CN109581463A - The measuring device of americium and caesium in a kind of post-processing feed liquid - Google Patents
The measuring device of americium and caesium in a kind of post-processing feed liquid Download PDFInfo
- Publication number
- CN109581463A CN109581463A CN201811591764.7A CN201811591764A CN109581463A CN 109581463 A CN109581463 A CN 109581463A CN 201811591764 A CN201811591764 A CN 201811591764A CN 109581463 A CN109581463 A CN 109581463A
- Authority
- CN
- China
- Prior art keywords
- lead set
- lead
- chamber door
- caesium
- americium
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910052695 Americium Inorganic materials 0.000 title claims abstract description 16
- LXQXZNRPTYVCNG-UHFFFAOYSA-N americium atom Chemical compound [Am] LXQXZNRPTYVCNG-UHFFFAOYSA-N 0.000 title claims abstract description 16
- 229910052792 caesium Inorganic materials 0.000 title claims abstract description 16
- TVFDJXOCXUVLDH-UHFFFAOYSA-N caesium atom Chemical compound [Cs] TVFDJXOCXUVLDH-UHFFFAOYSA-N 0.000 title claims abstract description 16
- 239000007788 liquid Substances 0.000 title claims abstract description 15
- 238000012805 post-processing Methods 0.000 title claims abstract description 14
- 230000000694 effects Effects 0.000 claims abstract description 13
- 238000005259 measurement Methods 0.000 claims abstract description 9
- 230000005251 gamma ray Effects 0.000 claims abstract description 4
- 238000012216 screening Methods 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 33
- 239000013078 crystal Substances 0.000 claims description 6
- 239000004809 Teflon Substances 0.000 claims description 3
- 229920006362 Teflon® Polymers 0.000 claims description 3
- 238000004026 adhesive bonding Methods 0.000 claims description 3
- 230000002285 radioactive effect Effects 0.000 claims description 3
- 238000010079 rubber tapping Methods 0.000 claims description 3
- TVFDJXOCXUVLDH-RNFDNDRNSA-N cesium-137 Chemical compound [137Cs] TVFDJXOCXUVLDH-RNFDNDRNSA-N 0.000 abstract description 3
- 239000003758 nuclear fuel Substances 0.000 abstract description 3
- LXQXZNRPTYVCNG-YPZZEJLDSA-N americium-241 Chemical compound [241Am] LXQXZNRPTYVCNG-YPZZEJLDSA-N 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000012958 reprocessing Methods 0.000 abstract description 2
- FVAUCKIRQBBSSJ-UHFFFAOYSA-M sodium iodide Chemical compound [Na+].[I-] FVAUCKIRQBBSSJ-UHFFFAOYSA-M 0.000 description 35
- 239000000523 sample Substances 0.000 description 15
- 235000009518 sodium iodide Nutrition 0.000 description 11
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 238000005202 decontamination Methods 0.000 description 1
- 230000003588 decontaminative effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
- G01T1/16—Measuring radiation intensity
- G01T1/17—Circuit arrangements not adapted to a particular type of detector
- G01T1/178—Circuit arrangements not adapted to a particular type of detector for measuring specific activity in the presence of other radioactive substances, e.g. natural, in the air or in liquids such as rain water
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
- G01T1/16—Measuring radiation intensity
- G01T1/20—Measuring radiation intensity with scintillation detectors
- G01T1/202—Measuring radiation intensity with scintillation detectors the detector being a crystal
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T7/00—Details of radiation-measuring instruments
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- High Energy & Nuclear Physics (AREA)
- Molecular Biology (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The present invention relates to nuclear fuel reprocessing technology fields, specifically disclose a kind of measuring device for post-processing americium and caesium in feed liquid, NaI detector is set in the region surrounded by the centre bore of lead set A, lead set B and lead set D, the connecting line of NaI detector is pierced by from the wire casing on lead set B, is connected with multichannel spectrometer；The multichannel spectrometer is connect by data line with computer；Gamma-ray signal is transformed into electric signal by the NaI detector, is transferred in computer after multichannel spectrometer carries out signal screening, is realized sample automatic measurement.Apparatus of the present invention can effectively interference of the shielding environment gamma-rays to measuring system using multichannel spectrometer can measure the gamma activity activity concentration of caesium -137 and americium -241 simultaneously, measurement result is directly read by software.
