CN109580664B - High concentration uranium measuring apparatu - Google Patents
High concentration uranium measuring apparatu Download PDFInfo
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- CN109580664B CN109580664B CN201811593709.1A CN201811593709A CN109580664B CN 109580664 B CN109580664 B CN 109580664B CN 201811593709 A CN201811593709 A CN 201811593709A CN 109580664 B CN109580664 B CN 109580664B
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- sample bottle
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- americium
- fixing plate
- seat body
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- 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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2223/00—Investigating materials by wave or particle radiation
- G01N2223/10—Different kinds of radiation or particles
- G01N2223/101—Different kinds of radiation or particles electromagnetic radiation
- G01N2223/1013—Different kinds of radiation or particles electromagnetic radiation gamma
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- Measurement Of Radiation (AREA)
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Abstract
The invention relates to the technical field of uranium conversion, and particularly discloses a high-concentration uranium measuring instrument. The device has the advantages of simple structure, acid corrosion resistance, irradiation control resistance and high automation degree.
Description
Technical Field
The invention belongs to the technical field of uranium conversion, and particularly relates to a high-concentration uranium measuring instrument.
Background
The gamma absorption measuring device is commonly adopted in the nuclear fuel field to measure the content of high-concentration uranium, and the device has the following problems when in use: 1) the americium source baffle is switched on and off in a manual mode, and when an operator switches the americium source baffle manually, the position of the americium source baffle is changed due to shaking, so that the error of a measuring result is large; 2) the device only can display measurement counting by using a single-channel analyzer, and when the peak shifts, errors caused by the shift of the peak position cannot be eliminated; 3) the sample cell is reused, and the sample cell can be used after being cleaned for many times, so that the workload of operators is large; 4) gamma radioactivity greatly interferes with the measurement, and when the count rate of the sample is greater than the count rate absorbed by the sample, the error of the measurement is over 50%.
Therefore, a high-concentration uranium measuring instrument with better measuring result stability and high automation degree needs to be researched, the problems are fundamentally solved from the aspect of instrument design, and the aim of rapidly and accurately providing analysis data for the spent fuel process is achieved.
Disclosure of Invention
The invention aims to provide a high-concentration uranium measuring instrument which can realize rapid and accurate detection.
The technical scheme of the invention is as follows:
a high-concentration uranium measuring instrument comprises a cover body, a base body, an americium radioactive source, an electric support rod, a movable fixing plate, a guide rail, a sample bottle cap, a sample bottle holder, a sample bottle sleeve, a detector, a glove box, a multi-channel analyzer, a computer and a pull rod motor;
seat body fixing plates are arranged on two sides of the seat body and welded at the bottom of the glove box;
welding the seat body and the seat body fixing plates at two ends together through a welding piece, wherein the seat body fixing plates are welded on a bottom plate of the glove box;
the welding part is higher than the bottom plate of the glove box;
the sample bottle is sleeved in the center of the base body and is fixed on the base body by a screw; the sample bottle is arranged in the sample bottle support, and the sample bottle support is arranged in the sample bottle sleeve;
a sample bottle cap is arranged at an opening above the sample bottle to prevent the sample from scattering into the sample bottle holder;
a cover body is arranged above the sample bottle and covers the welding part, so that liquid or solid in the glove box can be prevented from falling into the sample bottle holder and affecting the measurement result;
a cover lifting knob is fixedly arranged at the center of the cover body through a cover fastening screw;
two collimation holes on the same horizontal line are arranged on the left side and the right side of the sample bottle sleeve, wherein the collimation hole on the left side is right opposite to a probe of the detector;
the detector is fixed by a detector fixing plate at the lower part, and the detector fixing plate is fixed on the seat body through a screw;
the detector is connected with the multi-channel analyzer;
an americium source embedding plate is arranged on the right side of the sample bottle sleeve, and the bottom end of the americium source embedding plate is fixedly connected with the right side of the movable fixed plate below the americium source embedding plate;
an americium radioactive source is embedded on the americium source embedding plate; the americium radioactive source and the two collimation holes of the sample bottle sleeve are on the same horizontal line;
a guide rail is arranged right above the movable fixing plate, is arranged in parallel with the americium source embedded plate and is fixed on the seat body through screws;
the movable fixing plate can move along the guide rail;
the lower part of the movable fixing plate is welded and fixed with one end of the electric support rod, the other end of the electric support rod is connected with the pull rod motor, and the pull rod motor is connected with the computer through a signal wire.
And the position where the base fixing plate is welded with the glove box is provided with a rubber sealing gasket resistant to acid and alkali corrosion, so that the function of sealing alpha radioactivity in the glove box is achieved.
