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Simulation of Energy Absorption Distribution using of Lead Shielding in the PET/CT
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 Title & Authors
Simulation of Energy Absorption Distribution using of Lead Shielding in the PET/CT
Jang, Dong-Gun; Kim, Changsoo; Kim, Junghoon;
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Energy absorption distribution according to lead shielding for 511 keV ray was evaluated using a Monte Carlo simulation in PET/CT. Experimental method was performed about the depth of skin surface(0.07), lens(3) and the depth(10) was conducted by using ICRU Slab phantom. Difference of energy absorption distribution according to lead thickness and effect of air gap according to distance of lead and phantom. As a result, study showed that using a lead shielding makes high energy distribution by backscatter electron. As a distance between lead and phantom increased, energy absorption distribution gradually decreased. 9 cm or more air gap should exist to prevent effect of backscatter electron which reaches skin surface, when 0.25 mmPb shielding is used. Also 1 cm or more air gap was needed to prevent the effect in 0.5 mmPb. If air gap was not concerned, 0.75 mm or more lead thickness was necessary to prevent effect of backscatter electron.
backscatter electron;Shielded;
 Cited by
Benjamin Guillet, Pierre Quentin, Serge Waultier, P, "Technologist Radiation Exposure in Routine Clinical Practice with 18F-FDG PET", Journal of Nuclear Medicine Technology, Vol. 33, No. 3, pp.175-179, 2005.

Fiona O. Roberts, Dishan H. Gunawardana, Kunthi Pathmaraj, et al, "Radiation Dose to PET Technologists and Strategies to lower Occupational Exposure", Journal of Nuclear Medicine Technology, Vol. 33, No. 1, pp.44-47, 2005.

ICRP, "Recommendations of the International Commission on Radiological Protection", Ann ICRP, Vol. 21, pp.1-201, 1991. crossref(new window)

Korea Standards & certifications, "Medical X-ray Protective Aprons", KS P 6023, 2007.

Myeong-Hwan Park, Deok-Moon Kwon, "Measurement of Apron Shielding rate for X-ray and Gamma ray", Korean Society Radiological Science, Vol. 30, No. 3, pp.245-250, 2007.

Andrew J Reilly, "Report 78 Spectrum Processor", IPEM, 1997.

Yong-Gil Kang, "Textbook of nuclear Medicine", pp.81-86, 2013.

Hongmoon Jung, June ho Cho, Jaeeun Jung, et al, "Evaluation of the Radiation Dosage Flowing out of the Hot Cell During Synthesis of $^{18}FDG$", Journal of the Korean Society of Radiology, Vol. 7, No. 5, pp365-369, 2013. crossref(new window)

Bong-Sik Lim, "Radiation Exposure Dose on Persons Engaged in Radiation-related Industries in Korea", The Korean Society of Radiological Science, Vol. 29, No. 3, pp.185-195, 2006.

Seongmin Baek, Eunsung Jang, "Comparative evaluation of radiation exposure in radiation-related workers", Journal of the Korean Society of Radiology, Vol. 5, No. 4, pp195-200, 2011. crossref(new window)

Seoung-wook Lee, Seung-hyun Kim, Bong-geun Ji, et al, "A Consideration of Apron's Shielding in Nuclear Medicine Working Environment", korean J. Nucl. Med. Technol., Vol. 18, No. 1, pp.110-114, 2014.

Soo-Kyung Na, Byung-Sub Park, Yong-Gil Kang, "Study of occupational exposure in PET/CT", journal of Digital Convergence, Vol. 10, No. 11, pp.449-457, 2012.

Yong Hyun Chung, Cheol-Ha Beak, Seung-Jae Lee, "Monte Carlo Simulation Codes for Nuclear Medicine Imaging", Med. Mol. Imaging, Vol. 42, No. 2, pp.127-136, 2008.

ICRU, "Measurement of Dose Equivalents from External Photon and Electron Radiations", Report 47 ICRU Publications, 1998.

Dae Moo Shim, Yu Mi Kim, Sung Kyun Oh, et al, "Radiation Induced Hand Necrosis of an Orthopaedic Surgeon Who Had Treated a Patient with Fluoroscopy-Guided Spine Injection", The Journal of the Korean Orthopaedic Association, Vol. 49, No. 3 , pp.250-254, 2014. crossref(new window)

Wang-Hui Lee, Sung-Min Ahn, "Evaluation of Reductive Effect of Exposure Dose by Using Air Gap Apron in Nuclear Medicine Related Work Dose", The Korea Contents Association, Vol. 14, No. 12, pp.845-853, 2014. crossref(new window)