Description
Technical field
The invention belongs to nuclear fuel reprocessing technology fields, and in particular to a kind of measurement dress for post-processing americium and caesium in feed liquid
It sets.
Background technique
Gamma activity activity concentration measuring device includes well type vitriol chamber, sodium iodide in the used process material liquid in nuclear fuel field
The components such as probe, scaler, the device have following problem: (1) the gamma activity activity of caesium -137 can only be measured using this device
Concentration；(2) device is counted using scaler, and the parameters such as probe high pressure, amplification factor, threshold value are both needed to manual adjustment, adjusting side
Formula is extremely cumbersome, and post existing scaler service life is longer, is only able to display counting；(3) NaI detector crystal section it is smaller,
Detection efficient is less than 5%；(4) detector is mounted on well type vitriol chamber, and when operation easily pollutes, and decontamination is relatively difficult；(5) lead
Room thickness is insufficient, and total gamma activity high sample has larger impact to measurement result when being placed near measuring instrument, it is necessary to will
Sample is transferred to other rooms and can just eliminate the effects of the act.
Therefore, need to develop the measuring device of a set of shield effectiveness good, high degree of automation americium and caesium.
Summary of the invention
The purpose of the present invention is to provide the measuring devices of americium and caesium in a kind of post-processing feed liquid, realize the high-precision of americium and caesium
Degree measurement.
Technical scheme is as follows:
The measuring device of americium and caesium in a kind of post-processing feed liquid, including lead set A, lead set B, lead set C, lead set D, vitriol chamber door,
Lead set E, sample carrier, glove box sealing plate, lead set fixed plate, sealing plate, glove box, multichannel spectrometer, computer, NaI crystal are visited
Survey device；
The aperture on the right side wall of the glove box, sealing plate is set to the tapping of glove box by gluing, for sealing
Glove box；
It is equipped with glove box sealing plate on the right side of the sealing plate, the glove box sealing plate is attached at the outer of glove box
On side wall；
It is equipped with lead set E in the left side of the sealing plate, is screwed on glove box sealing plate；It is equipped in lead set E
Coniform groove, coniform vitriol chamber door are embedded in the groove of lead set E after closing；
The sample carrier is screwed in the center of vitriol chamber door inboard, in the same horizontal line with detector；
The lead set fixed plate is long square plate, multiple parallel grooves is equipped in lead set fixed plate, for fixing lead
Cover A, lead set B, lead set C, lead set D；
The lead set D, lead set A, lead set B, lead set C from left to right, are sequentially embedded in the groove in lead set fixed plate；
The lead set D is annulus shape, is fixed by screws in the right side of glove box sealing plate, the bottom end of lead set D is embedding
In the groove in lead set fixed plate；
The lead set A is annulus shape, and the bottom end of lead set A is embedded in the groove in lead set fixed plate；
The lead set B is annulus shape, wire casing is radially equipped on lead set B, it is solid that the bottom end of lead set B is embedded at lead set
In groove on fixed board；
The lead set C is disc-shape, and center not aperture, the bottom end of lead set C is embedded at the groove in lead set fixed plate
In, and lead set C and lead set fixed plate are fixedly linked with screw；
The NaI detector is set in the region surrounded by the centre bore of lead set A, lead set B and lead set D, NaI detector
Connecting line be pierced by from the wire casing on lead set B, be connected with multichannel spectrometer；
The multichannel spectrometer is connect by data line with computer；
Gamma-ray signal is transformed into electric signal by the NaI detector, is passed after multichannel spectrometer carries out signal screening
It is defeated into computer, realize sample automatic measurement.
It further include being equipped with handle, rotary sleeve and rotating seat in the outside of the vitriol chamber door；
The rotary sleeve is welded on the left edge of vitriol chamber outer side of door, and rotary sleeve covers on rotating seat, plays fixed vitriol chamber
The effect of door；
The left edge of the rotating seat and lead set E is welded and fixed；
The handle is welded on the right hand edge of vitriol chamber outer side of door, by pulling handle to open vitriol chamber door based on rotating seat
Or it closes.
