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    • 41. 发明申请
    • SELF-INDICATING RADIATION ALERT DOSIMETER
    • 自我指示辐射警报剂
    • WO2004077097A3
    • 2005-06-23
    • PCT/US2004005860
    • 2004-02-26
    • JP LAB INCPATEL GORDHANBHAI N
    • PATEL GORDHANBHAI N
    • G01T1/04G01T1/06
    • G01T1/06G01T1/04
    • Described as a self-indicating instant radiation dosimeter (1001) for monitoring high energy radiations, such as X-ray. The dosimeter contains a radiation sensitive, color changing, indicating composition (10), e.g., a diacetylene (R-C=C-C=C-R', where R and R' are substituents groups) or a radiochromic dye, a polymeric binder (20) and optionally a shelf life extender (50) or an activator (40). The radiation sensitive composition (10) changes color instantly when exposed to high energy radiation. The dose is estimated by comparing the color with a color reference chart or more accurately with a spectrophotometer or an optical densitometer. The radiation sensitive composition (10) is protected from low energy radiation such as UV light, by a layer of low energy absorbing materials, such as UV absorbers.
    • 描述为用于监测诸如X射线的高能量辐射的自我指示即时辐射剂量计(1001)。 剂量计包含辐射敏感的颜色变化的指示组合物(10),例如乙炔(RC = CC = C-R',其中R和R'是取代基)或放射性色素染料,聚合物粘合剂(20) 和任选的保质期延长剂(50)或活化剂(40)。 辐射敏感组合物(10)在暴露于高能量辐射时立即改变颜色。 通过使用分光光度计或光密度计将颜色与颜色参考图比较或更准确地估计剂量。 辐射敏感组合物(10)通过诸如UV吸收剂的低能量吸收材料层来保护免受诸如UV光的低能量辐射。
    • 45. 发明申请
    • EFFICIENT METHOD FOR RADIOCHROMIC FILM DOSIMETRY
    • 用于放射性薄膜分析的高效方法
    • WO2013138088A8
    • 2014-10-16
    • PCT/US2013028529
    • 2013-03-01
    • ISP INVESTMENTS INC
    • LEWIS DAVID FAIRHURSTMICKE ANDREYU XIANG
    • G01T1/08
    • G01T1/08A61N5/1048G01T1/02G01T1/04G01T7/005
    • The present invention provides a method for measuring a two-dimensional distribution of ionizing radiation doses with high spatial resolution. The method comprises exposing radiation sensitive film to a pattern of ionizing radiation to form a measurement film, exposing areas of radiation sensitive film to a plurality of known doses of the ionizing radiation to form a calibration film(s), scanning all the exposed films together with an unexposed radiation sensitive film at a single time to produce a digital image, measuring those areas of the digital image corresponding to the unexposed film and the calibration film(s) exposed to different known doses, associating the measured responses in the areas to the known doses and using the association to convert the values in the scanned image corresponding to the measurement film from scanner response values to dose values. In a preferred embodiment, all of the radiation sensitive films are the same type of film.
    • 本发明提供了一种用于测量具有高空间分辨率的电离辐射剂量的二维分布的方法。 该方法包括将辐射敏感膜暴露于电离辐射的图案以形成测量膜,将辐射敏感膜的区域暴露于多个已知剂量的电离辐射以形成校准膜,将所有暴露的膜扫描在一起 与单个时间的未曝光的辐射敏感膜产生数字图像,测量对应于未曝光的胶片和暴露于不同已知剂量的校准膜的数字图像的那些区域,将测量的响应在该区域中与 已知剂量并使用关联将来自扫描仪响应值的对应于测量膜的扫描图像中的值转换为剂量值。 在优选实施例中,所有的辐射敏感膜是相同类型的膜。
    • 48. 发明申请
    • DOSIMETER AND METHOD FOR USING THE SAME
    • 剂量计及其使用方法
    • WO02046728A1
    • 2002-06-13
    • PCT/US2001/030121
    • 2001-09-25
    • G01T1/04G01N23/02
    • G01T1/04
    • A very sensitive dosimeter that detects ionizing radiation is described. The dosimeter (10) includes a breakable sealed container (24). A solution (26) of a reducing agent is inside the container. The dosimeter has an air-tight dosimeter body (12) with a transparent portion (16) and an opaque portion (14). The transparent portion includes a transparent chamber (22) that holds the breakable sealed container with the reducing agent. The opaque portion includes an opaque chamber that holds an emulsion of silver salt (AgX) selected from silver chloride, silver bromide, silver iodide and combinations of them. A passaway in the dosimeter provides fluid communication between the transparent chamber and the opaque chamber. The dosimeter may also include a chemical pH indicator in the breakable container that provides a detectable color change to the solution for a pH of about 3-10. The invention also includes a method of detecting ionizing radiation that involves producing the dosimeter, breaking the breakable container, allowing the solution to flow through the passaway and contact the emulsion, detecting any color change in the solution and using the color change to determine radiation dosage.
