JPS5676200A - X-ray intermittent exposure device - Google Patents

X-ray intermittent exposure device

Info

Publication number
JPS5676200A
JPS5676200A JP15243079A JP15243079A JPS5676200A JP S5676200 A JPS5676200 A JP S5676200A JP 15243079 A JP15243079 A JP 15243079A JP 15243079 A JP15243079 A JP 15243079A JP S5676200 A JPS5676200 A JP S5676200A
Authority
JP
Japan
Prior art keywords
shielding plates
open
close
cams
pulley
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.)
Pending
Application number
JP15243079A
Other languages
Japanese (ja)
Inventor
Masayoshi Fujita
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP15243079A priority Critical patent/JPS5676200A/en
Publication of JPS5676200A publication Critical patent/JPS5676200A/en
Pending 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
    • G21K1/04—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating using diaphragms, collimators using variable diaphragms, shutters, choppers

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Apparatus For Radiation Diagnosis (AREA)

Abstract

PURPOSE:To perform the operation of intermittent exposure of X-ray irradiation with simplified constitution, by arranging at least two sheets of open-close movable shielding plates between an X-ray focus and X-ray irradiation field and actuating these plates. CONSTITUTION:When an electric motor 13 is driven rotating, a shaft 9 is rotated further this rotating motion is transmitted to a pulley 8 and cam 10 and a pulley 8' and cam 10'. The rotating motion of the cams 10, 10' actuates two sheets of shielding plates 3, 3' to open and close them. That is, the shielding plates 3, 3' are always urged toward a direction of opening by tension springs 6, 6' respectively provided at left and right positions, in this way protrusive tips 3a, 3a' of said shielding plates make their relative movement to the left and right along protruded and hollowed parts in the periphery of the cams 10, 10', thus the open-close operation of the shielding plates can be performed. The state of said open-close operation is detected by a phototransistor 17, converted into an electric signal and processed.
JP15243079A 1979-11-27 1979-11-27 X-ray intermittent exposure device Pending JPS5676200A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15243079A JPS5676200A (en) 1979-11-27 1979-11-27 X-ray intermittent exposure device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15243079A JPS5676200A (en) 1979-11-27 1979-11-27 X-ray intermittent exposure device

Publications (1)

Publication Number Publication Date
JPS5676200A true JPS5676200A (en) 1981-06-23

Family

ID=15540347

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15243079A Pending JPS5676200A (en) 1979-11-27 1979-11-27 X-ray intermittent exposure device

Country Status (1)

Country Link
JP (1) JPS5676200A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5954199A (en) * 1982-09-22 1984-03-28 株式会社東芝 High speed shutter unit
JP2006020675A (en) * 2004-07-06 2006-01-26 Toshiba Medical Systems Corp X-ray computerized tomography apparatus
JP2007101259A (en) * 2005-09-30 2007-04-19 Beamsense Co Ltd X-ray shutter mechanism, x-ray photographing device equipped with it and x-ray photographing method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5954199A (en) * 1982-09-22 1984-03-28 株式会社東芝 High speed shutter unit
JPH0237680B2 (en) * 1982-09-22 1990-08-27 Tokyo Shibaura Electric Co
JP2006020675A (en) * 2004-07-06 2006-01-26 Toshiba Medical Systems Corp X-ray computerized tomography apparatus
US7123680B2 (en) 2004-07-06 2006-10-17 Toshiba Medical Systems Corporation X-ray computer tomography apparatus
JP4675589B2 (en) * 2004-07-06 2011-04-27 東芝メディカルシステムズ株式会社 X-ray computer tomography equipment
JP2007101259A (en) * 2005-09-30 2007-04-19 Beamsense Co Ltd X-ray shutter mechanism, x-ray photographing device equipped with it and x-ray photographing method

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