JPS6296599U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案の実施例に係る放射線照射装置
の多分割コリメータが全開した状態の断面図、第
２図は全閉した同断面図、第３図は多分割コリメ
ータの各リーフが重なつている状態を示す正面図
、第４図は照射野外のリーフの断面図、第５図は
照射野内のリーフの断面図である。 １ａ，１ｂ……リーフ、２……線源、３……照
射野、４ａ，４ｂ……スベリキー、５……キー溝
、６……多分割コリメータ。 Fig. 1 is a sectional view of the multi-segment collimator of a radiation irradiation device according to an embodiment of the present invention when it is fully open, Fig. 2 is a sectional view of the multi-segment collimator when it is fully closed, and Fig. 3 is a sectional view of the multi-segment collimator with its leaves overlapping each other. FIG. 4 is a sectional view of the leaf outside the irradiation field, and FIG. 5 is a sectional view of the leaf inside the irradiation field. 1a, 1b...Leaf, 2...Radiation source, 3...Irradiation field, 4a, 4b...Slip key, 5...Keyway, 6...Multi-segment collimator.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 放射線照射装置の多分割コリメータにおいて、
線源を中心とした同一円周上で各リーフの互いに
隣り合う摺動面に照射野範囲内に位置するスベリ
キーを設け、照射野範囲外にある各リーフのスベ
リキーの高さと照射野範囲内にある各リーフの各
スベリキーの高さとを異なる高さに設定したこと
を特徴とする放射線照射装置の多分割コリメータ
。 In the multi-segment collimator of radiation irradiation equipment,
Sliding keys located within the irradiation field range are provided on the sliding surfaces of each leaf adjacent to each other on the same circumference centered on the radiation source, and the height of each leaf's slippery key located outside the irradiation field and within the irradiation field range are A multi-segment collimator for a radiation irradiation device, characterized in that the height of each slip key of each leaf is set to a different height.