• GS-1515-CSI Caesium Iodide Gamma Scintillation Detector

1.5" x 1.5" CsI(Tl) Gamma Scintillation Detector

These small 1.5" detectors are great for portable systems, small enough to handle yet big enough to produce a decent gamma spectrum. 

Thallium doped Caesium Iodide or CsI(Tl) scintillation crystals are a great alternative to NaI(Tl) and have several advantages. 

  • Caesium Iodide is not hygroscopic allowing for the crystal to be coupled directly to the PMT
  • Caesium iodide has a density of 4.51 gr/cm^3 and is almost  23% more efficient than NaI(Tl)
  • Slightly less fragile 

The detector is supplied with an SHV male connector, compatible with the GS-USB-PRO, but can be supplied with a HV-BNC if required.

We recommend this detector for use with the GS-PRO-V5 spectrometer.

This detector is built by Bee Research from quality new components.


Scintillation Crystal: CsI(Tl) Bridgeman growth

PMT.......................: Hamamatsu R980

Connector..............: SHV

Background CPM...: tba

Resolution at 660 keV: 6 - 7%

Voltage Range 650V - 750V

Gamma Efficiency at 662 keV (Cs137) : approx. 70%

Supplied with 1.2 m SHV to SHV Coaxial cable

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GS-1515-CSI Caesium Iodide Gamma Scintillation Detector

  • USD $1,750.00

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Tags: csi_tl, caesium iodide, gamma detector, gamma scintillation detector, gamma scintillator.

Refund & Return Policy

We want you to be 100% happy with your Gammaspectacular product, and offer free after sales support to get you up and running.

If you for any reason you require a refund or replacement, please contact us within 30 days of purchase to arrange the return.
Return shipping cost and risk is the sole responsibility of the buyer.

Return shipping address: Bee Research, Po Box 6259, Alexandria, NSW 2020, Australia