High Speed CSI(Tl) Gamma spectrometer

The GS-2020-CSI-MAX is a 2x2" CSI(Tl) detector with integral high speed spectrometer, this detector can count up to 100,000 cps with excellent resolution < 7%.

It connects directly to a PC and works with free open source software called Becqmoni.

Temperature Stabilised

The GS-2020-CSI-MAX detector has integral temperature sensor to compensate for temperature drift over a wide range from -40C˚ to +80C˚

PC, Mac and Android Software

Choose between Becqmoni Atom (PC only) or Impulse (PC or Mac) software both software have unique features which may suit your experiments. The spectrometer will also work with an Android smartphone or tablet.


Download Becqmoni for PC

Download Impulse Mac or PC

Download Atom-Spectra Android


1 x Gamma Detector with 2x2" CSI(Tl)

1 x Water resistant USB cable 2.0 meter

1 x Poly Propylene Instrument case

1 x Manual

Made in Australia

Specifications Value
Scintillation Crystal 52x52 mm Encapsulated CSI(Tl)
Photomultiplier Hamamatsu R6231
Housing Aluminium 1.0 mm (+-0.2)
Finish White powder coat
Dimensions 250 x 63 mm
Connector (on detector) USB Type-B
USB Cable length 2 meter
Power consumption 170 mA
Max Channels 8192
Temperature stability -40 C˚ to +80 C˚
Communication protocol UART over USB
Communication speed (rec) 600,000 Baud
Bias Voltage Factory Preset

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  • USD $4,200.00

Tags: Gamma spectrometer, csi detector, scintillation detector, usb spectrometer

Purchasing information

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Student Discounts

We gladly offer full time students and amateur fusioneers a once off A$50 student discount on orders over $300, the discount is a self serve, honour system, so if you are very young or very old, and don't have a full time job or lot's of money, you simply type the word student into the coupon code field when you place your order. * To redeem a student coupong, you need to create an account and log in.

Educational Institutions

Talk to us about classroom bulk purchases, why share one spectroscopy system per class, when you can have one on every workbench. We can offer formal quotations by request and are happy to cooperate with government or institutional procurement teams. Please use contact us for a quote.