Technology to Grow Single Crystals of NaI:Tl and
Fabrication of Radiation Detectors
Single crystals of alkali halide inorganic scintillators are useful as nuclear radiation detectors in gamma-ray spectroscopy and radiography applications. These crystals are grown in silica crucibles using the vertical Bridgman technique. Crystals of NaI:Tl coupled to photo-multiplier tubes have exhibited excellent energy resolution of less than 7% at 662 keV, suitable to be used as radiation detectors in gamma-ray spectroscopy for the identification of radio-active nuclides.
BARC has developed a novel crystal growth system based on the modified Bridgman technique to grow high quality, crack-free single crystals of NaI:Tl. Single crystals of NaI:Tl up to 50 mm in diameter and 60 mm in length could be grown with almost 100% yield. Expertise has been developed to process the grown NaI:Tl crystals and fabricate scintillator detectors using photo-multiplier tubes (PMT).
: Diameter : 50 mm,
||: Less than 7% at 662 keV|
details contact :
Head, Technology Transfer & Collaboration Division,
BHABHA ATOMIC RESEARCH CENTRE,
TROMBAY, MUMBAI - 400 085
Fax : 091-022-25505151
Email : firstname.lastname@example.org