JPS646898A - Collimator for x-ray tomographic apparatus - Google Patents

Collimator for x-ray tomographic apparatus

Info

Publication number
JPS646898A
JPS646898A JP62163225A JP16322587A JPS646898A JP S646898 A JPS646898 A JP S646898A JP 62163225 A JP62163225 A JP 62163225A JP 16322587 A JP16322587 A JP 16322587A JP S646898 A JPS646898 A JP S646898A
Authority
JP
Japan
Prior art keywords
inspected
collimator
projected
ray shielding
parts
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
JP62163225A
Other languages
Japanese (ja)
Inventor
Shigeru Watanabe
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.)
GE Healthcare Japan Corp
Original Assignee
Yokogawa Medical Systems 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 Yokogawa Medical Systems Ltd filed Critical Yokogawa Medical Systems Ltd
Priority to JP62163225A priority Critical patent/JPS646898A/en
Publication of JPS646898A publication Critical patent/JPS646898A/en
Pending legal-status Critical Current

Links

Landscapes

  • Apparatus For Radiation Diagnosis (AREA)

Abstract

PURPOSE:To prevent an object to be inspected from being subjected to excessive exposing by setting the spread of a fan beam so as to meet the size in the object section of the object to be inspected. CONSTITUTION:Sectorial X-ray shielding plates 12, 13 having a quarter circular shape are freely turnably supported on the extension of the minor axis of a rectangular slit 11 of a collimator. While the X-ray shielding plates 12, 13 are held at an angle theta, the plates are rotationally moved between prescribed positions A1-A2 in conformity with the rotation of a gantry. An occupying part (b) of the projected X-rays including the object section D of the object 6 to be inspected, the occupying parts c1, c2 of the beam for calibration and the parts e1, e2 where the X-rays beams are not projected at all are thereby formed and, therefore, the overexposing to the object 6 to be inspected is averted.
JP62163225A 1987-06-30 1987-06-30 Collimator for x-ray tomographic apparatus Pending JPS646898A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62163225A JPS646898A (en) 1987-06-30 1987-06-30 Collimator for x-ray tomographic apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62163225A JPS646898A (en) 1987-06-30 1987-06-30 Collimator for x-ray tomographic apparatus

Publications (1)

Publication Number Publication Date
JPS646898A true JPS646898A (en) 1989-01-11

Family

ID=15769696

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62163225A Pending JPS646898A (en) 1987-06-30 1987-06-30 Collimator for x-ray tomographic apparatus

Country Status (1)

Country Link
JP (1) JPS646898A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012526568A (en) * 2009-05-13 2012-11-01 ヘルムホルツ・ツェントルム・ミュンヒェン・ドイチェス・フォルシュンクスツェントルム・フューア・ゲズントハイト・ウント・ウムベルト（ゲーエムベーハー） Tomography apparatus and tomography method
DE102017117699A1 (en) 2016-08-05 2018-02-08 Makita Corporation An electric power tool and method for detecting a rebound of an electric power tool from a workpiece
JP2022530285A (en) * 2019-06-28 2022-06-28 コーニンクレッカ フィリップス エヌ ヴェ Cloaking device for use in medical imaging

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012526568A (en) * 2009-05-13 2012-11-01 ヘルムホルツ・ツェントルム・ミュンヒェン・ドイチェス・フォルシュンクスツェントルム・フューア・ゲズントハイト・ウント・ウムベルト（ゲーエムベーハー） Tomography apparatus and tomography method
DE102017117699A1 (en) 2016-08-05 2018-02-08 Makita Corporation An electric power tool and method for detecting a rebound of an electric power tool from a workpiece
JP2022530285A (en) * 2019-06-28 2022-06-28 コーニンクレッカ フィリップス エヌ ヴェ Cloaking device for use in medical imaging

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