CA1199554A - Pressure reducing device - Google Patents
Pressure reducing deviceInfo
- Publication number
- CA1199554A CA1199554A CA000407770A CA407770A CA1199554A CA 1199554 A CA1199554 A CA 1199554A CA 000407770 A CA000407770 A CA 000407770A CA 407770 A CA407770 A CA 407770A CA 1199554 A CA1199554 A CA 1199554A
- Authority
- CA
- Canada
- Prior art keywords
- venturi tube
- aerosol
- particles
- measuring chamber
- aerosols
- 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.)
- Expired
Links
- 239000002245 particle Substances 0.000 claims abstract description 43
- 239000000443 aerosol Substances 0.000 claims abstract description 39
- 238000005070 sampling Methods 0.000 claims abstract description 7
- 239000007787 solid Substances 0.000 claims abstract description 7
- 230000005855 radiation Effects 0.000 claims abstract description 4
- 239000004094 surface-active agent Substances 0.000 claims description 7
- 239000004020 conductor Substances 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 3
- 229910052731 fluorine Inorganic materials 0.000 claims description 3
- 239000011737 fluorine Substances 0.000 claims description 3
- 125000001153 fluoro group Chemical group F* 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 8
- 230000000717 retained effect Effects 0.000 description 7
- 238000000151 deposition Methods 0.000 description 6
- 230000008021 deposition Effects 0.000 description 6
- 238000005259 measurement Methods 0.000 description 6
- 239000003921 oil Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 3
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- -1 fluorescein ammonium salts Chemical class 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- OYEHPCDNVJXUIW-FTXFMUIASA-N 239Pu Chemical compound [239Pu] OYEHPCDNVJXUIW-FTXFMUIASA-N 0.000 description 1
- 229910001369 Brass Inorganic materials 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000000727 fraction Substances 0.000 description 1
- DNNSSWSSYDEUBZ-OUBTZVSYSA-N krypton-85 Chemical compound [85Kr] DNNSSWSSYDEUBZ-OUBTZVSYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- OYEHPCDNVJXUIW-VENIDDJXSA-N plutonium-238 Chemical compound [238Pu] OYEHPCDNVJXUIW-VENIDDJXSA-N 0.000 description 1
- 229920000136 polysorbate Polymers 0.000 description 1
- 229910052704 radon Inorganic materials 0.000 description 1
- SYUHGPGVQRZVTB-UHFFFAOYSA-N radon atom Chemical compound [Rn] SYUHGPGVQRZVTB-UHFFFAOYSA-N 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000008234 soft water Substances 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 108010003641 statine renin inhibitory peptide Proteins 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 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
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- 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)
- Sampling And Sample Adjustment (AREA)
- Measurement Of Radiation (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8114430A FR2510266A1 (fr) | 1981-07-24 | 1981-07-24 | Dispositif de detection d'aerosols |
| FR8114430 | 1981-07-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1199554A true CA1199554A (en) | 1986-01-21 |
Family
ID=9260846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000407770A Expired CA1199554A (en) | 1981-07-24 | 1982-07-21 | Pressure reducing device |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US4496837A (https=) |
| EP (1) | EP0072279B1 (https=) |
| JP (1) | JPS5826285A (https=) |
| CA (1) | CA1199554A (https=) |
| DE (1) | DE3268538D1 (https=) |
| FR (1) | FR2510266A1 (https=) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0188973B1 (fr) * | 1985-01-04 | 1989-07-12 | Commissariat A L'energie Atomique | Dispositif de localisation à distance de sources radioactives |
| FR2575821B1 (fr) * | 1985-01-04 | 1987-01-30 | Commissariat Energie Atomique | Dispositif de localisation a distance de sources radioactives |
| CH671465A5 (https=) * | 1986-09-19 | 1989-08-31 | Industrieorientierte Forsch | |
| CN104166154B (zh) * | 2014-06-26 | 2017-02-15 | 中国核电工程有限公司 | 一种pig取样及监测系统和方法 |
| CN108663704B (zh) * | 2018-05-03 | 2021-08-06 | 中国工程物理研究院材料研究所 | 一种人工α放射性核素气溶胶浓度连续监测方法 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2653620A (en) * | 1949-01-04 | 1953-09-29 | Phillips Petroleum Co | Process and means for regulating the gas pressure in containers |
| US2721270A (en) * | 1951-08-14 | 1955-10-18 | Willard H Bennett | Leak primarily for mass spectrometers |
| US2775707A (en) * | 1955-05-09 | 1956-12-25 | Cons Electrodynamics Corp | Heat compensating device |
| US3130920A (en) * | 1961-03-28 | 1964-04-28 | Codeco | Nozzle having a converging inlet zone followed by a diverging outlet zone |
| AR203210A1 (es) * | 1973-09-14 | 1975-08-22 | Gen Signal Corp | Aparato para estrangular el flujo de un fluido comprimible |
| JPS5318494B2 (https=) * | 1973-11-22 | 1978-06-15 | ||
| JPS5194028A (https=) * | 1975-02-14 | 1976-08-18 | ||
| DE2947302A1 (de) * | 1979-11-23 | 1981-05-27 | Münchener Apparatebau für elektronische Geräte Kimmel GmbH & Co KG, 8011 Hohenbrunn | Verfahren zum nachweis von in einem vorgegebenen energiebereich liegenden (alpha)-strahlen |
-
1981
- 1981-07-24 FR FR8114430A patent/FR2510266A1/fr active Granted
-
1982
- 1982-07-19 US US06/399,263 patent/US4496837A/en not_active Expired - Fee Related
- 1982-07-20 EP EP82401352A patent/EP0072279B1/fr not_active Expired
- 1982-07-20 DE DE8282401352T patent/DE3268538D1/de not_active Expired
- 1982-07-21 CA CA000407770A patent/CA1199554A/en not_active Expired
- 1982-07-23 JP JP57127818A patent/JPS5826285A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FR2510266B1 (https=) | 1984-04-06 |
| JPS5826285A (ja) | 1983-02-16 |
| DE3268538D1 (en) | 1986-02-27 |
| US4496837A (en) | 1985-01-29 |
| EP0072279A1 (fr) | 1983-02-16 |
| EP0072279B1 (fr) | 1986-01-15 |
| FR2510266A1 (fr) | 1983-01-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |