Characterization of stochastic noise and post-irradiation density growth for reflective-type radiochromic film in therapeutic photon beam dosimetry
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- 作者：Takeshi Kamomaea ; Masataka Oitab ; oita-m@cc.okayama-u.ac.jp" class="auth_mail" title="E-mail the corresponding author ; Naoki Hayashic ; Motoharu Sasakid ; Hideki Aoyamae ; Hiroshi Oguchif ; Mariko Kawamurag ; Hajime Monzenh ; Yoshiyuki Itoha ; Shinji Naganawag
- 关键词：Radiochromic film ; Stochastic noise ; Post-irradiation density growth ; Dosimetric uncertainty
- 刊名：Physica Medica
- 出版年：2016
- 出版时间：October 2016
- 年：2016
- 卷：32
- 期：10
- 页码：1314-1320
- 全文大小：2466 K
文摘
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We evaluated the dosimetric uncertainty of the reflective-type radiochromic film.
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The sharp increase in the pixel value occurred within the 3 h after irradiation.
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The uncertainty of the stochastic noise was independent of elapsed time.
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The uncertainty of the density growth was decreased within 1 h after irradiation.
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Total uncertainty decreased 1 h after irradiation and remained constant afterward.