Li H, Xu Z, Almond P R
Department of Radiation Oncology School of Medicine, James Graham Brown Cancer Center, University of Louisville, KY 40202, USA.
Med Dosim. 1996 Fall;21(3):169-72. doi: 10.1016/0958-3947(96)00023-4.
The sensitometric curves (also known as the characteristic curves, or more commonly as the H-D curves after Hurler and Driffield who first used such curves in 1890 to describe the response of photographic film to light) of three DuPont portal films (CRONEX 10T, 10TL and Ultra-Vision C) in combination with two DuPont cassettes (CRONEX Radiation Therapy and Radiation Therapy Verification) were produced utilizing a 60Co beam and a 18 MV beam. The results are compared with that of a Kodak portal film system (T-Mat G/RA film and X-Onratic V cassette). The sensitometric curves of the DuPont films in the Kodak cassette were also measured. The results show that the Kodak system is superior to the DuPont systems with respect to the imaging quality and the feasibility of film techniques, and that if the DuPont films are used, significant improvements can be made by combining the DuPont films with the Kodak cassette.
利用60钴射线束和18兆伏射线束，得出了三种杜邦定位片（CRONEX 10T、10TL和Ultra-Vision C）与两种杜邦暗盒（CRONEX放射治疗暗盒和放射治疗验证暗盒）组合的感光度曲线（也称为特性曲线，更常见的是H-D曲线，以1890年首次使用此类曲线描述摄影胶片对光响应的Hurler和Driffield命名）。将结果与柯达定位片系统（T-Mat G/RA胶片和X-Onratic V暗盒）的结果进行比较。还测量了柯达暗盒中杜邦胶片的感光度曲线。结果表明，在成像质量和胶片技术可行性方面，柯达系统优于杜邦系统，并且如果使用杜邦胶片，将杜邦胶片与柯达暗盒组合可显著提高性能。
