Accession Number : ADA516750


Title :   The Material Properties of CsSnBr3 and CsBr:Sn-1% and Their Potential as Scintillator Detector Material


Descriptive Note : Master's thesis


Corporate Author : AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH GRADUATE SCHOOL OF ENGINEERING AND MANAGEMENT


Personal Author(s) : Kleinschmidt, Neal


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a516750.pdf


Report Date : Mar 2010


Pagination or Media Count : 113


Abstract : The search for superior nuclear radiation detection materials is ongoing. Current scintillator materials using Thallium doped Sodium Iodide or Cesium Iodide are the benchmarks for ease of use and quick identification of isotope species. This research aims to explore Cesium Bromide doped with 1% molar tin (CsBr:Sn-1%) and Cesium Tin Bromide (CsSnBr3) as candidate materials for a new scintillator. The techniques of Extended X-Ray Absorption Fine Structure (EXAFS), X-Ray Absorption Near Edge Structure (XANES) and Cathodoluminescence are used to determine the suitability of CsSnBr3 and CsBr:Sn 1% with Sn4+ as a potential scintilator materials and explore their crystal and electronic structures. Comparisons with current published work by Savchyn et al. [2007] on CsSnBr3 and CsBr:Sn-1% with Sn2+ will be made. Cathodoluminescence shows the CsBr:Sn-1% with Sn4+ to luminesce at 2.4-eV and 3.0-eV, green and violet respectively, indicating the strong possibility of using CsBr:Sn-1% as a scintillator.


Descriptors :   *NUCLEAR RADIATION , *CESIUM COMPOUNDS , *BROMIDES , *CATHODOLUMINESCENCE , THESES , CESIUM , IDENTIFICATION , ISOTOPES , STANDARDS , TIN , SCINTILLATION , IODIDES , ELECTRONIC EQUIPMENT , MATERIALS , STRUCTURAL PROPERTIES , QUICK REACTION , DETECTORS


Subject Categories : Inorganic Chemistry


Distribution Statement : APPROVED FOR PUBLIC RELEASE