Fast digitization and discrimination of prompt neutron and photon signals using a novel silicon carbide detector Metadata

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Title

  • Main Title Fast digitization and discrimination of prompt neutron and photon signals using a novel silicon carbide detector

Creator

  • Author: Blackburn, Brandon W.
    Creator Type: Personal
  • Author: Johnson, James T.
    Creator Type: Personal
  • Author: Watson, Scott M.
    Creator Type: Personal
  • Author: Chichester, David L.
    Creator Type: Personal
  • Author: Jones, James L.
    Creator Type: Personal
  • Author: Ruddy, Frank H.
    Creator Type: Personal
  • Author: Seidel, John G.
    Creator Type: Personal
  • Author: Flammang, Robert W.
    Creator Type: Personal

Contributor

  • Sponsor: United States. Department of Energy.
    Contributor Type: Organization

Publisher

  • Name: Idaho National Laboratory
    Place of Publication: [Idaho Falls, Idaho]
    Additional Info: Idaho National Laboratory (INL)

Date

  • Creation: 2007-04-01

Language

  • English

Description

  • Content Description: Current requirements of some Homeland Security active interrogation projects for the detection of Special Nuclear Material (SNM) necessitate the development of faster inspection and acquisition capabilities. In order to do so, fast detectors which can operate during and shortly after intense interrogation radiation flashes are being developed. Novel silicon carbide (SiC) semiconductor Schottky diodes have been utilized as robust neutron and photon detectors in both pulsed photon and pulsed neutron fields and are being integrated into active inspection environments to allow exploitation of both prompt and delayed emissions. These detectors have demonstrated the capability of detecting both photon and neutron events during intense photon flashes typical of an active inspection environment. Beyond the inherent insensitivity of SiC to gamma radiation, fast digitization and processing has demonstrated that pulse shape discrimination (PSD) in combination with amplitude discrimination can further suppress unwanted gamma signals and extract fast neutron signatures. Usable neutron signals have been extracted from mixed radiation fields where the background has exceeded the signals of interest by >1000:1.

Subject

  • Keyword: Digitization
  • Keyword: Amplitudes
  • Keyword: Shape
  • Keyword: Pulse Shape Discrimination
  • Keyword: Snm
  • Keyword: Processing
  • Keyword: Silicon Carbide
  • Keyword: Fast Neutrons
  • Keyword: Neutrons
  • Keyword: Gamma Radiation
  • Keyword: Detection
  • Keyword: Silicon Carbides Active Inspection
  • Keyword: Radiations
  • Keyword: Active Inspection
  • Keyword: Security
  • STI Subject Categories: 46 - Instrumentation Related To Nuclear Science And Technology
  • Keyword: Prompt Neutrons
  • Keyword: Photons

Source

  • Conference: SPIE International Symposium on Defense and Security,Orlando, FL,04/09/2007,04/13/2007

Collection

  • Name: Office of Scientific & Technical Information Technical Reports
    Code: OSTI

Institution

  • Name: UNT Libraries Government Documents Department
    Code: UNTGD

Resource Type

  • Article

Format

  • Text

Identifier

  • Report No.: INL/CON-07-12442
  • Grant Number: DE-AC07-99ID-13727
  • Office of Scientific & Technical Information Report Number: 912453
  • Archival Resource Key: ark:/67531/metadc887413