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NeuPort 2500

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  • Replaces He-3 systems without modification of existing electronics or significant changes in voltage
  • Provides performance that meets or exceeds ANSI standards
  • Contains no hazardous materials and does not require secondary containment.

NeuPort 2500 is a 6LiF/ZnS(Ag) based neutron detector to replace He-3 tube in Radiation Portal Monitors.  The “2500” designation is derived from its minimum neutron sensitivity, 2.5 cps/ng of moderated 252Cf at 2 meters.

 Proprietary Pulse Shape Discrimination (PSD) algorithm is employed to count neutrons and reject gamma ray events


Stefan Isaksson


Technical specification

  • Neutron efficiency ≥ 2.5 cps/ng, 252Cf moderated source @ 2 meters from the center
  • Gamma rejection ≤ 1 x 10-6 @ 10mR/hr 60Co
  • 0.9 ≤ GARRn ≤ 1.1, 252Cf @ 2 meters & 10 mR/hr 60Co
  • Operating temperature: -30°C to +55°C

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