The use of an inexpensive red acetate filter to improve the sensitivity of GAFChromic dosimetry

被引：31

作者：

Odero, DO ^{[1
]}

Gluckman, GR ^{[1
]}

Welsh, K ^{[1
]}

Wlodarczyk, RA ^{[1
]}

Reinstein, LE ^{[1
]}

机构：

[1] SUNY Stony Brook, Dept Radiat Oncol, Stony Brook, NY 11794 USA

来源：

MEDICAL PHYSICS | 2001年 / 28卷 / 07期

关键词：

film digitizer; film digitization; film scanners; film densitometry; film dosimetry; film filters;

D O I：

10.1118/1.1382605

中图分类号：

R8 [特种医学]; R445 [影像诊断学];

学科分类号：

1002 ; 100207 ; 1009 ;

摘要：

The sensitivity of GAFChromic dosimetry using a conventional broad band light source densitometer has significantly been improved twofold using an inexpensive red acetate filter overlay during the densitometric measurements. This thin sheet of red acetate enhances the dosimetric analysis of radiochromic blue image distributions recorded on GAFChromic films. The combination provides higher sensitivity in the optical density measurements than the more expensive He-Ne laser-scanning densitometers. (C) 2001 American Association of Physicists in Medicine.

引用

页码：1446 / 1448

页数：3

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