And a cover body sealing gasket is arranged between the cover body and the cover fastening screw and used for sealing the cover body.
The two ends of the movable fixing plate are provided with blocking blocks, so that the movable fixing plate can be prevented from falling off from the guide rail.
The sample bottle support is made of polyvinyl chloride material and can be cleaned or replaced if polluted.
The detector is a FAST SDD detector.
The pull rod motor receives signals of a computer, drives the electric support rod to move, further drives the movable fixing plate below the guide rail to move, and enables the americium source embedding plate to move back and forth, so that the detector receives or cuts off gamma rays of an americium radioactive source, the signals of the gamma rays are transmitted to the multichannel analyzer by the detector, the gamma ray signals are converted into electric signals by the multichannel analyzer and transmitted to the computer, and therefore automatic measurement of uranium content is achieved.
The invention has the following remarkable effects:
(1) the device has the advantages of simple structure, acid corrosion resistance, irradiation control resistance and high automation degree.
(2) The device realizes automation of opening and closing the americium radioactive source by using the pull rod motor.
(3) The device of the invention prevents the cross contamination of the sample by using the disposable sample bottle.
(4) The device eliminates the influence of the gamma radioactivity of the sample on the measurement result by using a FAST SDD detector.
(5) The device of the invention adopts a multi-channel analyzer, can realize the energy calibration of the characteristic peak and eliminate the measurement error caused by peak drift.
Drawings
Fig. 1 is a schematic structural diagram of a uranium measuring instrument.
In the figure: 1. a cover lifting knob; 2. a cover fastening screw; 3. a cover body sealing gasket; 4. a cover body; 5. a welding part; 6. a base body; 7. americium radioactive sources; 8. an americium source embedded board; 9. an electric stay bar; 10. moving the fixed plate; 11. a guide rail; 12. a sample bottle cap; 13. a sample bottle; 14. a sample bottle holder; 15. a sample bottle sleeve; 16. a detector fixing plate; 17. a detector; 18. a seat body fixing plate; 19. a glove box; 20. a multi-channel analyzer; 21. a computer; 22. a pull rod motor.
Detailed Description
The invention is described in further detail below with reference to the figures and the embodiments.
As shown in fig. 1, a high concentration uranium measuring instrument includes a lid lifting knob 1, a lid fastening screw 2, a lid sealing gasket 3, a lid 4, a welding part 5, a base 6, an americium radioactive source 7, an americium source embedding plate 8, an electric stay bar 9, a movable fixing plate 10, a guide rail 11, a sample bottle cap 12, a sample bottle 13, a sample bottle holder 14, a sample bottle sleeve 15, a detector fixing plate 16, a detector 17, a base fixing plate 18, a glove box 19, a multichannel analyzer 20, a computer 21 and a pull rod motor 22.
And seat body fixing plates 18 are arranged on two sides of the seat body 6, and the seat body fixing plates 18 are welded at the bottom of the glove box 19. And a rubber sealing gasket resistant to acid and alkali corrosion is arranged at the welding position of the seat body fixing plate 18 and the glove box 19, so that the function of sealing alpha radioactivity in the glove box 19 is achieved.
The seat body 6 is welded with the seat body fixing plates 18 at the two ends through welding pieces 5, and the seat body fixing plates 18 are welded on the bottom plate of the glove box 19. The weldment 5 is higher than the bottom plate of the glove box 19.
The sample bottle sleeve 15 is arranged at the central position of the base body 6 and fixed on the base body 6 by screws. The sample bottle 13 is arranged in the sample bottle holder 14, and the sample bottle holder 14 is arranged in the sample bottle sleeve 15. A sample bottle cap 12 is provided at the upper opening of the sample bottle 13 to prevent the sample from spilling into the sample bottle holder 14. The sample bottle holder 14 is made of polyvinyl chloride and can be cleaned or replaced if the sample bottle holder is polluted.
A cover body 4 is arranged above the sample bottle 13, the cover body 4 covers the welding piece 5, and liquid or solid in the glove box 19 can be prevented from falling into the sample bottle holder 14 to influence the measurement result. A cover lifting knob 1 is fixedly arranged at the central position of the cover body 4 through a cover fastening screw 2, and a cover body sealing gasket 3 is arranged between the cover body 4 and the cover fastening screw 2 and used for sealing the cover body 4.
Two alignment holes on the same horizontal line are arranged on the left side and the right side of the sample bottle sleeve 15, wherein the alignment hole on the left side is opposite to the probe of the detector 17.
