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公开(公告)号：US20170023680A1
公开(公告)日：2017-01-26
申请号：US15218793
申请日：2016-07-25
Applicant: Landauer, Inc.
Inventor： Mark S. Akselrod
IPC: G01T1/10
Abstract: A portable and wearable radiation dosimeter has a wearable housing.There is an optically stimulated luminescent (OSL) radiation sensing element removably mounted in the wearable housing so that the OSL radiation sensing element can be removed and read by an external OSL reader. There is also a fluorescent nuclear track detector (FNTD) radiation sensing element removably mounted in the wearable housing so that the FNTD radiation sensing element can be removed and read by an external FNTD reader. At least one on-board reader for at least one of the OSL and FNTD radiation sensing element for determining information about the radiation exposure of the sensing element while the sensor remains mounted in the housing, preferably using a different mode of reading than either OSL or FNTD.
Abstract translation: 光学刺激的发光（OSL）辐射感测元件可移除地安装在可穿戴的外壳中，使得OSL辐射感测元件可以被外部OSL读取器移除和读取。 还有一个可拆卸地安装在可穿戴外壳中的荧光核轨道检测器（FNTD）辐射感测元件，以便可以通过外部FNTD读取器去除和读取FNTD辐射感测元件。 用于至少一个OSL和FNTD辐射感测元件的至少一个板上读取器，用于在传感器保持安装在壳体中时确定关于感测元件的辐射照射的信息，优选地使用不同于OSL或OSL的读取模式 FNTD。
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公开(公告)号：US10018733B2
公开(公告)日：2018-07-10
申请号：US15218793
申请日：2016-07-25
Applicant: Landauer, Inc.
Inventor： Mark S. Akselrod
Abstract: A portable and wearable radiation dosimeter has a wearable housing.There is an optically stimulated luminescent (OSL) radiation sensing element removably mounted in the wearable housing so that the OSL radiation sensing element can be removed and read by an external OSL reader. There is also a fluorescent nuclear track detector (FNTD) radiation sensing element removably mounted in the wearable housing so that the FNTD radiation sensing element can be removed and read by an external FNTD reader. At least one on-board reader for at least one of the OSL and FNTD radiation sensing element for determining information about the radiation exposure of the sensing element while the sensor remains mounted in the housing, preferably using a different mode of reading than either OSL or FNTD.
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Patent Agency Ranking
公开(公告)号：US20180149762A1
公开(公告)日：2018-05-31
申请号：US15828354
申请日：2017-11-30
Applicant: Landauer, Inc.
Inventor： Mark S. Akselrod , Jonathan Harrison
Abstract: A method of determining radiation exposure during a criticality excursion of a dosimeter having at least one fluorescent nuclear track detector (FNTD) element includes determining the power spectrum integral (PSI) value of the fluorescent images obtained from FNTD element at each of a plurality of different depths using laser induced fluorescent microscopy; normalizing the depth profile to the shallowest depth; fitting a double exponential function to the normalized depth profile; determining the median neutron energy from the E=f(1/e) function; and determining a neutron energy dose correction factor (NCF) from the NCF=f(E) function. The neutron dose, D, can then be calculated by dividing absolute value of the neutron-induced PSI by a sensitivity factor S and multiplying it by the neutron energy dose correction factor NCF.
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公开(公告)号：US09000381B2
公开(公告)日：2015-04-07
申请号：US14242125
申请日：2014-04-01
Applicant: Landauer, Inc.
Inventor： Mark S. Akselrod , Kent J. Dillin
IPC: G01T1/10
CPC classification number: G01T1/10
Abstract: Described is a method for determination of an unknown radiation dose to which an optically stimulated luminescence (OSL) sensor has been exposed utilizing a pulsed optically stimulated luminescence (POSL) technique and a battery operated portable instrument.
Abstract translation: 描述了使用脉冲光学刺激发光（POSL）技术和电池操作的便携式仪器来确定已经暴露了光学刺激的发光（OSL）传感器的未知辐射剂量的方法。
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5.发明授权Method and apparatus for radiation dosimetry utilizing fluorescent imaging with precision correction 有权利用荧光成像进行精密校正的辐射剂量学方法和装置公开(公告)号：US08969790B1
公开(公告)日：2015-03-03
申请号：US14173890
申请日：2014-02-06
Applicant: Landauer, Inc.
Inventor： Mark S. Akselrod , James Bartz , Fujian Ding , Vasiliy V. Fomenko
Abstract: A method comprising the following steps: (a) adjusting a radiation dose measurement for a fluorescent nuclear track detector based on a plurality of fluorescence contrast images for the fluorescent nuclear track detector to thereby produce a calibrated radiation dose measurement, and (b) displaying the calibrated radiation dose measurement to a user and/or saving the calibrated radiation dose measurement to a storage medium, wherein the fluorescent nuclear track detector comprises a luminescent material, wherein the radiation dose measurement is based on one or more fluorescent light measurements produced by fluorescent imaging of the fluorescent nuclear track detector using excitation light from a laser having a first wavelength, and wherein the plurality of fluorescence contrast images are produced by illuminating the fluorescent nuclear track detector with excitation light having a second wavelength.
Abstract translation: 一种方法，包括以下步骤：（a）基于用于荧光核磁道检测器的多个荧光对比图像来调整荧光核磁道检测器的辐射剂量测量，从而产生校准的辐射剂量测量，以及（b）显示 对用户进行校准的辐射剂量测量和/或将校准的辐射剂量测量值保存到存储介质，其中所述荧光核轨迹检测器包括发光材料，其中所述辐射剂量测量基于由荧光成像产生的一个或多个荧光测量 的荧光核磁道检测器，其使用来自具有第一波长的激光的激发光，并且其中通过用具有第二波长的激发光照射所述荧光核轨迹检测器来产生所述多个荧光对比图像。
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公开(公告)号：US08785887B1
公开(公告)日：2014-07-22
申请号：US14012072
申请日：2013-08-28
Applicant: Landauer, Inc.
Inventor： R. Craig Yoder , Mark S. Akselrod , Kent J. Dillin , Vasiliy V. Fomenko , David F. Johnson , Yoshikazu Tatsumi , Tse-Min Lo
IPC: H05B33/00
Abstract: Described is a portable dosimeter reader that is small in size and light in weight.
Abstract translation: 描述的是便携式剂量计读取器，其尺寸小并且重量轻。
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公开(公告)号：US08921810B2
公开(公告)日：2014-12-30
申请号：US14246563
申请日：2014-04-07
Applicant: Landauer, Inc.
Inventor： R. Craig Yoder , Mark S. Akselrod , Kent J. Dillin , Vasiliy V. Fomenko , David F. Johnson , Yoshikazu Tatsumi , Tse-Min Lo
Abstract: Described is a portable dosimeter reader that is small in size and light in weight.
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