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Open Daily: 10am - 10pm | Alley-side Pickup: 10am - 7pm
3038 Hennepin Ave Minneapolis, MN
612-822-4611
Novel Gamma-Ray and Thermal-Neutron Scintillators: Search for High-Light-Yield and Fast-Response Materials

Novel Gamma-Ray and Thermal-Neutron Scintillators: Search for High-Light-Yield and Fast-Response Materials

Paperback

Physics

ISBN10: 1586038168
ISBN13: 9781586038168
Publisher: Sage Publications Ltd
Published: May 20 2025
Pages: 218
Weight: 0.78
Height: 0.46 Width: 6.69 Depth: 9.61
Language: English

In this book, bromide and iodide scintillators, which have been investigated for the past four years, are presented. Three major groups of compounds were studied; lanthanide trihalides LnX3, (pseudo)-elpasolites M2ALnX6 and ternary halides AmLnnXo. Where M and A are alkali cations, Ln is a rare earth cation and X is a halide anion. Some materials show interesting -scintillation properties. LuI3: Ce3+, one of lanthanide trihalides, has a record high light output of 98,000 photons/MeV and a fast response of 35 ns. Two other groups, (pseudo)-elpasolites and ternary halides, show relatively low light yields. For thermal neutron scintillator, the focus was on (pseudo)-elpasolites M2LiLnX6 and ternary halides LimLnnXo groups. Rb2LiYBr6: Ce3+ shows an excellent neutron peak resolution of 3.6 %. This is the best neutron peak resolution ever reported. Together with the large / ratio of 0.74, Rb2LiYBr6: Ce3+ offers the possibility of excellent neutron/ discrimination. The highest thermal neutron scintillation light yield of 83,000 photons/neutron is also reported for Rb2LiYBr6: Ce3+. The analysis for all halide scintillators is also presented. Limitation in their light yields and response times is discussed.

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