FR2327554A1 - Appts. for reading glass dosimeters - where ultraviolet lamp irradiates glass sphere and photomultiplier tube measures fluorescence - Google Patents

Appts. for reading glass dosimeters - where ultraviolet lamp irradiates glass sphere and photomultiplier tube measures fluorescence

Info

Publication number
FR2327554A1
FR2327554A1 FR7531150A FR7531150A FR2327554A1 FR 2327554 A1 FR2327554 A1 FR 2327554A1 FR 7531150 A FR7531150 A FR 7531150A FR 7531150 A FR7531150 A FR 7531150A FR 2327554 A1 FR2327554 A1 FR 2327554A1
Authority
FR
France
Prior art keywords
sphere
photomultiplier tube
dosimeter
glass
appts
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.)
Withdrawn
Application number
FR7531150A
Other languages
French (fr)
Inventor
Henri Francois
Maurice Verna
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.)
Desmarquest et CEC SA
Original Assignee
Desmarquest et CEC SA
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 Desmarquest et CEC SA filed Critical Desmarquest et CEC SA
Priority to FR7531150A priority Critical patent/FR2327554A1/en
Publication of FR2327554A1 publication Critical patent/FR2327554A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
    • G01T1/02—Dosimeters
    • G01T1/10—Luminescent dosimeters
    • G01T1/105—Read-out devices

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)
  • Measurement Of Radiation (AREA)

Abstract

The novelty is that the dosimeter is mounted on a hollow support which can be located in a recess in a frame carrying the UV lamp; and a filter is located in front of the photomultiplier tube to blockout the UV radiation which has passed through the support and is reflected by the dosimeter. The dosimeter is pref. a sphere with a polished external surface, held by a reflecting mirror in the support which has a side window; the UV light reaching the mirror is reflected towards the glass sphere at 90 degrees to the fluorescence emitted by the sphere via the window and towards the photomultiplier. Alternatively, several photomultiplier tubes may be uniformly distributed at an oblique angle w.r.t. the UV radiation from the lamp. The dosimeter may also have an ovoid or conical shape. After gamma radiation for example, the sphere, made of metaphosphate glass, fluoresces when exposed to UV light, the fluorescence being measured via a photomultiplier tube.
FR7531150A 1975-10-10 1975-10-10 Appts. for reading glass dosimeters - where ultraviolet lamp irradiates glass sphere and photomultiplier tube measures fluorescence Withdrawn FR2327554A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7531150A FR2327554A1 (en) 1975-10-10 1975-10-10 Appts. for reading glass dosimeters - where ultraviolet lamp irradiates glass sphere and photomultiplier tube measures fluorescence

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7531150A FR2327554A1 (en) 1975-10-10 1975-10-10 Appts. for reading glass dosimeters - where ultraviolet lamp irradiates glass sphere and photomultiplier tube measures fluorescence

Publications (1)

Publication Number Publication Date
FR2327554A1 true FR2327554A1 (en) 1977-05-06

Family

ID=9161079

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7531150A Withdrawn FR2327554A1 (en) 1975-10-10 1975-10-10 Appts. for reading glass dosimeters - where ultraviolet lamp irradiates glass sphere and photomultiplier tube measures fluorescence

Country Status (1)

Country Link
FR (1) FR2327554A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4302678A (en) * 1980-01-25 1981-11-24 Magnaflux Corporation Fluorescent standard for scanning devices

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4302678A (en) * 1980-01-25 1981-11-24 Magnaflux Corporation Fluorescent standard for scanning devices

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Legal Events

Date Code Title Description
ST Notification of lapse