Journal of radiological science and technology (대한방사선기술학회지:방사선기술과학)

Korean Society of Radiological Science (대한방사선과학회)
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The Physical Characteristics and Preparation of $Mg_2SiO_4(La.Ho)$ Thermoluminescent Phosphor

$Mg_2SiO_4(La.Ho)$열형광체의 제작과 물리적 특성

  • Noh, Kyung-Suk (Dept, of Radiologic Technology, Masan Junior College) ;
  • Song, Jae-Heung (Dept, of Radiologic Technology, Masan Junior College) ;
  • Koo, Hyo-Geun (Dept, of Radiologic Technology, Masan Junior College) ;
  • Lee, Deog-Kyu (Dept, of Radiologic Technology, Masan Junior College)
  • 노경석 (마산전문대학 방사선과) ;
  • 송재홍 (마산전문대학 방사선과) ;
  • 구효근 (마산전문대학 방사선과) ;
  • 이덕규 (마산전문대학 방사선과)
  • Published : 1997.05.30
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Abstract

[ $Mg_2SiO_4(La.Ho)$ ] thermoluminescent phosphor was made by putting the $MgCl_2.6H_2O$ and $SiO_2$ and by doping the rare earth element of $LaCl_3.7H_2O$ and $HoCl_3$. The heating rate is $10^{\circ}C/sec$ for the thermoluminescent phosphor. Two peaks are found in the measured $Mg_2SiO_4(La.Ho)$ Tl glow curve at $152^{\circ}C$ and $205^{\circ}C$ when the heating rate is $5^{\circ}C/sec$. The peak value at $205^{\circ}C$ is the most sensitive to X-ray among the glow peaks. The activation energy of the main peak has been estimated by the peak shape method. The estimated activation energies for Ho and La are $0.52{\sim}1.77\;eV$ respectively.

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