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TOPAZ-Pico is a compact, stand-alone digital Multi-Channel Analyzer (MCA), which can perform Pulse Height Analysis (PHA) of the signal produced by a standard scintillation detectors.

The device is therefore useful for obtaining the energy spectrum from the photon radiation detected by the scintillator, and can be easily interfaced to a typical PC or notebook via a standard USB port for further data transfer and analysis.

The MCA is provided with a basic software package that allows to control the device, and to acquire and visualize the energy spectrum. The bMCA software incorporates an advanced and easy-to-use “discovery” function that can be used to detect automatically the MCAs of the bMCA series and TOPAZ series connected to the PC.

TOPAZ-Pico is provided with several scintillation detector assemblies. Our catalogue includes NaI(Tl), CsI(Tl), BGO, LaBr3 and CeBr3 detectors.
Standard configurations with:

  • NaI(Tl), CsI(Tl) and BGO, with cylindrical volume 2”x2” or 3”x3”
  • CeBr3 and LaBr3 with cylindrical volume 1.5”x1.5”
  • LaBr3 with cylindrical volume 1”x1”

Other scintillator types and volumes can be provided on request.

In addition to standard supply, the following options are available upon request:

  • Topaz-Pico
  • Topaz-Pico/BNC has BNC connector for signal and separate SHV connector for HV output
  • Topaz-Pico OEM board


Code Topaz Version Material Dimension Energy Resolution FWHM at 662 keV
TOP-PIC-5151NAI Topaz Pico NaI(Tl) 2″ø x 2″h <7.5%
TOP-PIC-7676NAI Topaz Pico NaI(Tl) 3″ø x 3″h <7.5%
TOP-PIC-5151CS Topaz Pico CsI(Tl) 2″ø x 2″h <8%
TOP-PIC-7676CS Topaz Pico CsI(Tl) 3″ø x 3″h <8%
TOP-PIC-5151BGO Topaz Pico Bi4Ge3O12 2″ø x 2″h <13%
TOP-PIC-7676BGO Topaz Pico Bi4Ge3O12 3″ø x 3″h <13%
TOP-PIC-3838CEBR Topaz Pico CeBr3 1.5″ø x 1.5″h <4.2%
TOP-PIC-2525LABR Topaz Pico LaBr3 1″ø x 1″h <3.5%
TOP-PIC-3838LABR Topaz Pico LaBr3 1.5″ø x 1.5″h <3%
TOP-BNC-5151NAI Topaz Pico-BNC NaI(Tl) 2″ø x 2″h <7.5%
TOP-BNC-7676NAI Topaz Pico-BNC NaI(Tl) 3″ø x 3″h <7.5%
TOP-BNC-5151CS Topaz Pico-BNC CsI(Tl) 2″ø x 2″h <8%
TOP-BNC-7676CS Topaz Pico-BNC CsI(Tl) 3″ø x 3″h <8%
TOP-BNC-5151BGO Topaz Pico-BNC Bi4Ge3O12 2″ø x 2″h <13%
TOP-BNC-7676BGO Topaz Pico-BNC Bi4Ge3O12 3″ø x 3″h <13%
TOP-BNC-3838CEBR Topaz Pico-BNC CeBr3 1.5″ø x 1.5″h <4.2%
TOP-BNC-2525LABR Topaz Pico-BNC LaBr3 1″ø x 1″h <3.5%
TOP-BNC-3838LABR Topaz Pico-BNC LaBr3 1.5″ø x 1.5″h <3%


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