It further include being equipped with upper locating piece and lower locating piece in the outside of the vitriol chamber door；
The upper locating piece is welded on vitriol chamber door, the right side of handle, and lower locating piece is welded on lead set E, by upper
Locating piece is engaged with lower locating piece, guarantees that vitriol chamber door completely closes.
The center-hole diameter of the lead set A, lead set B and lead set D are equal, and adjacent two lead sets fitting is close.
The lead set A can be multiple according to radioactive intensity setting of different sizes.
The center hole wall and lateral wall of the wire casing connection lead set B.
The sealing plate is teflon seal plate.
Remarkable result of the invention is:
(1) apparatus of the present invention can effectively interference of the shielding environment gamma-rays to measuring system can be with using multichannel spectrometer
The gamma activity activity concentration of caesium -137 and americium -241 is measured simultaneously, and measurement result is directly read by software.
(2) the NaI crystal counter that apparatus of the present invention have used crystalline areas bigger, improves detection efficient, Er Qieyi
Each parameter setting of device carries out in software, avoids and manually adjusts the mistake that parameter is likely to occur, high degree of automation.
(3) sample of apparatus of the present invention shields vitriol chamber folding with convenience, completion sample replacement operation that can be simple and quick, and
It is not susceptible to pollute in operation, shield effectiveness is good, probe shield vitriol chamber convenient disassembly, being capable of quick-replaceable probe.
Detailed description of the invention
Fig. 1 is measuring device structural schematic diagram；
Fig. 2 is vitriol chamber door schematic diagram.
In figure: 1- lead set A；2- lead set B；3- lead set C；4- lead set D；5 vitriol chamber doors；6- lead set E；7- sample carrier；8- gloves
Case sealing plate；9- lead set fixed plate；10- sealing plate；11- glove box；12- multichannel spectrometer；13- computer；14-NaI crystal is visited
Survey device；15- handle；The upper locating piece of 16-；Locating piece under 17-；18- rotating seat；19- rotary sleeve.
Specific embodiment
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
The measuring device of americium and caesium in a kind of post-processing feed liquid as shown in Figure 1, including lead set A1, lead set B2, lead set C3,
It is lead set D4, vitriol chamber door 5, lead set E6, sample carrier 7, glove box sealing plate 8, lead set fixed plate 9, sealing plate 10, glove box 11, more
Road spectrometer 12, computer 13, NaI crystal counter 14, handle 15, upper locating piece 16, lower locating piece 17, rotating seat 18, rotation
Set 19.
The aperture on the right side wall of the glove box 11, sealing plate 10 are set to the tapping of glove box 11 by gluing, use
In seal box 11.It is equipped with glove box sealing plate 8 on the right side of the sealing plate 10, the glove box sealing plate 8 is sticked
In on the lateral wall of glove box 11.
The sealing plate 10 is teflon seal plate.
It is equipped with lead set E6 in the left side of the sealing plate 10, is screwed on glove box sealing plate 8, in lead set E6
Equipped with coniform groove, coniform vitriol chamber door 5 is embedded in the groove of lead set E6 after closing.
As shown in Fig. 2, being equipped with handle 15, upper locating piece 16, lower locating piece 17, rotary sleeve in the outside of the vitriol chamber door 5
18 and rotating seat 19.
The rotary sleeve 18 is welded on the left edge in 5 outside of vitriol chamber door, and 18 sets of rotary sleeve on rotating seat 19, are played solid
Determine the effect of vitriol chamber door 5.The rotating seat 19 and the left side edge of lead set E6 is welded and fixed.
The handle 15 is welded on the right hand edge in 5 outside of vitriol chamber door, by pulling handle 15 that vitriol chamber door 5 is made to be based on rotation
Seat 19 opens or closes.
The upper locating piece 16 is welded on vitriol chamber door 5, the right side of handle 15, and lower locating piece 17 is welded on lead set E6
On, by being engaged for upper locating piece 16 and lower locating piece 17, guarantee that vitriol chamber door 5 completely closes.
