公开(公告)号：US5680423A

公开(公告)日：1997-10-21

申请号：US410169

申请日：1995-03-24

申请人： Richard W. Perkins ,  Paul L. Reeder ,  Ned A. Wogman ,  Ray A. Warner ,  Daniel W. Brite ,  Wayne C. Richey ,  Don S. Goldman

发明人： Richard W. Perkins ,  Paul L. Reeder ,  Ned A. Wogman ,  Ray A. Warner ,  Daniel W. Brite ,  Wayne C. Richey ,  Don S. Goldman

IPC分类号： G01T3/06

CPC分类号： G01T3/06

摘要： The instant invention is a method for making and using an apparatus for detecting neutrons. Scintillating optical fibers are fabricated by melting SiO.sub.2 with a thermal neutron capturing substance and a scintillating material in a reducing atmosphere. The melt is then drawn into fibers in an anoxic atmosphere. The fibers may then be coated and used directly in a neutron detection apparatus, or assembled into a geometrical array in a second, hydrogen-rich, scintillating material such as a polymer. Photons generated by interaction with thermal neutrons are trapped within the coated fibers and are directed to photoelectric converters. A measurable electronic signal is generated for each thermal neutron interaction within the fiber. These electronic signals are then manipulated, stored, and interpreted by normal methods to infer the quality and quantity of incident radiation. When the fibers are arranged in an array within a second scintillating material, photons generated by kinetic neutrons interacting with the second scintillating material and photons generated by thermal neutron capture within the fiber can both be directed to photoelectric converters. These electronic signals are then manipulated, stored, and interpreted by normal methods to infer the quality and quantity of incident radiation.

摘要翻译： 本发明是用于制造和使用用于检测中子的装置的方法。 闪烁光纤通过在还原气氛中用热中子捕获物质和闪烁材料熔化SiO 2来制造。 然后将熔体在缺氧气氛中吸入纤维中。 然后可以将纤维涂覆并直接用于中子检测装置，或者在第二富氢闪烁材料如聚合物中组装成几何阵列。 通过与热中子的相互作用产生的光子被捕获在涂覆的光纤内并被引导到光电转换器。 为光纤内的每个热中子相互作用产生可测量的电子信号。 然后通过常规方法对这些电子信号进行操作，存储和解释，以推断入射辐射的质量和数量。 当纤维以阵列排列在第二闪烁材料内时，通过与第二闪烁材料相互作用的动能中子产生的光子和光纤内的热中子俘获产生的光子都可以被引导到光电转换器。 然后通过常规方法对这些电子信号进行操作，存储和解释，以推断入射辐射的质量和数量。

公开(公告)号：US5442180A

公开(公告)日：1995-08-15

申请号：US110284

申请日：1993-08-19

申请人： Richard W. Perkins ,  Alan J. Schilk ,  Ray A. Warner ,  Ned A. Wogman

发明人： Richard W. Perkins ,  Alan J. Schilk ,  Ray A. Warner ,  Ned A. Wogman

IPC分类号： G01N1/22 ,  G01T1/167 ,  G01T1/202 ,  G01T7/00

CPC分类号： G01T7/00 ,  G01T1/167 ,  G01T1/202 ,  G01N2001/2285

摘要： The instant invention is an apparatus for determining the concentration of radioactive constituents in a test sample; such as surface soils, via rapid real-time analyses, and direct readout on location utilizing a probe made up of multiple layers of detection material used in combination with an analyzer and real-time readout unit. This is accomplished by comparing the signal received from the probe, which can discriminate between types of radiation and energies with stored patterns that are based upon experimental results. This comparison can be used in the calibration of a readout display that reads out in real-time the concentrations of constituents per given volume. For example, the concentration of constituents such as Cs-137, Sr-90, U-238 in the soil, and noble gas radionuclides such as Kr-85 in the atmosphere, can be measured in real-time, on location, without the need for laboratory analysis of samples.

摘要翻译： 本发明是用于测定试样中放射性成分浓度的装置。 例如通过快速实时分析的表面土壤，以及使用由分析仪和实时读出单元组合使用的多层检测材料组成的探针直接读取位置。 这通过比较从探头接收的信号来实现，该信号可以基于实验结果将存储的图案区分在辐射类型和能量之间。 该比较可以用于读出显示器的校准，该读出显示器实时读出每给定体积的成分浓度。 例如，土壤中的Cs-137，Sr-90，U-238等成分和大气中的Kr-85等惰性气体放射性核素的浓度可以实时测定，不存在 需要实验室分析样品。