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Neutron Gamma X-ray Scintillator Geiger Counter Probe Tube Plastic Detector Part, US $35.55 – Picture 0
Neutron Gamma X-ray Scintillator Geiger Counter Probe Tube Plastic Detector Part, US $35.55 – Picture 0

Neutron Gamma X-ray Scintillator Geiger Counter Probe Tube Plastic Detector Part

US $35.55

  • La Valle, Wisconsin, United States
  • Jan 30th
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This is a small 32x32x43 mm block of high quality scintillation material. It fits 1-1/2 inch face PMT tubes nicely. To make your probe with a PMT tube: This part should first be glued to the prepped PMT with a high quality silicone or epoxy glue. If using epoxy glue, the shiny side should face the PMT face. If using silicone glue the matte side should face the PMT. Then the block should be spray painted with two coats of brilliant white (titanium dioxide) paint first, and then one coat of flat black paint. Finally it should be wrapped in aluminum foil to the base of the PMT, and potted into piece of PVC pipe with a BNC connector for connection to your meter. The resistor string of the PMT should have 8-10meg ohms between dynode electrode stages. Use 3 10nF buffer capacitors on the last three dynodes before the plate, and a high voltage 4.7nF capacitor between the cathode and last dynode stage. Isolate the plate from the last dynode by a 10meg resistor. Assembled this way it will make an extremely sensitive radiation detector probe that will rival most common commercially available units in sensitivity. This material is hard to find. I have lots of lasers and other unique stuff for sale this week.
Condition Used :
An item that has been used previously. The item may have some signs of cosmetic wear, but is fully operational and functions as intended. This item may be a floor model or store return that has been used. See the seller’s listing for full details and description of any imperfections.
Seller Notes “Cut from a larger piece. Has a matte finish which couples best using imperfect glues to PMT.”

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