The detector 17 is fixed by a detector fixing plate 16 at the lower part, and the detector fixing plate 16 is fixed on the seat body 6 through screws. The detector 17 is connected to a multichannel analyzer 20. The detector 17 is a FAST SDD detector.
An americium source embedded plate 8 is arranged on the right side of the sample bottle sleeve 15, and the bottom end of the americium source embedded plate 8 is fixedly connected with the right side of the movable fixing plate 10 below the americium source embedded plate. An americium radioactive source 7 is embedded on the americium source embedding plate 8. The americium radioactive source 7 and the two collimation holes of the sample bottle sleeve 15 are on the same horizontal line.
A guide rail 11 is arranged right above the movable fixing plate 10, and the guide rail 11 is arranged in parallel with the americium source embedded plate 8 and fixed on the seat body 6 through screws. The movable fixing plate 10 is movable along a guide rail 11.
The two ends of the movable fixing plate 10 are provided with blocking blocks, so that the movable fixing plate 10 can be prevented from falling off from the guide rail 11.
The lower part of the movable fixing plate 10 is welded and fixed with one end of the electric stay bar 9, the other end of the electric stay bar 9 is connected with a pull bar motor 22, and the pull bar motor 22 is connected with a computer 21 through a signal wire.
The pull rod motor 22 receives a signal of the computer 21, drives the electric stay rod 9 to move, further drives the movable fixing plate 10 below the guide rail 11 to move, so that the americium source embedded plate 8 moves back and forth, the detector 17 receives or cuts off gamma rays of the americium radioactive source 7, the gamma ray signal is transmitted to the multichannel analyzer 20 through the detector 17, the gamma ray signal is converted into an electric signal through the multichannel analyzer 20, and the electric signal is transmitted to the computer 21, and therefore automatic measurement of uranium content is achieved.
Claims (7)
1. A high concentration uranium measuring apparatu which characterized in that: the device comprises a cover body (4), a seat body (6), an americium radioactive source (7), an electric support rod (9), a movable fixing plate (10), a guide rail (11), a sample bottle cap (12), a sample bottle (13), a sample bottle holder (14), a sample bottle sleeve (15), a detector (17), a glove box (19), a multi-channel analyzer (20), a computer (21) and a pull rod motor (22);
seat body fixing plates (18) are arranged on two sides of the seat body (6), and the seat body fixing plates (18) are welded at the bottom of the glove box (19);
the seat body (6) is welded with seat body fixing plates (18) at two ends through a welding piece (5), and the seat body fixing plates (18) are welded on a bottom plate of the glove box (19);
the welding part (5) is higher than the bottom plate of the glove box (19);
the sample bottle sleeve (15) is arranged at the central position of the base body (6) and is fixed on the base body (6) by screws; the sample bottle (13) is arranged in a sample bottle holder (14), and the sample bottle holder (14) is arranged in a sample bottle sleeve (15);
a sample bottle cap (12) is arranged at an upper opening of the sample bottle (13) to prevent a sample from scattering into a sample bottle holder (14);
a cover body (4) is arranged above the sample bottle (13), the cover body (4) covers the welding part (5), and liquid or solid in the glove box (19) can be prevented from falling into the sample bottle holder (14) to influence the measurement result;
a cover lifting knob (1) is fixedly arranged at the central position of the cover body (4) through a cover fastening screw (2);
two alignment holes on the same horizontal line are arranged on the left side and the right side of the sample bottle sleeve (15), wherein the alignment hole on the left side is right opposite to a probe of the detector (17);
the detector (17) is fixed by a detector fixing plate (16) at the lower part, and the detector fixing plate (16) is fixed on the seat body (6) through a screw;
the detector (17) is connected with a multi-channel analyzer (20);
an americium source embedding plate (8) is arranged on the right side of the sample bottle sleeve (15), and the bottom end of the americium source embedding plate (8) is fixedly connected with the right side of a movable fixing plate (10) below the americium source embedding plate;
an americium radioactive source (7) is embedded on the americium source embedding plate (8); the americium radioactive source (7) and the two collimation holes of the sample bottle sleeve (15) are on the same horizontal line;
a guide rail (11) is arranged right above the movable fixing plate (10), the guide rail (11) and the americium source embedded plate (8) are arranged in parallel and fixed on the seat body (6) through screws;
the movable fixing plate (10) can move along the guide rail (11);
the lower part of the movable fixing plate (10) is fixedly welded with one end of the electric support rod (9), the other end of the electric support rod (9) is connected with the pull rod motor (22), and the pull rod motor (22) is connected with the computer (21) through a signal line.
2. A high-concentration uranium measuring instrument according to claim 1, wherein: and the welding position of the seat body fixing plate (18) and the glove box (19) is provided with an acid-base corrosion resistant rubber sealing gasket which plays a role in sealing alpha radioactivity in the glove box (19).