The sample carrier 7 is screwed in the inboard center of vitriol chamber door 5, with detector 14 in same horizontal line
On.
The lead set fixed plate 9 is long square plate, multiple parallel grooves is equipped in lead set fixed plate 9, for fixing
Lead set A1, lead set B2, lead set C3, lead set D4.From left to right, sequence is embedding by the lead set D4, lead set A1, lead set B2, lead set C3
In the groove in lead set fixed plate 9.
The lead set D4 is annulus shape, is fixed by screws in the right side of glove box sealing plate 8, the bottom end of lead set D4
It is embedded in the groove in lead set fixed plate 9.
The lead set A1 is annulus shape, and the bottom end of lead set A1 is embedded in the groove in lead set fixed plate 9.Described
Lead set A1 can be multiple according to radioactive intensity setting of different sizes.
The lead set B2 is annulus shape, wire casing is radially equipped on lead set B2, the bottom end of lead set B2 is embedded at lead
It covers in the groove in fixed plate 9.The center hole wall and lateral wall of the wire casing connection lead set B2.
The lead set C3 is disc-shape, and center not aperture, the bottom end of lead set C3 is embedded at recessed in lead set fixed plate 9
In slot, and lead set C3 and lead set fixed plate 9 are fixedly linked with screw.
The center-hole diameter of the lead set A1, lead set B2 and lead set D4 are equal, and adjacent two lead sets fitting is close.
The NaI detector 14 is set in the region surrounded by the centre bore of lead set A1, lead set B2 and lead set D4, NaI
The connecting line of detector 14 is pierced by from the wire casing on lead set B2, is connected with multichannel spectrometer 12, and the multichannel spectrometer 12 passes through number
It is connect according to line with computer 13.Gamma-ray signal is transformed into electric signal by the NaI detector 14, by multichannel spectrometer 12 into
It is transferred to after row signal screening in computer 13, realizes sample automatic measurement.
Claims (7)
1. the measuring device of americium and caesium in a kind of post-processing feed liquid, it is characterised in that: including lead set A (1), lead set B (2), lead set C
(3), lead set D (4), vitriol chamber door (5), lead set E (6), sample carrier (7), glove box sealing plate (8), lead set fixed plate (9), sealing
Plate (10), glove box (11), multichannel spectrometer (12), computer (13), NaI crystal counter (14)；
The aperture on the right side wall of the glove box (11), sealing plate (10) are set to the tapping of glove box (11) by gluing,
For seal box (11)；
Glove box sealing plate (8) are equipped on the right side of the sealing plate (10), the glove box sealing plate (8) is attached at gloves
On the lateral wall of case (11)；
Lead set E (6) are equipped in the left side of the sealing plate (10), are screwed on glove box sealing plate (8)；In lead set E
(6) coniform groove is equipped in, coniform vitriol chamber door (5) is embedded in the groove of lead set E (6) after closing；
The sample carrier (7) is screwed in the center of vitriol chamber door (5) inboard, with detector (14) in same level
On line；
The lead set fixed plate (9) is long square plate, multiple parallel grooves is equipped on lead set fixed plate (9), for fixing
Lead set A (1), lead set B (2), lead set C (3), lead set D (4)；
The lead set D (4), lead set A (1), lead set B (2), lead set C (3) from left to right, are sequentially embedded at lead set fixed plate (9)
On groove in；
The lead set D (4) is annulus shape, is fixed by screws in the right side of glove box sealing plate (8), the bottom of lead set D (4)
End is embedded in the groove on lead set fixed plate (9)；
The lead set A (1) is annulus shape, and the bottom end of lead set A (1) is embedded in the groove on lead set fixed plate (9)；
The lead set B (2) is annulus shape, wire casing is radially equipped on lead set B (2), the bottom end of lead set B (2) is embedded at
In groove in lead set fixed plate (9)；
The lead set C (3) is disc-shape, and center not aperture, the bottom end of lead set C (3) is embedded on lead set fixed plate (9)
In groove, and lead set C (3) and lead set fixed plate (9) are fixedly linked with screw；
The NaI detector (14) is set in the region surrounded by the centre bore of lead set A (1), lead set B (2) and lead set D (4),
The connecting line of NaI detector (14) is pierced by from the wire casing on lead set B (2), is connected with multichannel spectrometer (12)；
The multichannel spectrometer (12) is connect by data line with computer (13)；
Gamma-ray signal is transformed into electric signal by the NaI detector (14), carries out signal screening by multichannel spectrometer (12)
After be transferred in computer (13), realize sample automatic measurement.
