GB1123267A - Ionization chamber - Google Patents

Ionization chamber

Info

Publication number
GB1123267A
GB1123267A GB48505/66A GB4850566A GB1123267A GB 1123267 A GB1123267 A GB 1123267A GB 48505/66 A GB48505/66 A GB 48505/66A GB 4850566 A GB4850566 A GB 4850566A GB 1123267 A GB1123267 A GB 1123267A
Authority
GB
United Kingdom
Prior art keywords
remainder
efficient
response
ionization chamber
air
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
Application number
GB48505/66A
Inventor
Georges Betchen
Henri Joffre
Jose Mallen Herrero
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Commissariat a lEnergie Atomique CEA filed Critical Commissariat a lEnergie Atomique CEA
Publication of GB1123267A publication Critical patent/GB1123267A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J47/00—Tubes for determining the presence, intensity, density or energy of radiation or particles
    • H01J47/02—Ionisation chambers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J47/00—Tubes for determining the presence, intensity, density or energy of radiation or particles
    • H01J47/02—Ionisation chambers
    • H01J47/04—Capacitive ionisation chambers, e.g. the electrodes of which are used as electrometers

Landscapes

  • Measurement Of Radiation (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
  • Silicon Compounds (AREA)

Abstract

The wall of an ionization chamber containing a filling of air is formed of an alloy of Be with at least one of the elements Al, Mg and Si, the proportion of Be being such that the co-efficient of response of the wall to b radiation and to g and X-ray photons is substantially identical with the co-efficient of response of air, the co-efficient of response of a material being defined as the ratio of energy absorbed in the material to energy absorbed in human body tissues. Suitable alloy compositions are by weight:- (1) Be 81-89%, preferably 85 \sB 0.5% A1 remainder (2) Be 77-85%, preferably 81 \sB 0.5% Mg remainder (3) Be 84-92%, preferably 88 \sB 0.5% Si remainder (4) Be 85.35% A1 13.25% Si 1.4%
GB48505/66A 1965-11-16 1966-10-28 Ionization chamber Expired GB1123267A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR38657A FR1481941A (en) 1965-11-16 1965-11-16 Ionization chamber

Publications (1)

Publication Number Publication Date
GB1123267A true GB1123267A (en) 1968-08-14

Family

ID=8592649

Family Applications (1)

Application Number Title Priority Date Filing Date
GB48505/66A Expired GB1123267A (en) 1965-11-16 1966-10-28 Ionization chamber

Country Status (11)

Country Link
US (1) US3538369A (en)
BE (1) BE688875A (en)
CH (1) CH465073A (en)
DE (1) DE1539828A1 (en)
ES (1) ES333426A1 (en)
FR (1) FR1481941A (en)
GB (1) GB1123267A (en)
IL (1) IL26783A (en)
LU (1) LU52333A1 (en)
NL (1) NL6616050A (en)
SE (1) SE324411B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0670912A1 (en) * 1993-09-03 1995-09-13 Nuclear Metals, Inc. Light-weight, high strength beryllium-aluminum

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5056129A (en) * 1989-09-12 1991-10-08 The United States Of America As Represented By The United States Department Of Energy Apparatus for monitoring X-ray beam alignment

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2193364A (en) * 1936-06-06 1940-03-12 Perosa Corp Process for obtaining beryllium and beryllium alloys
US2573999A (en) * 1947-01-27 1951-11-06 Victoreen Instr Company Ionization chamber
US2639389A (en) * 1949-12-22 1953-05-19 Ole G Landsverk Pocket ionization chamber
US3067331A (en) * 1957-05-24 1962-12-04 Licentia Gmbh Pocket dosimeter
FR1361947A (en) * 1963-03-14 1964-05-29 Commissariat Energie Atomique Beryllium-magnesium alloy

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0670912A1 (en) * 1993-09-03 1995-09-13 Nuclear Metals, Inc. Light-weight, high strength beryllium-aluminum
EP0670912A4 (en) * 1993-09-03 1995-12-27 Nuclear Metals Inc Light-weight, high strength beryllium-aluminum.

Also Published As

Publication number Publication date
NL6616050A (en) 1967-05-17
US3538369A (en) 1970-11-03
DE1539828A1 (en) 1970-10-15
SE324411B (en) 1970-06-01
LU52333A1 (en) 1967-01-10
FR1481941A (en) 1967-05-26
CH465073A (en) 1968-11-15
IL26783A (en) 1970-05-21
BE688875A (en) 1967-03-31
ES333426A1 (en) 1968-12-01

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