JPS6082300U

JPS6082300U - X-ray composite collimator

Info

Publication number: JPS6082300U
Application number: JP17337883U
Authority: JP
Inventors: 関口　一三
Original assignee: 株式会社日立メデイコ
Priority date: 1983-11-09
Filing date: 1983-11-09
Publication date: 1985-06-07

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図Ａ、　Ｂは、従来の回転選択式Ｘ線複合コリメー
タの概略構成を示す図、第２図乃至第６図は、本考案の
一実施例の構成を説明するための図であり、第２図はそ
の断面図、第３図は、第２図のＡ−Ａ切断線における断
面図、第４図は、第２図のの正面図、第５図は、第１円
板の平面図、第６図は、第２円板の平面図である。１１・・・Ｘ線複合コリメータ、１２・・・Ｘ線複合コ
リメータの回転軸、１３・・・筐体、１４・・・ベアリ
ング、１５・・・大歯車、１６・・・小歯車、１７・・
・パルスモータ、１８・・・パルスモータの回転軸、１
９・・・コリメータ設定用第１円板、１９Ａ・・・位置
検出用長孔、１９Ｂ・・・・・・設定位置微調整用目盛
、２ｏ・・・止めネジ、２１・・・コリメータ設定位置
微調整用第２円板、２１Ａ、２１Ｂ・・・設定位置微調
整用長孔、２１Ｃ・・・位置検出用小孔、２１Ｄ・・・
設定位置微調整用目盛、２２・・・設定位置微調整用止
めネジ、２３・・・フォトマイクロセンサ。FIGS. 1A and 1B are diagrams showing a schematic configuration of a conventional rotation-selective X-ray composite collimator, and FIGS. 2 to 6 are diagrams for explaining the configuration of an embodiment of the present invention. Fig. 2 is a sectional view thereof, Fig. 3 is a sectional view taken along the line A-A in Fig. 2, Fig. 4 is a front view of Fig. 2, and Fig. 5 is a plane view of the first disk. FIG. 6 is a plan view of the second disk. DESCRIPTION OF SYMBOLS 11... X-ray compound collimator, 12... Rotating shaft of X-ray compound collimator, 13... Housing, 14... Bearing, 15... Large gear, 16... Small gear, 17...・
・Pulse motor, 18... Pulse motor rotation axis, 1
9... First disc for collimator setting, 19A... Long hole for position detection, 19B... Scale for fine adjustment of setting position, 2o... Set screw, 21... Collimator setting position Second disc for fine adjustment, 21A, 21B...Long hole for fine adjustment of set position, 21C...Small hole for position detection, 21D...
Scale for fine adjustment of setting position, 22... Set screw for fine adjustment of setting position, 23... Photo microsensor.

Claims

[Scope of utility model registration request]

In a rotary selection type X-ray composite collimator having a plurality of slits with different widths, a first disc for collimator setting is removably fixed to the rotation axis of the collimator, and a collimator setting position having a diameter concentric with the first disc is fixed to the rotation axis of the collimator. A second disk for fine adjustment is provided on a rotating slide, and small holes for aligning the center line of the collimator with the center line of the X-ray beam are provided at predetermined positions of the first and second disks, and the holes have different pitches. A rotary selection type X-ray composite collimator characterized by having a scale for fine adjustment of the setting position.