3. A high-concentration uranium measuring instrument according to claim 2, wherein: a cover body sealing gasket (3) is arranged between the cover body (4) and the cover fastening screw (2) and is used for sealing the cover body (4).
4. A high-concentration uranium measuring instrument according to claim 3, wherein: the two ends of the movable fixing plate (10) are provided with stop blocks, so that the movable fixing plate (10) can be prevented from falling off from the guide rail (11).
5. A high-concentration uranium measuring instrument according to claim 4, wherein: the sample bottle holder (14) is made of polyvinyl chloride material and can be cleaned or replaced if polluted.
6. A high concentration uranium measuring instrument according to claim 5, wherein: the detector (17) is a FAST SDD detector.
7. A high concentration uranium measuring instrument according to any one of claims 1 to 6, wherein: the pull rod motor (22) receive the signal of computer (21), drive electronic vaulting pole (9) and move, and then drive removal fixed plate (10) motion below guide rail (11), and make americium source embedding board (8) back-and-forth movement for detector (17) receive or break off the gamma ray of americium radiation source (7), the signal of gamma ray is transmitted multichannel analyzer (20) by detector (17), change gamma ray signal into the signal of telecommunication by multichannel analyzer (20), and transmit computer (21), thereby realize uranium content's automatic measure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811593709.1A CN109580664B (en) | 2018-12-25 | 2018-12-25 | High concentration uranium measuring apparatu |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811593709.1A CN109580664B (en) | 2018-12-25 | 2018-12-25 | High concentration uranium measuring apparatu |
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| CN109580664A CN109580664A (en) | 2019-04-05 |
| CN109580664B true CN109580664B (en) | 2021-11-16 |
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| CN201811593709.1A Active CN109580664B (en) | 2018-12-25 | 2018-12-25 | High concentration uranium measuring apparatu |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110044938A (en) * | 2019-06-05 | 2019-07-23 | 成都理工大学 | A kind of uranium concentration measuring device of spentnuclear fuel extract liquor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN203053817U (en) * | 2012-11-20 | 2013-07-10 | 中国原子能科学研究院 | L absorption edge densitometer |
| JP5574148B2 (en) * | 2008-12-01 | 2014-08-20 | 独立行政法人放射線医学総合研究所 | Method for absolute measurement of radioactivity of positron decay nuclides that emit gamma rays, method for determining detection efficiency of radiation detector assembly, and method for calibrating radiation measurement apparatus |
| CN105181719A (en) * | 2015-10-19 | 2015-12-23 | 核工业理化工程研究院 | Online measurement method of centration of uranium in solution |
| CN105277579A (en) * | 2014-06-13 | 2016-01-27 | 日本株式会社日立高新技术科学 | X-ray fluorescence analyzer |
| CN106990124A (en) * | 2017-03-31 | 2017-07-28 | 中国核动力研究设计院 | The on-line measurement device and measuring method of uranium content in a kind of uranium-bearing liquid |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101504380B (en) * | 2009-03-12 | 2011-03-16 | 中国原子能科学研究院 | X-ray fluorescence analyzer |
| US9279894B2 (en) * | 2011-02-09 | 2016-03-08 | Lawrence Livermore National Security, Llc | Systems and methods for neutron detection using scintillator nano-materials |
| CN106569250B (en) * | 2016-10-21 | 2019-03-22 | 核工业北京化工冶金研究院 | A kind of online uranium mine leaches ore pulp uranium concentration measuring device and application method |
-
2018
- 2018-12-25 CN CN201811593709.1A patent/CN109580664B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5574148B2 (en) * | 2008-12-01 | 2014-08-20 | 独立行政法人放射線医学総合研究所 | Method for absolute measurement of radioactivity of positron decay nuclides that emit gamma rays, method for determining detection efficiency of radiation detector assembly, and method for calibrating radiation measurement apparatus |
| 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 |
| CN203053817U (en) * | 2012-11-20 | 2013-07-10 | 中国原子能科学研究院 | L absorption edge densitometer |
| CN105277579A (en) * | 2014-06-13 | 2016-01-27 | 日本株式会社日立高新技术科学 | X-ray fluorescence analyzer |
| CN105181719A (en) * | 2015-10-19 | 2015-12-23 | 核工业理化工程研究院 | Online measurement method of centration of uranium in solution |
| CN106990124A (en) * | 2017-03-31 | 2017-07-28 | 中国核动力研究设计院 | The on-line measurement device and measuring method of uranium content in a kind of uranium-bearing liquid |
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