Thermal Neutron Detectors with Discrete Anode Pad Readout

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A new two-dimensional thermal neutron detector concept that is capable of very high rates is being developed. It is based on neutron conversion in {sup 3}He in an ionization chamber (unity gas gain) that uses only a cathode and anode plane; there is no additional electrode such as a Frisch grid. The cathode is simply the entrance window, and the anode plane is composed of discrete pads, each with their own readout electronics implemented via application specific integrated circuits. The aim is to provide a new generation of detectors with key characteristics that are superior to existing techniques, such as ... continued below

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Yu,B. & Schaknowski, N.A., Smith, G.C., DeGeronimo, G., Vernon, E.O. October 19, 2008.

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A new two-dimensional thermal neutron detector concept that is capable of very high rates is being developed. It is based on neutron conversion in {sup 3}He in an ionization chamber (unity gas gain) that uses only a cathode and anode plane; there is no additional electrode such as a Frisch grid. The cathode is simply the entrance window, and the anode plane is composed of discrete pads, each with their own readout electronics implemented via application specific integrated circuits. The aim is to provide a new generation of detectors with key characteristics that are superior to existing techniques, such as higher count rate capability, better stability, lower sensitivity to background radiation, and more flexible geometries. Such capabilities will improve the performance of neutron scattering instruments at major neutron user facilities. In this paper, we report on progress with the development of a prototype device that has 48 x 48 anode pads and a sensitive area of 24cm x 24cm.

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  • 2008 Nuclear Science Symposium; Dresden, Germany; 20081019 through 20081025

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  • Report No.: BNL--90399-2009-CP
  • Grant Number: DE-AC02-98CH10886
  • Office of Scientific & Technical Information Report Number: 970505
  • Archival Resource Key: ark:/67531/metadc926623

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  • October 19, 2008

Added to The UNT Digital Library

  • Nov. 13, 2016, 7:26 p.m.

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  • Dec. 12, 2016, 8:36 p.m.

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Yu,B. & Schaknowski, N.A., Smith, G.C., DeGeronimo, G., Vernon, E.O. Thermal Neutron Detectors with Discrete Anode Pad Readout, article, October 19, 2008; United States. (digital.library.unt.edu/ark:/67531/metadc926623/: accessed August 21, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.