面積/周囲長によるTAR計算法の多分割原体コリメータを用いた不整形照射野への適用

DOI

書誌事項

タイトル別名
  • Applicability of Area/Perimeter Method for Determining Tissue-Air Ratios to Irregular Fields Defined by Multi-Split Collimator for Conformation Therapy

この論文をさがす

説明

Central axis tissue-air ratios (TAR) for 4 MV x rays of a large number of square, rectangular and irregular fields defined by a multi-split collimator for conformation therapy were obtained experimentally up to a depth of 25 cm. Families of TAR curves as a function of area at depth, divided by perimeter (A/P) for fixed values of depth were plotted first using the data for square fields. These were then compared with data for irregular fields. When the equivalent perimeter of the field Pe was used, rather than the real perimeter P, the A/P method for determining TAR was found to be applicable within a 2% error up to a 15 cm depth for uneven fields shaped with the multi-split collimator.

収録刊行物

キーワード

詳細情報 詳細情報について

  • CRID
    1390282679648462976
  • NII論文ID
    130001928830
  • DOI
    10.11323/jjmp1981.1.1_11
  • ISSN
    21869847
    02885506
  • 本文言語コード
    ja
  • データソース種別
    • JaLC
    • CiNii Articles
  • 抄録ライセンスフラグ
    使用不可

問題の指摘

ページトップへ