GB690409A - Improvements in and relating to electroscopes - Google Patents

Improvements in and relating to electroscopes

Info

Publication number
GB690409A
GB690409A GB1031151A GB1031151A GB690409A GB 690409 A GB690409 A GB 690409A GB 1031151 A GB1031151 A GB 1031151A GB 1031151 A GB1031151 A GB 1031151A GB 690409 A GB690409 A GB 690409A
Authority
GB
United Kingdom
Prior art keywords
tube
graticule
insulated
fibre
loop
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
GB1031151A
Inventor
Donald Fenn Burnett
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.)
British Optical & Prec Enginee
Original Assignee
British Optical & Prec Enginee
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 British Optical & Prec Enginee filed Critical British Optical & Prec Enginee
Priority to GB1031151A priority Critical patent/GB690409A/en
Publication of GB690409A publication Critical patent/GB690409A/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
    • H01J47/04—Capacitive ionisation chambers, e.g. the electrodes of which are used as electrometers

Landscapes

  • Measurement Of Radiation (AREA)

Abstract

690,409. Dosimeters. BRITISH OPTICAL & PRECISION ENGINEERS, Ltd. Jan. 31, 1952 [May 2, 1951], No. 10311/51. Class 37. An electroscope for measuring a degree of ionization comprises an outer tube 1 containing a shorter, second tube 2 incorporating a microscope 6, 7 with a scaled graticule 8, and a wire support 3 carrying a fibre loop 4, the respective distances being such that the loop 4 is focused on the graticule 8 when viewed from the eyepiece 5. The support 3 and fibre 4 are associated with a fixed, insulated, cylindrical electrode 12, which may be charged through a rod 15 by an insulated, spring-loaded plunger 18, mounted in transparent discs 16, 19 to allow ingress of light from the further end 20 of the tube 1. The upper part 11 of the tube 1 constitutes an ionization chamber.
GB1031151A 1951-05-02 1951-05-02 Improvements in and relating to electroscopes Expired GB690409A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1031151A GB690409A (en) 1951-05-02 1951-05-02 Improvements in and relating to electroscopes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1031151A GB690409A (en) 1951-05-02 1951-05-02 Improvements in and relating to electroscopes

Publications (1)

Publication Number Publication Date
GB690409A true GB690409A (en) 1953-04-22

Family

ID=9965538

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1031151A Expired GB690409A (en) 1951-05-02 1951-05-02 Improvements in and relating to electroscopes

Country Status (1)

Country Link
GB (1) GB690409A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3752985A (en) * 1970-02-09 1973-08-14 Com Al En Atomique Portable detector for dosimetry of x and gamma radiation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3752985A (en) * 1970-02-09 1973-08-14 Com Al En Atomique Portable detector for dosimetry of x and gamma radiation

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