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1.发明授权公开(公告)号：US06936830B2
公开(公告)日：2005-08-30
申请号：US10852584
申请日：2004-05-24
CPC分类号： G01T1/105
摘要： There is provided a system and method for estimating radiation exposure in real time or in near-real time while a dosimeter is being irradiated. In the preferred arrangement, OSL will be used to calculate estimates of the radiation dose rate, preferably by using comparisons between illumination values measured during and after lighting the dosimeter with a laser light of a predetermined frequency. A first preferred embodiment utilizes quasi-equilibrium OSL intensity with periodic stimulation during continuous irradiation. Another preferred embodiment utilizes the amplitude of the transient OSL signal during periodic stimulation. Another preferred embodiment utilizes the difference between the OSL intensity at the end of one stimulation period and the beginning of the next. Finally, another preferred monitors the time constant for the return of the transient OSL signal to equilibrium, following either a change in dose rate or during a periodic optical stimulation.
摘要翻译： 提供了一种用于在照射剂量计时实时或实时地估计辐射暴露的系统和方法。 在优选的布置中，OSL将用于计算辐射剂量率的估计，优选地通过使用用预定频率的激光照射剂量计之间和之后测量的照射值之间的比较。 第一优选实施例在连续照射期间利用具有周期性刺激的准平衡OSL强度。 另一个优选实施例在周期性刺激期间利用瞬态OSL信号的振幅。 另一个优选实施例利用了在一个刺激周期结束时的OSL强度与下一个刺激周期的开始之间的差异。 最后，另一个优选的是监测瞬时OSL信号返回到平衡的时间常数，遵循剂量率的变化或在周期性光学刺激期间。
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2.发明授权Optically stimulated luminescence radiation dosimetry method to determine integrated doses and dose rates and a method to extend the upper limit of measureable absorbed radiation doses during irradiation 失效光学刺激的发光辐射剂量测定方法来确定综合剂量和剂量率，以及延长照射时可测量吸收辐射剂量上限的方法公开(公告)号：US07002163B2
公开(公告)日：2006-02-21
申请号：US10852309
申请日：2004-05-24
IPC分类号： G01T1/10
CPC分类号： G01T1/105
摘要： There is provided herein a system and method for obtaining measurements of radiation exposure in real time using OSL and for obtaining improved accurate OSL measurements over a greater range of radiation exposures. In a preferred embodiment a signal-versus-dose response is obtained from an OSL dosimeter that is linear over all doses and does not exhibit saturation effects. The desired response is preferably calculated from the measured OSL-versus-time response from a suitable dosimeter obtained during irradiation. To obtain the desired response from the measured OSL data each measured OSL point has to be corrected for the depletion of the trapped electron concentration that occurs during each illumination period.
摘要翻译： 本文提供了一种用于使用OSL实时获得辐射暴露测量并在更大范围的辐射照射下获得改进的精确OSL测量的系统和方法。 在优选实施方案中，从所有剂量线性的OSL剂量计获得信号对剂量响应，并且不显示饱和效应。 期望的响应优选地从在照射期间获得的合适的剂量计的测量的OSL对时间响应计算。 为了从测量的OSL数据获得所需的响应，每个测量的OSL点必须被校正以消除在每个照明周期期间发生的被俘获的电子浓度。
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