A Correction Factor for Effects of Scattered X-rays at Calibration of Ionization Chambers in Low Energy X-ray Standard Fields
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概要
- 論文の詳細を見る
A correction factor ks is related to contributions of scattered photons at calibration in standard X-ray fields. We obtained values of ks for spherical and parallel-plate ionization chambers in low energy X-ray fields experimentally. Signal currents from these chambers were measured using copper plate collimators with different diameter holes to vary the field size. To derive ks values, the measured data were analyzed using a simple model. It was found that the value of ks increases with the increase of the effective energy of X-rays.
- 社団法人 日本原子力学会の論文
- 2007-02-25
著者
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Nohtomi Akihiro
National Institute Of Advanced Industrial Science And Technology (aist) Nmij
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Sakae Takeji
Proton Medical Research Center University Of Tsukuba
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TAKATA Nobuhisa
National Institute of Advanced Industrial Science and Technology (AIST), NMIJ
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Takata Nobuhisa
National Institute Of Advanced Industrial Science And Technology (aist) Nmij
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Sakae Takeji
Proton Medical Research Center (pmrc) University Of Tsukuba
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Takata Nobuhisa
National Inst. Of Advanced Industrial Sci. And Technol. (aist) Nmij
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