of tiny leakage point according to test data includes：
Multiple samples that prepare are tested using the liquid scintillation spectrometer, and records and each described prepares the corresponding survey of sample Try data；
The counting for preparing sample for contrasting the doubtful leakage position that the tritium contains facility contains being difficult for facility with the tritium The counting for preparing sample of leakage position；
Contain being difficult for facility when the counting for preparing sample that the tritium contains the doubtful leakage position of facility is more than the tritium During the three times of the counting for preparing sample of leakage position, then judge the doubtful position as tiny leakage point.
7. gaseous state tritium according to claim 6 contains facility tiny leakage method of testing, it is characterised in that if the tritium contains The counting for preparing sample of the doubtful leakage position of facility is less than the system for being difficult leakage position that the tritium contains facility Three times of the counting of standby sample, then repeatedly following step：
Tritium containing facility outer surface is sampled and is made using reference wiping method and prepares sample；
The sample for preparing is tested using liquid scintillation spectrometer, the position of tiny leakage point is judged according to test data.
8. gaseous state tritium according to claim 1 contains facility tiny leakage method of testing, it is characterised in that the tritium, which contains, to be set Operation room and the protecting hand casing is applied to connect with the tritium ionisation chamber test system by pipeline.
9. gaseous state tritium according to claim 1 contains facility tiny leakage method of testing, it is characterised in that the tritium ionisation chamber The detection limit of test system is less than 3.0 × 10-9Ci/L。
10. gaseous state tritium according to claim 5 contains facility tiny leakage method of testing, it is characterised in that the tritium contains The wiping sample of the doubtful leakage position of facility and the tritium contain the wiping sample for being difficult leakage position point of facility Wei not be three.
CN201710411792.5A 2017-06-05 2017-06-05 Gaseous state tritium contains facility tiny leakage test method Active CN107179158B (en)

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Publication number Priority date Publication date Assignee Title
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US4683749A (en) * 1986-05-22 1987-08-04 Westinghouse Electric Corp. Process and system for detecting and measuring a tritium gas leak
CN1985159A (en) * 2004-07-16 2007-06-20 因菲康有限公司 Gas sensor and method for operating a getter pump
CN205787153U (en) * 2015-12-28 2016-12-07 上海新漫传感技术研究发展有限公司 Ultralow background liquid dodges spectrometer measurement apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4016743A (en) * 1974-10-04 1977-04-12 Kms Fusion, Inc. Variable leak gas source
US4683749A (en) * 1986-05-22 1987-08-04 Westinghouse Electric Corp. Process and system for detecting and measuring a tritium gas leak
CN1985159A (en) * 2004-07-16 2007-06-20 因菲康有限公司 Gas sensor and method for operating a getter pump
CN205787153U (en) * 2015-12-28 2016-12-07 上海新漫传感技术研究发展有限公司 Ultralow background liquid dodges spectrometer measurement apparatus

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
张舒普: "《放射医学检验监测手册》", 30 September 1987 *

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