GB495215A - A new or improved device for reducing the effects of secondary and scattered x-radiation during x-ray exposures - Google Patents

A new or improved device for reducing the effects of secondary and scattered x-radiation during x-ray exposures

Info

Publication number
GB495215A
GB495215A GB1922037A GB1922037A GB495215A GB 495215 A GB495215 A GB 495215A GB 1922037 A GB1922037 A GB 1922037A GB 1922037 A GB1922037 A GB 1922037A GB 495215 A GB495215 A GB 495215A
Authority
GB
United Kingdom
Prior art keywords
arm
diaphragm
pivot
reducing
effects
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
GB1922037A
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.)
SYDNEY CHARLES COZENS
Original Assignee
SYDNEY CHARLES COZENS
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 SYDNEY CHARLES COZENS filed Critical SYDNEY CHARLES COZENS
Priority to GB1922037A priority Critical patent/GB495215A/en
Publication of GB495215A publication Critical patent/GB495215A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21K—TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES
    • G21K1/00—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating
    • G21K1/02—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating using diaphragms, collimators
    • G21K1/025—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating using diaphragms, collimators using multiple collimators, e.g. Bucky screens; other devices for eliminating undesired or dispersed radiation

Abstract

495,215. R÷ntgen ray apparatus. COZENS, S. C. July 12, 1937, No. 19220. [Class 98 (i)] A reciprocating diaphragm or grid a for reducing the effects of secondary and scattered radiation during X-ray exposures, is mounted in a frame b, and is operated by a lever d pivoted at e to a fixed arm e<1>. The lever d is slotted and engages at one end a pivot g carried by an arm g<1> fixed to the diaphragm, and at the other end a pivot f carried by an arm f<1> fixed to a rack h moving on a guide rod j. The end of the arm f moves on a guide rod k. The rack h is actuated by an electric motor m through gearbox m<1> and pinion m<2>, and the motor is reversed at each stroke of the diaphragm by means of a projecting bracket which engages a switch arm o which reverses the electrical connections. Bells v are sounded by strikers t to indicate when the exposure may be made. To vary the speed of the diaphragm the arm e<1> is adjustable relatively to the pivot f by moving in a slot in the frame associated with an indicating scale e<3>.
GB1922037A 1937-07-12 1937-07-12 A new or improved device for reducing the effects of secondary and scattered x-radiation during x-ray exposures Expired GB495215A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1922037A GB495215A (en) 1937-07-12 1937-07-12 A new or improved device for reducing the effects of secondary and scattered x-radiation during x-ray exposures

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1922037A GB495215A (en) 1937-07-12 1937-07-12 A new or improved device for reducing the effects of secondary and scattered x-radiation during x-ray exposures

Publications (1)

Publication Number Publication Date
GB495215A true GB495215A (en) 1938-11-09

Family

ID=10125718

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1922037A Expired GB495215A (en) 1937-07-12 1937-07-12 A new or improved device for reducing the effects of secondary and scattered x-radiation during x-ray exposures

Country Status (1)

Country Link
GB (1) GB495215A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2733352A (en) * 1956-01-31 billin

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2733352A (en) * 1956-01-31 billin

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