Eberline PNC-4 Neutron Detector


 

Overview:

Neutron detector.

A BF3 (Boron tri fluoride) detector tube enriched to 99% B10 is used to detect neutrons. When neutrons enter the detector tube they interact with the B10 in the following way: B10 + n => Li7 + a. The charge on the alpha particle generated in the reaction produces a signal across the input of the counter that is amplified and recorded.

 

PNC-4(4/30/2016)

Eberline PNC-4 neutron detector

 

PNC-4(4/30/2016)

Eberline PNC-4 neutron detector

 

PNC-4(4/30/2016)

Eberline PNC-4 neutron detector

 

PNC-4(4/30/2016)

Dual log scale rate meter

 

PNC-4(4/30/2016)

2.5Kcpm=10mr/h

26Kcpm=100mr/h

 

PNC-4(4/30/2016)

Top section containing electronics and bottom section containing BF3 tube and moderator

 

PNC-4(4/30/2016)

Nancy Wood BF3 tube

  • Model: G-10-2
  • Plateau: 1150-1400V
  • 20cm BF3
 

PNC-4(4/30/2016)

Tube inserts into moderator

 

PNC-4(4/30/2016)

Connectors for cable to probe

 

PNC-4(4/30/2016)

Connectors for cable to probe

 

PNC-4(4/30/2016)

Connectors for cable to probe

 

PNC-4(4/30/2016)

Battery compartment shows only minimal signs of corrosion

 

PNC-4(4/30/2016)

Bakelite battery case

 

PNC-4(4/30/2016)

Contact pins to top panel

 

PNC-4(4/30/2016)

Top panel

 

PNC-4(4/30/2016)

Contact side of top panel

 

PNC-4(4/30/2016)

Contact side of bottom panel

 

PNC-4(4/30/2016)

trace side of bottom panel

 

PNC-4(4/30/2016)

Battery pack removed, showing circuitry cards

 

PNC-4(4/30/2016)

HV supply

 

PNC-4(4/30/2016)

HV supply

 

PNC-4(4/30/2016)

Threshold and count detector, note the tunnel diode in the top middle of the board

 

PNC-4(4/30/2016)

Threshold and count detector

 

PNC-4(4/30/2016)

Meter drive board

 

PNC-4(4/30/2016)

Meter drive board

 

PNC-4(4/30/2016)

Interconnect board

 

PNC-4(4/30/2016)

Interconnect board

 

PNC-4(4/30/2016)

Interconnect board

 

PNC-4(4/30/2016)

Calibration potentiometers

 
   
 
   
 

 

 


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