2. the measuring device of americium and caesium in a kind of post-processing feed liquid as described in claim 1, it is characterised in that: further include in institute
The outside for stating vitriol chamber door (5) is equipped with handle (15), rotary sleeve (18) and rotating seat (19)；
The rotary sleeve (18) is welded on the left edge on the outside of vitriol chamber door (5), and rotary sleeve (18) covers on rotating seat (19), rises
To the effect of fixed vitriol chamber door (5)；
The rotating seat (19) and the left edge of lead set E (6) is welded and fixed；
The handle (15) is welded on the right hand edge on the outside of vitriol chamber door (5), by pulling handle (15) to be based on vitriol chamber door (5)
Rotating seat (19) opens or closes.
3. the measuring device of americium and caesium in a kind of post-processing feed liquid as claimed in claim 2, it is characterised in that: further include in institute
The outside for stating vitriol chamber door (5) is equipped with upper locating piece (16) and lower locating piece (17)；
The upper locating piece (16) is welded on vitriol chamber door (5), the right side of handle (15), and lower locating piece (17) is welded on lead set
On E (6), by being engaged for upper locating piece (16) and lower locating piece (17), guarantee that vitriol chamber door (5) completely close.
4. the measuring device of americium and caesium in a kind of post-processing feed liquid as claimed in claim 3, it is characterised in that: the lead set A
(1), the center-hole diameter of lead set B (2) and lead set D (4) are equal, and adjacent two lead sets fitting is close.
5. the measuring device of americium and caesium in a kind of post-processing feed liquid as claimed in claim 4, it is characterised in that: the lead set
A (1) can be multiple according to radioactive intensity setting of different sizes.
6. the measuring device of americium and caesium in a kind of post-processing feed liquid as claimed in claim 5, it is characterised in that: the wire casing
It is connected to the center hole wall and lateral wall of lead set B (2).
7. the measuring device of americium and caesium in a kind of post-processing feed liquid as claimed in claim 6, it is characterised in that: the sealing
Plate (10) is teflon seal plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811591764.7A CN109581463A (en) | 2018-12-25 | 2018-12-25 | The measuring device of americium and caesium in a kind of post-processing feed liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811591764.7A CN109581463A (en) | 2018-12-25 | 2018-12-25 | The measuring device of americium and caesium in a kind of post-processing feed liquid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109581463A true CN109581463A (en) | 2019-04-05 |
Family
ID=65932476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811591764.7A Pending CN109581463A (en) | 2018-12-25 | 2018-12-25 | The measuring device of americium and caesium in a kind of post-processing feed liquid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109581463A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021022955A1 (en) * | 2019-08-06 | 2021-02-11 | 苏州瑞派宁科技有限公司 | Radiation detection device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2617983A1 (en) * | 1987-07-08 | 1989-01-13 | Electricite De France | Device for measuring gamma activity of a radioactive liquid |
| CN101858985A (en) * | 2010-03-18 | 2010-10-13 | 成都理工大学 | Multifunctional rare earth product radioactivity detecting instrument based on composite detector |
| CN102736098A (en) * | 2012-06-28 | 2012-10-17 | 宁波君安药业科技有限公司 | Method and device for identifying radionuclide Sr-89 and analyzing nuclear purity |
| CN204101742U (en) * | 2014-09-03 | 2015-01-14 | 国家海洋局南海环境监测中心 | A kind of Portable detachable vitriol chamber for gamma spectrometer |
| CN108303306A (en) * | 2017-12-21 | 2018-07-20 | 中核四0四有限公司 | Spentnuclear fuel post-processes high-content uranium, neptunium, the direct method for measuring of plutonium in feed liquid |
