The performance of crystalscintillator with optical fiber wire by using photomultiplier tube and photodiode for radiation measurement

Name: Pawitra Aim-O

Organization : Synchrotron Light Research Institute

Email : pawitra@slri.or.th

Name: Wiwek Phacheerak

Organization : Synchrotron Light Research Institute

Name: Nattaphol Sumano

Organization : Synchrotron Light Research Institute

Name: Preecha Kulthanasomboon

Organization : Synchrotron Light Research Institute

keyword: Crystalscintillator

LCSH: Radiation -- Measurement

LCSH: Optical fibers

LCSH: Optical detectors -- Analysis

Abstract: This research focuses on the study and development of the optic scintillating fiber wire between the crystal scintillator which is made from CsI (Tl) and two types of photosensor, i.e., Si-photodiode and photomultiplier tube. These are designed for gamma-ray and X-ray measurements. The gamma ray was emitted from the Cs-137 radioactive source at 662 keV while X-rays were generated from an X-ray machine. Two types of photosensor have determined the performance of them. The first one is the CsI (Tl) photomultiplier tube with optic fiber wire. This type can activate the gamma radiation at high dose (515 micro-sievert per hour) more than low dose (5 micro-sievert per hour). Meanwhile, the response of X-rays is similar, the performance at 100 – 200 keV is better than 40 – 80 keV. However, the radiation detection results of CsI (Tl) photodiode with optic fiber wire indicated that is more advantages. Because of this, it can respond to gamma radiation at 2.118 to 8.474 milli-sievert per hour and respond to X-rays at 40 – 300 kVp. That means the detection at a wavelength of 0.034 – 0.004 nanometer that complies with the synchrotron radiation. The optic scintillating fiber is a good candidate to be a wire for radiation measurement due to low attenuation, light weight, cost effective, and preventing electromagnetic interference

King Mongkut's University of Technology North Bangkok. Central Library

Address: BANGKOK

Email: library@kmutnb.ac.th

Created: 2022

Modified: 2022-11-23

Issued: 2022-11-23

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BibliograpyCitation : In King Mongkut's Institute of Technology Ladkrabang. Pure and Applied Chemistry International Conference (PACCON 2022) (pp.645-649). Bangkok : King Mongkut's Institute of Technology Ladkrabang

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