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21.发明授权公开(公告)号：US07190649B2
公开(公告)日：2007-03-13
申请号：US10633654
申请日：2003-08-05
IPC分类号： G11B7/00
CPC分类号： B82Y10/00 , C30B15/00 , C30B15/04 , C30B29/20 , G11B7/00455 , G11B7/0052 , G11B7/00552 , G11B7/13922 , G11B7/14 , G11B7/24088 , G11B7/243 , G11B2007/0009 , G11B2007/2431 , G11B2007/2432
摘要： The present invention provides methods and apparatuses for writing information to, reading information from, and erasing information on a luminescent data storage medium comprising Al2O3. The method includes writing and erasing of the information using photoionization via sequential two-photon absorption and non-destructive reading the information using one-photon absorption and confocal fluorescent detection. The apparatuses for writing and reading the information incorporate confocal detection and spherical aberration correction for multilayer volumetric fluorescent data storage. The methods also allow multilevel recording and readout of information for increased storage capacity.
摘要翻译： 本发明提供了用于向包括Al 2 O 3 N 3的发光数据存储介质写入信息，读取信息和从中擦除信息的方法和装置。 该方法包括通过使用单光子吸收和共聚焦荧光检测的顺序双光子吸收和非破坏性读取信息的光电离来写入和擦除信息。 用于写入和读取信息的装置包括用于多层体积荧光数据存储的共焦检测和球面像差校正。 这些方法还允许多级记录和读出信息以增加存储容量。
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22.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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公开(公告)号：US07964854B2
公开(公告)日：2011-06-21
申请号：US12908043
申请日：2010-10-20
IPC分类号： G01J1/58
摘要： A method of determining the doses of neutrons, gamma and X-ray photons, beta, alpha and other ionizing radiations using a method of image processing in spatial and frequency domain that produces parameters that are related to the radiation dose absorbed in a luminescent material. Portions of the luminescent material may be covered by different converters to allow for doses of different radiations to be discriminated.
摘要翻译： 使用在空间和频域中的图像处理方法来确定与发光材料中吸收的辐射剂量相关的参数的中子，γ和X射线光子，β，α和其他电离辐射的剂量的方法。 发光材料的一部分可以由不同的转换器覆盖，以允许区分不同辐射的剂量。
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公开(公告)号：US07943911B2
公开(公告)日：2011-05-17
申请号：US12908051
申请日：2010-10-20
IPC分类号： G01T5/00
摘要： A method of determining the doses of neutrons, gamma and X-ray photons, beta, alpha and other ionizing radiations using a method of image processing in spatial and frequency domain that produces parameters that are related to the radiation dose absorbed in a luminescent material. Portions of the luminescent material may be covered by different converters to allow for doses of different radiations to be discriminated.
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公开(公告)号：US07902525B2
公开(公告)日：2011-03-08
申请号：US12258035
申请日：2008-10-24
IPC分类号： G01J1/58
摘要： A method of determining the doses of neutrons, gamma and X-ray photons, beta, alpha and other ionizing radiations using a method of image processing in spatial and frequency domain that produces parameters that are related to the radiation dose absorbed in a luminescent material. Portions of the luminescent material may be covered by different converters to allow for doses of different radiations to be discriminated.
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26.发明授权Method of preparing detection materials for use in UV detection using phototransferred thermoluminescence 失效使用光转移热发光制备用于紫外检测的检测材料的方法公开(公告)号：US06414324B1
公开(公告)日：2002-07-02
申请号：US09309315
申请日：1999-05-11
IPC分类号： G01J500
CPC分类号： G01J1/58
摘要： The instant invention teaches a method of preparing a luminescent detecting material for use in UV dosimetry which utilizes phototransferred luminescence. The detecting material has a set of shallow dosimetry traps for trapping electronic charge carriers, which are thermally released upon heating to a first temperature, and a set of deep traps for trapping electronic charge carriers, which charge carriers are released upon heating to a second temperature. The detecting material is prepared by irradiating the detecting material to fill the shallow and deep traps with charge carriers, heating the material to release charge carriers from the shallow traps, and then cooling the material. When the detecting material is subsequently exposed to ultraviolet light a proportion of charge carriers will be released from the deep traps to be retrapped in the shallow traps, thereby allowing for the measurement of phototransferred luminescence by thermal or optical stimulation.
摘要翻译： 本发明教导了一种制备利用光转移发光的UV剂量测定中使用的发光检测材料的方法。 检测材料具有一组用于捕获电子载流子的浅剂量测定阱，其在加热到第一温度时被热释放，以及用于捕获电子载流子的一组深陷阱，该电荷载体在加热至第二温度时被释放 。 通过用检测材料照射检测材料，用电荷载体填充浅陷阱和深陷阱，加热材料以从浅陷阱释放电荷载体，然后冷却材料。 当检测材料随后暴露于紫外线时，电荷载体的一部分将从深陷阱释放出来，以被重新捕获在浅陷阱中，从而允许通过热或光刺激测量光转移发光。
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27.发明授权Method for determining an unknown absorbed dose of radiation using optically stimulated luminescence 失效使用光学刺激发光来确定辐射的未知吸收剂量的方法
公开(公告)号：US5892234A
公开(公告)日：1999-04-06
申请号：US710780
申请日：1996-09-20
摘要： A bimodal method for determining an unknown absorbed dose of radiation. An irradiated material is illuminated with ultraviolet or visible light and the luminescence which is emitted from the material is detected. The illuminating light is pulsed, with pulse widths varying from 1 ns to 500 ms. The luminescence emission from dosimetric traps is monitored after a delay following the end of the illumination pulse. The integrated luminescence signal is related to the initial absorbed dose of radiation and thus may be used to calculate the unknown absorbed dose after calibration. In a first mode, the material is completely detrapped--that is, all the dosimetric traps are emptied by the illumination beam. In a second mode the number of illumination pulses, each being followed by the time delay and by periods during which the luminescence signal is detected, is selected such that only a portion of the radiation-induced luminescence from the material is extracted.
摘要翻译： 用于确定未知吸收辐射剂量的双峰方法。 照射的材料用紫外线或可见光照射，并且检测从材料发射的发光。 照明光被脉冲，脉冲宽度从1ns到500ms变化。 在照射脉冲结束后的延迟后监测剂量测定阱的发光。 集成的发光信号与辐射的初始吸收剂量有关，因此可用于计算校准后未知的吸收剂量。 在第一模式中，材料被完全去除，也就是说，所有的剂量捕获器被照明光束排空。 在第二模式中，选择每个跟随着时间延迟的照明脉冲的数量和检测发光信号的周期，使得仅提取来自材料的辐射诱发的发光的一部分。
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