| CN207779934U (en) * | 2017-12-27 | 2018-08-28 | 深圳市英联土地房地产估价顾问有限公司 | Wall defect detection equipment for Real Estate Appraisal |
-
2018
- 2018-12-25 CN CN201811591764.7A patent/CN109581463A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2617983A1 (en) * | 1987-07-08 | 1989-01-13 | Electricite De France | Device for measuring gamma activity of a radioactive liquid |
| CN101858985A (en) * | 2010-03-18 | 2010-10-13 | 成都理工大学 | Multifunctional rare earth product radioactivity detecting instrument based on composite detector |
| CN102736098A (en) * | 2012-06-28 | 2012-10-17 | 宁波君安药业科技有限公司 | Method and device for identifying radionuclide Sr-89 and analyzing nuclear purity |
| CN204101742U (en) * | 2014-09-03 | 2015-01-14 | 国家海洋局南海环境监测中心 | A kind of Portable detachable vitriol chamber for gamma spectrometer |
| CN108303306A (en) * | 2017-12-21 | 2018-07-20 | 中核四0四有限公司 | Spentnuclear fuel post-processes high-content uranium, neptunium, the direct method for measuring of plutonium in feed liquid |
| CN207779934U (en) * | 2017-12-27 | 2018-08-28 | 深圳市英联土地房地产估价顾问有限公司 | Wall defect detection equipment for Real Estate Appraisal |
Non-Patent Citations (2)
| Title |
|---|
| 刘广山等: "地下铁室铅室组合屏蔽低本底 HPGe γ 谱测量系统及其应用研究", 《辐射防护》 * |
| 黄仙珊: "岩(矿)心放射性伽玛顺检铅套法与常规法", 《福建地质》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021022955A1 (en) * | 2019-08-06 | 2021-02-11 | 苏州瑞派宁科技有限公司 | Radiation detection device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103837558B (en) | Multielement composition and content detection device and detection method in a kind of aqueous solution based on PGNAA technology | |
| CN104820230B (en) | A kind of Low background α, β activity analysis instrument | |
| US20050029465A1 (en) | Methods and devices for measuring the activity of a radioisotope | |
| CN104133236A (en) | Portable multifunctional digital radiation inspection instrument | |
| Anger | Scintillation counters for radioactive sample measurement | |
| WO2021022955A1 (en) | Radiation detection device | |
| WO2009114992A1 (en) | Integrated system and integrated method for x-ray radiation imaging and radioactive matter monitoring | |
| CN109406553B (en) | Online measuring device and method for determining concentration by gamma absorption method | |
| CN109581463A (en) | The measuring device of americium and caesium in a kind of post-processing feed liquid | |
| CN107884804A (en) | A kind of β measurement apparatus based on anticoincidence technique | |
| Saizu et al. | Lanthanum bromide scintillation detector for gamma spectrometry applied in internal radioactive contamination measurements | |
| US20140299757A1 (en) | Methods for radiation detection and characterization using a multiple detector probe | |
| CN108008440A (en) | low background α, β measuring device | |
| CN204705719U (en) | A kind of portable radioactive contamination meter | |
| CN102621170A (en) | Method for automatically determining measurement time in detection of energy spectrometer | |
| CN107731327B (en) | It can be to the coolant activity measuring system that source strength is adjusted | |
| Keith et al. | Analytical methods | |
| CN206097933U (en) | Screening box | |
| KR20160062257A (en) | Measurement device and method of total gamma activity for clearance | |
| CN2874483Y (en) | X-fluorescence sulfur detector | |
| CA3103948A1 (en) | System and method for evaluating elution efficiency and radiopurity of tc-99m generators | |
| Bossew et al. | True and spurious anomalies in ambient dose rate monitoring | |
| EP1131653B1 (en) | Method and device for measuring the radioactive contamination of a test object | |
| KR20130118293A (en) | Device for monitoring a nuclear material placed in a glove box | |
| James et al. | Compton suppression gamma-spectroscopy in the analysis of radium and lead isotopes in ocean sediments |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190405 |
|
| RJ01 | Rejection of invention patent application after publication |