CH494959A - Appareil de mesure continue et simultanée de la concentration dans l'atmosphère des descendants solides à vie courte du radon - Google Patents
Appareil de mesure continue et simultanée de la concentration dans l'atmosphère des descendants solides à vie courte du radonInfo
- Publication number
- CH494959A CH494959A CH419968A CH419968A CH494959A CH 494959 A CH494959 A CH 494959A CH 419968 A CH419968 A CH 419968A CH 419968 A CH419968 A CH 419968A CH 494959 A CH494959 A CH 494959A
- Authority
- CH
- Switzerland
- Prior art keywords
- radium
- activity
- strip
- beta
- radon
- Prior art date
Links
- 238000005259 measurement Methods 0.000 title claims description 37
- 229910052704 radon Inorganic materials 0.000 title claims description 30
- SYUHGPGVQRZVTB-UHFFFAOYSA-N radon atom Chemical compound [Rn] SYUHGPGVQRZVTB-UHFFFAOYSA-N 0.000 title claims description 30
- 239000007787 solid Substances 0.000 title claims description 12
- 230000000694 effects Effects 0.000 claims description 46
- HZEBHPIOVYHPMT-KUYOKYOWSA-N polonium-218 atom Chemical compound [218Po] HZEBHPIOVYHPMT-KUYOKYOWSA-N 0.000 claims description 25
- 238000005070 sampling Methods 0.000 claims description 23
- WABPQHHGFIMREM-RKEGKUSMSA-N lead-214 Chemical compound [214Pb] WABPQHHGFIMREM-RKEGKUSMSA-N 0.000 claims description 13
- 229910052705 radium Inorganic materials 0.000 claims description 13
- HCWPIIXVSYCSAN-UHFFFAOYSA-N radium atom Chemical compound [Ra] HCWPIIXVSYCSAN-UHFFFAOYSA-N 0.000 claims description 13
- 230000005855 radiation Effects 0.000 claims description 12
- 238000000926 separation method Methods 0.000 claims description 10
- 230000005284 excitation Effects 0.000 claims description 6
- 125000004122 cyclic group Chemical group 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 3
- 239000004065 semiconductor Substances 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 2
- 239000012528 membrane Substances 0.000 description 13
- 230000002285 radioactive effect Effects 0.000 description 5
- 229920002120 photoresistant polymer Polymers 0.000 description 4
- 238000007493 shaping process Methods 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 238000011109 contamination Methods 0.000 description 3
- 238000012937 correction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000717 retained effect Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 239000010445 mica Substances 0.000 description 2
- 229910052618 mica group Inorganic materials 0.000 description 2
- 238000005422 blasting Methods 0.000 description 1
- 210000000621 bronchi Anatomy 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 230000000422 nocturnal effect Effects 0.000 description 1
- 230000037361 pathway Effects 0.000 description 1
- 239000000700 radioactive tracer Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000004611 spectroscopical analysis Methods 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T7/00—Details of radiation-measuring instruments
- G01T7/02—Collecting means for receiving or storing samples to be investigated and possibly directly transporting the samples to the measuring arrangement; particularly for investigating radioactive fluids
- G01T7/04—Collecting means for receiving or storing samples to be investigated and possibly directly transporting the samples to the measuring arrangement; particularly for investigating radioactive fluids by filtration
-
- 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
- G01T1/18—Measuring radiation intensity with counting-tube arrangements, e.g. with Geiger counters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S250/00—Radiant energy
- Y10S250/02—Radon detection
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)
- Analytical Chemistry (AREA)
- Measurement Of Radiation (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR102649A FR1526275A (fr) | 1967-04-13 | 1967-04-13 | Procédé et appareil d'enregistrement simultané de la concentration dans l'atmosphère des descendants solides à vie courte du radon |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH494959A true CH494959A (fr) | 1970-08-15 |
Family
ID=8628818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH419968A CH494959A (fr) | 1967-04-13 | 1968-03-21 | Appareil de mesure continue et simultanée de la concentration dans l'atmosphère des descendants solides à vie courte du radon |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US3502876A (en:Method) |
| BE (1) | BE712857A (en:Method) |
| CH (1) | CH494959A (en:Method) |
| DE (1) | DE1764127A1 (en:Method) |
| ES (1) | ES352618A1 (en:Method) |
| FR (1) | FR1526275A (en:Method) |
| GB (1) | GB1191982A (en:Method) |
| IL (1) | IL29687A (en:Method) |
| LU (1) | LU55764A1 (en:Method) |
| NL (1) | NL6805182A (en:Method) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ZA831558B (en:Method) * | 1982-01-27 | 1983-09-30 | ||
| DE3436800A1 (de) * | 1984-10-06 | 1986-04-10 | Kernforschungsanlage Jülich GmbH, 5170 Jülich | Vorrichtung zur erfassung von ausfilterbaren gaskontaminationen |
| US4871914A (en) * | 1987-05-05 | 1989-10-03 | Sun Nuclear Corporation | Low-cost radon detector |
| US4891514A (en) * | 1987-11-05 | 1990-01-02 | David M. Gjerdrum | Device for monitoring radon exposure |
| AU624349B2 (en) * | 1987-11-05 | 1992-06-11 | David M. Gjerdrum | Device for monitoring radon exposure |
| US4920263A (en) * | 1988-01-26 | 1990-04-24 | Gemini Research, Inc. | Radon detection system |
| US5204528A (en) * | 1989-06-09 | 1993-04-20 | Consultec Scientific, Inc. | System for determining health risk due to radon progeny and uses thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2972678A (en) * | 1955-07-05 | 1961-02-21 | Anton Nicholas | Air particle monitor |
| US2892091A (en) * | 1955-11-03 | 1959-06-23 | David R Sawle | Continuous alpha air monitor |
| US3109096A (en) * | 1958-09-02 | 1963-10-29 | Philips Corp | System for determining the radioactivity of gas sols |
| US3092723A (en) * | 1958-09-24 | 1963-06-04 | Sharples Corp | Detection, metering and/or analysis of radioactive particles |
-
1967
- 1967-04-13 FR FR102649A patent/FR1526275A/fr not_active Expired
-
1968
- 1968-03-21 CH CH419968A patent/CH494959A/fr not_active IP Right Cessation
- 1968-03-25 US US715920A patent/US3502876A/en not_active Expired - Lifetime
- 1968-03-25 IL IL29687A patent/IL29687A/en unknown
- 1968-03-26 LU LU55764D patent/LU55764A1/xx unknown
- 1968-03-28 BE BE712857D patent/BE712857A/xx unknown
- 1968-04-05 DE DE19681764127 patent/DE1764127A1/de active Pending
- 1968-04-05 GB GB06457/68A patent/GB1191982A/en not_active Expired
- 1968-04-10 ES ES352618A patent/ES352618A1/es not_active Expired
- 1968-04-11 NL NL6805182A patent/NL6805182A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE1764127A1 (de) | 1972-02-17 |
| BE712857A (en:Method) | 1968-07-31 |
| US3502876A (en) | 1970-03-24 |
| GB1191982A (en) | 1970-05-13 |
| IL29687A (en) | 1970-10-30 |
| FR1526275A (fr) | 1968-05-24 |
| LU55764A1 (en:Method) | 1968-03-26 |
| ES352618A1 (es) | 1972-01-01 |
| NL6805182A (en:Method) | 1968-10-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased |