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High Sensitivity Helium-3 He-3 Neutron Detector Proportional Counter Tube SNM-56

$ 76.55

Availability: 100 in stock
  • Model: Neutron Detector
  • Condition: Excellent choice for fusor enthusiasts!
  • Country/Region of Manufacture: Russian Federation
  • All returns accepted: Returns Accepted
  • Refund will be given as: Money Back
  • Return shipping will be paid by: Buyer
  • Item must be returned within: 30 Days
  • Brand: N/A
  • MPN: SNM-56
  • Type: Detector

    Description

    High sensitivity Helium-3 (
    3
    He) neutron detector SNM-56 (СНМ-56), proportional counter tube.
    This detector is sensitive to thermal neutrons and is an excellent choice for Fusor enthusiasts.
    This detector will work both in proportional and corona modes (depending on bias voltage).
    This is a spectroscopy-grade detector - see the attached thermal neutron spectrum.
    SOFTWARE:
    maximus.energy/index.php/software/
    MANUAL:
    maximus.energy/wp-content/uploads/2020/04/PulseCounter.pdf
    OFFICIAL SITE:
    maximus.energy
    Advice
    Avoid frustration, wasted money and painful learning curve - buy a
    complete turn-key neutron counting and monitoring system
    that comes with multi-channel analyzer, high-voltage power supply, this neutron detector, all cables and PC software!
    Sensitivity
    ~300 CPM using 1 mCi Po-Be neutron source (moderated)
    Background ~3 CPM.
    Moderator
    For best results surround the detector with 3 inches of HDPE moderator on all sides.
    Connectivity
    Use 100 pF capacitor and for HV bias voltage filtering and 10 MOhm resistor for HV bias load.
    Technical Specifications
    Tube Length: 5 inches
    Tube Diameter: 1.25" inches
    Radiator: Helium-3
    Initial Fill Helium-3 Pressure: 4 atm
    Recommended bias voltage: 1400V (proportional mode)