    • 描述了检测电离辐射的非常敏感的剂量计。 剂量计(10)包括可破坏的密封容器(24)。 还原剂的溶液(26)在容器内。 剂量计具有带透明部分(16)和不透明部分(14)的气密剂量计主体(12)。 透明部分包括用可还原剂保持可破坏的密封容器的透明室(22)。 不透明部分包括不透明室,其保持选自氯化银,溴化银,碘化银及其组合的银盐(AgX)的乳液。 剂量计中的过滤器提供透明室和不透明室之间的流体连通。 剂量计还可以包括在可破坏的容器中的化学pH指示剂,其为溶液提供约3-10的pH的可检测的颜色变化。 本发明还包括一种检测电离辐射的方法,该方法涉及产生剂量计,破坏易破碎的容器,使溶液流过通过并接触乳液,检测溶液中的任何颜色变化并使用颜色变化来确定辐射剂量 。
    • 49. 发明申请
    • NEUTRON SPECTROMETER, REAL-TIME DOSIMETER AND METHODOLOGY USING THREE-DIMENSIONAL OPTICAL MEMORY
    • 中子光谱仪,实时计量器和使用三维光学记忆的方法
    • WO1995030909A1
    • 1995-11-16
    • PCT/US1995005837
    • 1995-05-10
    • GEORGETOWN UNIVERSITY
    • GEORGETOWN UNIVERSITYMOSCOVITCH, Marko
    • G01T01/00
    • G01T1/04G01T1/026G01T3/08
    • A dosimetry method and associated apparatus characterized by the steps of storing information in a three-dimensional optical memory element (20), then exposing the optical memory element to neutron or other high LET radiation to alter the information stored in the optical memory element as a function of the radiation to which the optical memory element is exposed, and then retrieving the altered information from the optical memory element. In a preferred embodiment, subsequent analysis of the altered information uses a neural network computer apparatus (30). The altered information is used to provide a measure of both the radiation dose and energy. The optical memory may be a 3-D ORAM (20) with a volume of a transparent polymer doped with a light sensitive chemical and, in particular, spirobenzopyran. Also, a spectrometer (40) for monitoring neutron and other types of radiation, an electronic dosimeter (50) for providing real-time monitoring of radiation exposure, and associated methodologies, are all based on use of an optical memory element.
    • 一种剂量测定方法和相关设备,其特征在于以下步骤:将信息存储在三维光学存储元件(20)中,然后将光学存储元件暴露于中子或其它高LET辐射,以将存储在光学存储元件中的信息改变为 光存储器元件暴露于其中的辐射的功能,然后从光学存储元件检索改变的信息。 在优选实施例中,改变信息的后续分析使用神经网络计算机设备(30)。 改变的信息用于提供辐射剂量和能量的量度。 光学存储器可以是具有掺杂有光敏化学品,特别是螺苯并吡喃的透明聚合物的体积的3-D ORAM(20)。 而且,用于监测中子和其它类型的辐射的光谱仪(40),用于提供对辐射暴露的实时监测的电子剂量计(50)以及相关方法都是基于光学存储元件的使用。