Bismuth iodide (III) crystals for nuclear radiation detectors

M. Matsumoto, K. Hitomi, T. Shoji, Y. Hiratate

Research output: Contribution to conferencePaperpeer-review

2 Citations (Scopus)


Bismuth tri-iodide (BiI 3) is an attractive material for room temperature radiation detectors because of its wide bandgap energy and high photon stopping power. In this study, BiI 3 crystals have been grown by the vertical Bridgman technique using commercially available powder. The grown crystals have been characterized in terms of their structural properties and stoichiometry. Room temperature radiation detectors have been fabricated from the crystals and tested by measuring their leakage currents and spectroscopic responses. A clear peak corresponding to 5.48 MeV α-particles ( 241Am) was recorded with a BiI 3 detector 82 μm thick with 0.8 mm 2 palladium electrodes. The energy resolution of the 5.48 MeV peak was measured to be 2.2 MeV FWHM.

Original languageEnglish
Number of pages4
Publication statusPublished - 2002
Event2001 IEEE Nuclear Science Symposium Conference Record - San Diego, CA, United States
Duration: 2001 Nov 42001 Nov 10


Other2001 IEEE Nuclear Science Symposium Conference Record
Country/TerritoryUnited States
CitySan Diego, CA

ASJC Scopus subject areas

  • Radiation
  • Nuclear and High Energy Physics
  • Radiology Nuclear Medicine and imaging


Dive into the research topics of 'Bismuth iodide (III) crystals for nuclear radiation detectors'. Together they form a unique fingerprint.

Cite this