JPS57151881A - Method and apparatus for nondestructively measuring uranium - Google Patents
Method and apparatus for nondestructively measuring uraniumInfo
- Publication number
- JPS57151881A JPS57151881A JP3705281A JP3705281A JPS57151881A JP S57151881 A JPS57151881 A JP S57151881A JP 3705281 A JP3705281 A JP 3705281A JP 3705281 A JP3705281 A JP 3705281A JP S57151881 A JPS57151881 A JP S57151881A
- Authority
- JP
- Japan
- Prior art keywords
- sample
- uranium
- photons
- energy
- intensity
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Measurement Of Radiation (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
PURPOSE:To verify uranium accurately and quickly, by irradiating photons to a sample from the outside, obtaining the concentration of the uranium in the sample from the intensity of the photons after they have transmitted through the sample, meanwhile, measuring the intensity of the gamma ray emitted from 235U in the sample, and obtaining the quantity of the 235U. CONSTITUTION:The photons from an external light source 1 are irradiated on the sample 4 through a shutter 2 and a collimator 3. The photons transmitted through the sample 4 are inputted to a first photon detector 6 through a collimator 5. The external light source 1 irradiates the phosons including the photon which has the intensity I10 and the energy E2 that is lower than the energy of the absorbing end of the uranium by the amount of minute energy, and the photon which has the intensity Ih and the energy Eh that is higher by the amount of the energy at the absorbing end of the uranium. When the shutter 2 is opened, the sample 4 is irradiated by said two kinds of photons, and the uanium concentration rhoU is computed. When the shutter 2 is closed, the enrichment R is computed from said rhoU. Thus the uranium is verified accurately and quickly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3705281A JPS57151881A (en) | 1981-03-14 | 1981-03-14 | Method and apparatus for nondestructively measuring uranium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3705281A JPS57151881A (en) | 1981-03-14 | 1981-03-14 | Method and apparatus for nondestructively measuring uranium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57151881A true JPS57151881A (en) | 1982-09-20 |
Family
ID=12486800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3705281A Pending JPS57151881A (en) | 1981-03-14 | 1981-03-14 | Method and apparatus for nondestructively measuring uranium |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57151881A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3413844A1 (en) | 1983-04-13 | 1984-10-18 | Doryokuro Kakunenryo Kaihatsu Jigyodan, Tokio/Tokyo | METHOD AND DEVICE FOR MEASURING THE URANISOTOPE ENHANCEMENT |
| JPS63269049A (en) * | 1987-04-25 | 1988-11-07 | Mitsubishi Metal Corp | Method for quantifying alpha radioactivity in waste |
| RU2645307C1 (en) * | 2017-02-10 | 2018-02-20 | Публичное акционерное общество "Машиностроительный завод" | Device for express control of uranium enrichment in powders |
-
1981
- 1981-03-14 JP JP3705281A patent/JPS57151881A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3413844A1 (en) | 1983-04-13 | 1984-10-18 | Doryokuro Kakunenryo Kaihatsu Jigyodan, Tokio/Tokyo | METHOD AND DEVICE FOR MEASURING THE URANISOTOPE ENHANCEMENT |
| US4629600A (en) * | 1983-04-13 | 1986-12-16 | Doryokuro Kakunenryo Kaihatsu Jigyodan | Method and apparatus for measuring uranium isotope enrichment |
| JPS63269049A (en) * | 1987-04-25 | 1988-11-07 | Mitsubishi Metal Corp | Method for quantifying alpha radioactivity in waste |
| RU2645307C1 (en) * | 2017-02-10 | 2018-02-20 | Публичное акционерное общество "Машиностроительный завод" | Device for express control of uranium enrichment in powders |
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