Detectors and Stands

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Radiation Detectors & Stands.

Geiger-Mueller Detectors
GP 25
A complete detector assembly utilizing a 25 mm diameter end-windowed GM tube for Alpha, Beta, Gamma detection. The plastic stand includes a sample tray and features 10-slots with 1 cm spacing for performing inverse square law experiments and holding radiation absorbers.
The GM probe is readily removed from the stand for safe storage, hand-held applications or replacement.

ORDER: GP25

Component Parts.
GM25 GM Probe, 25mm end window with BNC connector.
GMS25 10 position stand with sample tray.
BNC3 BNC/BNC cable, 3-ft.

GM 25

Replacement GM tube. 25 mm end window, 2 mg/cm2, 150v plateau, 150 microsecond deadtime, BNC connector.
25 mm OD, x 90 mm L.

ORDER: GM25

GP 35

Similar to the GP 25 but with a 35 mm Geiger tube for added sensitivity and improved counting efficiency.

ORDER: GP35

Component Parts.

GM35 GM Probe, 35mm end window with BNC connector.
GMS35 10 position stand with sample tray.
BNC3 BNC/BNC cable, 3-ft.

GM 35

Replacement GM tube. 35mm end window, 2 mg/cm2, 150v plateau, 200 microsecond deadtime, BNC connector. 35 mm OD, x 223 mm L.

ORDER: GM35

Scintillation Detectors
SPA 38
The SPA 38 provides a complete detector assembly for gamma spectroscopy applications. The 38x38 mm NaI(Tl) crystal includes PMT and voltage divider as an integral assembly. The probe is supplied complete with a 10-position sample stand, lead shield and cables for connecting directly to the spectrometer. Resolution is typically 7% @ 662 keV.
ORDER: SPA38
Component Parts.
SDA38 Scintillation detector, 38x38mm with with voltage divider.
GMS38 position stand with sample tray and LS038 lead shield.
BNC6 and MHV6 cable assemblies.

SDA 38
Replacement scintillation detector, 38x38 mm crystal, with integral voltage divider, 7% resolution.
ORDER: SDA38

SP78W
This well detector assembly includes a NaI(Tl) 1.75x2" crystal with 0.7x1.5" well, voltage divider, stand, lead shield and cable(s). It ideally suited for measuring tube samples and wipes using a Multichannel Analyzer or scintillation counter.
Ordering Information:
SP78W1 Single wire connection for scintillation counters.
SP78W2 Separate HV and signal cables for use with MCA's.

TS78-1

Tube stand for 14-pin PMTs with single wire for HV and signal.
ORDER: TS78-1

SD78W

Replacement scintillation well detector for SP78W.

ORDER: SD78W