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    • 26. 发明授权
    • Very bright scintillators
    • 非常明亮的闪烁体
    • US07612342B1
    • 2009-11-03
    • US11535797
    • 2006-09-27
    • Vivek V. Nagarkar
    • Vivek V. Nagarkar
    • G01T1/20H01J23/34H01J29/10G09G3/20
    • H01J29/20C09K11/616C09K11/628C09K11/681C09K11/745C09K11/7719C09K11/7721C09K11/7723C09K11/7733C09K11/7772C09K11/88G01T1/20
    • The present application discloses methods and devices for increasing the light output of a scintillator. Using the methods of the present disclosure, a very high intensity electric field is applied to a scintillator exposed to ionizing radiation and provides light outputs that far exceeds those previously obtained in the art. The light output gains are very high, on the order of 10 to 100 times those obtained with prior methods, and will make it possible to achieve sufficient brightness to enable the use of a cathode ray tube or a field emission display in new devices. In the field of x-ray imaging, a bright scintillator will have tremendous potential in many important applications, such as computed tomography (CT), SPECT, diagnostic digital radiology, and the like.
    • 本申请公开了用于增加闪烁体的光输出的方法和装置。 使用本公开的方法,将非常高强度的电场施加到暴露于电离辐射的闪烁体,并提供远远超过本领域先前获得的光输出。 光输出增益非常高,是用现有方法获得的光输出增益的10至100倍,并且将使得可以实现足够的亮度,以便能够在新器件中使用阴极射线管或场发射显示。 在X射线成像领域,在诸如计算机断层摄影(CT),SPECT,诊断数字放射学等许多重要应用中,明亮的闪烁体将具有巨大的潜力。
    • 30. 发明申请
    • ULTRAVIOLET EMITTING SCINTILLATORS FOR OIL DETECTION
    • 用于油类检测的超紫外线发射扫描仪
    • US20060027742A1
    • 2006-02-09
    • US10617643
    • 2003-07-11
    • Alok SrivastavaHolly ComanzoCharles Greskovich
    • Alok SrivastavaHolly ComanzoCharles Greskovich
    • G01V5/04
    • G01N33/2823C09K11/628C09K11/673C09K11/676C09K11/7719C09K11/772C09K11/7774G01N23/22G01N2223/1013G01N2223/505G01N2223/616G21K4/00
    • An aspect of the present invention is directed to a system for use in oil well drilling applications. The system includes a scintillator material having a cubic garnet host and praseodymium distributed within the host. The scintillator material emits ultraviolet radiation in response to stimulating gamma ray radiation. A radiation detector optically coupled to the scintillator detects the emitted ultraviolet radiation. Another aspect of the invention is a method for detecting oil. A radiation detector is optically coupled to a scintillator material having a cubic garnet host and praseodymium distributed within the host, wherein the praseodymium acts as an activator, and wherein the scintillator material emits ultraviolet radiation in response to stimulating gamma ray radiation. The detector and the scintillator material are lowered below the surface of the earth, and ultraviolet radiation emitted by the scintillator material in response to stimulating gamma ray radiation reflected by hydrogen bearing compounds indicating the presence of oil is detected by the detector.
    • 本发明的一个方面涉及一种用于油井钻井应用的系统。 该系统包括具有分布在主机内的立方石榴石主体和镨的闪烁体材料。 闪烁体材料响应于刺激的γ射线辐射而发射紫外线。 与闪烁体光学耦合的放射线检测器检测发射的紫外线辐射。 本发明的另一方面是检测油的方法。 放射线检测器光学耦合到具有分布在主机内的立方石榴石主体和镨的闪烁体材料,其中镨作为激活剂,并且其中闪烁体材料响应于刺激的γ射线辐射而发射紫外线辐射。 检测器和闪烁体材料降低到地球表面以下,并且由检测器检测响应由表示油存在的含氢化合物反映的刺激性伽马射线辐射而由闪烁体材料发射的紫外线辐射。