Ahmad Munir, Chen Zhe, Song Haijun, Deng Jun, Nath Ravinder
Department of Therapeutic Radiology, Yale University School of Medicine, P.O. Box 208040, New Haven, CT 06520, USA.
Radiat Prot Dosimetry. 2006;120(1-4):159-62. doi: 10.1093/rpd/ncj006. Epub 2006 Apr 27.
A sensitometric study of Kodak XV and EDR-2 radiographic films (Eastman Kodak Company, Rochester, NY) was performed using photons ranging from 75 kV to 18 MV and electrons ranging from 6 to 20 MeV. To investigate the applicability of the EDR-2 film for clinical radiation dosimetry, percentage depth-doses, profiles and distributions in open and dynamically wedged fields were measured using film and compared with data from a linear diode. Moreover, conventional quality assurance dose parameters were measured, including open-field dose profiles to determine flatness and symmetry of photon and electron beams. Finally, film was employed to validate dose distributions produced by complex computerised treatment planning techniques. Our conclusion is that the EDR-2 film is an effective tool for relative dosimetry of photon and electron beams.
使用75 kV至18 MV的光子和6至20 MeV的电子对柯达XV和EDR - 2射线胶片（纽约罗切斯特伊士曼柯达公司）进行了感光测定研究。为了研究EDR - 2胶片在临床放射剂量测定中的适用性，使用胶片测量了开放野和动态楔形野中的百分深度剂量、剂量分布曲线和剂量分布，并与线性二极管的数据进行了比较。此外，还测量了传统的质量保证剂量参数，包括开放野剂量分布曲线，以确定光子束和电子束的平坦度和对称性。最后，使用胶片来验证复杂的计算机治疗计划技术产生的剂量分布。我们的结论是，EDR - 2胶片是光子束和电子束相对剂量测定的有效工具。
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