Bulletin of Materials Science

, 42:258 | Cite as

Development of a silicon photodiode-based compact gamma spectrometer using a \(\hbox {Gd}_{{3}} \hbox {Ga}_{{3}} \hbox {Al}_{{2}} \hbox {O}_{{12}}\):Ce,B single crystal scintillator

  • Pratip Mitra
  • Saurabh Srivastava
  • Mohit TyagiEmail author
  • A Vinod Kumar
  • S C Gadkari


A compact gamma spectrometer was developed by employing an in-house grown single crystal of \(\hbox {Gd}_{{3}} \hbox {Ga}_{{3}} \hbox {Al}_{{2}} \hbox {O}_{{12}}\):Ce,B scintillator optically coupled with a silicon photodiode. The performance of the detector was characterized in detail. The detector setup works with a low bias voltage of 9 V, drawn from a single battery. Power to the electronic components of the entire system is derived from a single universal serial bus port by employing required DC–DC converters. In addition to the low voltage operation, this developed spectrometer is very compact in size compared to the one developed by employing photo-multiplier tubes. The system offers excellent linearity over the gamma energy range of 344–1408 keV and an optimum energy resolution of about 13% at 662 keV.


Single crystal scintillator photodiode gamma spectrometer 



The authors would like to thank Sheetal Rawat, IIT Roorkee, for helping in crystal characterization and coupling, Anisha Gupta, EMAD, BARC, for helping in wiring of the system and K R Tudu, RSSD, BARC for fabricating the enclosure of the system.


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Copyright information

© Indian Academy of Sciences 2019

Authors and Affiliations

  1. 1.Environmental Monitoring and Assessment DivisionBhabha Atomic Research CenterMumbaiIndia
  2. 2.Homi Bhabha National InstituteMumbaiIndia
  3. 3.Technical Physics DivisionBhabha Atomic Research CenterMumbaiIndia

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