PMID: 12772983May 30, 2003Paper

Thin CdTe detector in diagnostic x-ray spectroscopy

Medical Physics
Satoshi Miyajima

Abstract

A CdTe Schottky diode detector of 1 mm thickness was employed in diagnostic x-ray spectroscopy. The detector response to monoenergetic photons was investigated with gamma rays from the calibration sources (241Am and 133Ba). As spectral distortion due to carrier trapping, known as tailing, was small in gamma-ray spectra, the effects of carrier trapping were not taken into account in the calculation of response functions. The distortion due to the transmission of primary x rays and the escape of secondary x rays (K-fluorescent x rays and Compton-scattered x rays) from the crystal was included in the calculated response functions. X-ray spectra corrected using the response functions were in good agreement with the reference spectra obtained with a high-purity germanium detector. The results indicated that correction for the distortion due to carrier trapping is not necessary when using a thin CdTe detector in diagnostic x-ray spectroscopy.

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Dec 13, 2002·Physics in Medicine and Biology·Satoshi Miyajima, Kotaro Imagawa

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Citations

May 8, 2013·Radiological Physics and Technology·Tomonobu HabaShuji Koyama
Dec 14, 2006·Health Physics·Paulo R CostaLinda V E Caldas
Jul 30, 2011·Nihon Hoshasen Gijutsu Gakkai zasshi·Masao Matsumoto
Apr 10, 2012·Medical Physics·Huanjun Ding, Sabee Molloi
Jan 21, 2012·Applied Radiation and Isotopes : Including Data, Instrumentation and Methods for Use in Agriculture, Industry and Medicine·Roseli Künzel, Emico Okuno
Dec 16, 2011·Applied Radiation and Isotopes : Including Data, Instrumentation and Methods for Use in Agriculture, Industry and Medicine·A TomalM E Poletti
Dec 27, 2005·Applied Radiation and Isotopes : Including Data, Instrumentation and Methods for Use in Agriculture, Industry and Medicine·M KrmarK Ganezer
Jan 21, 2015·Applied Radiation and Isotopes : Including Data, Instrumentation and Methods for Use in Agriculture, Industry and Medicine·A TomalM E Poletti
Apr 4, 2015·Medical Physics·H A DuisterwinkelS Brandenburg
Sep 21, 2007·Physics in Medicine and Biology·Magdalena Bazalova, Frank Verhaegen
Jan 10, 2008·Physics in Medicine and Biology·Derek LiuFrank Verhaegen
Aug 16, 2011·Physics in Medicine and Biology·Shannon G FritzKenneth L Matthews
Dec 17, 2014·Physics in Medicine and Biology·Wei ZhaoKevin Royalty
Aug 22, 2009·Journal of Radiation Research·Khatayut NigaprukeWiwat Youngdee
Apr 27, 2021·Physics in Medicine and Biology·Steffen KetelhutGerhard Hilgers

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