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首页> 外文期刊>Radiation Protection Dosimetry >GAFCHROMIC FILM AS A FAST VISUAL INDICATOR OF RADIATION EXPOSURE OF FIRST RESPONDERS
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GAFCHROMIC FILM AS A FAST VISUAL INDICATOR OF RADIATION EXPOSURE OF FIRST RESPONDERS

机译：镀金膜作为快速响应的第一响应者辐射暴露的指示

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摘要

Three types of Gafchromic films have been studied to investigate their potential for use as a visually readable dosemeter for persons acting as first responders in connection with radiological or nuclear emergencies. The two most sensitive film types show a pronounced variation in sensitivity by photon energy and are therefore not suitable for use in cases of unknown exposures. The third film type tested (RTQA2), which is intended for quality control in radiation therapy has a sensitivity that is independent of the radiation quality, and is therefore considered as the most optimal for visual reading in situ. Tests carried out on a group of 10 human observers showed that absorbed doses down to 40 niGy can be detected by the eye. Read by a portable densitometer, qualitative absorbed dose estimates down to 9 mCy can be achieved. The colour change is obtained instantaneously, giving first responders immediate information about the presence of beta-, gamma- and X-ray radiation.
机译：已经研究了三种类型的Gafchromic胶片，以研究其用作与放射或核紧急情况有关的第一反应人员的视觉可读剂量计的潜力。两种最敏感的胶片类型显示出光子能量在感光度上的明显变化，因此不适用于未知曝光的情况。被测试用于放射治疗质量控制的第三种胶片类型（RTQA2）具有与放射质量无关的灵敏度，因此被认为是最适合现场视觉阅读的胶片。在由10个人类观察者组成的小组中进行的测试表明，眼睛可以检测到低至40 niGy的吸收剂量。通过便携式密度计读取，可以实现低至9 mCy的定性吸收剂量估算。可以立即获得颜色变化，从而为第一响应者提供有关β，γ和X射线辐射的即时信息。

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  • 来源
    《Radiation Protection Dosimetry》 |2012年第1期|p.119-123|共5页
  • 作者

    UEnal OEren; Christopher L. Raeaef; Soeren Mattsson;

  • 作者单位

    Medical Radiation Physics, Department of Clinical Sciences, Lund University, Skane University Hospital,SUS Malmo, SE-205 02 Malmo, Sweden;

    Medical Radiation Physics, Department of Clinical Sciences, Lund University, Skane University Hospital,SUS Malmo, SE-205 02 Malmo, Sweden;

    Medical Radiation Physics, Department of Clinical Sciences, Lund University, Skane University Hospital,SUS Malmo, SE-205 02 Malmo, Sweden;

  • 收录信息 美国《科学引文索引》(SCI);美国《化学文摘》(CA);
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  • 正文语种 eng
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