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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2019.1
- 수록면
- 1,406 - 1,416 (11page)
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In this research, a multi-slit prompt-gamma camera was developed to locate the distal dose falloff of theproton beam spots in spot scanning proton therapy. To see the performance of the developed camera,therapeutic proton beams were delivered to a solid plate phantom and then the prompt gammas fromthe phantom were measured using the camera. Our results show that the camera locates the 90% distaldose falloff (¼ d90%), within about 2e3 mm of error for the spots which are composed 3.8 108 protonsor more. The measured location of d90% is not very sensitive to the irradiation depth of the proton beam(i.e., the depth of proton beam from the phantom surface toward which the camera is located). Considering the number of protons per spot for the most distal spots in typical treatment cases (i.e., 2 Gydose divided in 2 fields), the camera can locate d90% only for a fraction of the spots depending on thetreatment cases. However, the information of those spots is still valuable in that, in the multi-slit promptgammacamera, the distal dose falloff of the spots is located solely based on prompt gamma measurement,i.e., not referring to Monte Carlo simulation
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참고문헌 (26)
참고문헌 신청
T. F. DeLaney / 2008 / Proton and Charged Particle Radiotherapy / Lippincott Williams & Wilkins
U. Oelfke / 1996 / Proton dose monitoring with PET : quantitative studies in Lucite / Phys. Med. Biol 41:177~196
M. Moteabbed / 2011 / Monte Carlo patient study on the comparison of prompt gamma and PET imaging for range verification in proton therapy / Phys. Med. Biol 56:1063~1082
C.H. Min / 2006 / Prompt gamma measurements for locating the dose falloff region in the proton therapy / Appl. Phys. Lett 89
J. Smeets / 2012 / Prompt gamma imaging with a slit camera for real-time range control in proton therapy / Phys. Med. Biol 57:3371~3405
U. Oelfke / 1996 / Proton dose monitoring with PET : quantitative studies in Lucite / Phys. Med. Biol 41:177~196
M. Moteabbed / 2011 / Monte Carlo patient study on the comparison of prompt gamma and PET imaging for range verification in proton therapy / Phys. Med. Biol 56:1063~1082
C.H. Min / 2006 / Prompt gamma measurements for locating the dose falloff region in the proton therapy / Appl. Phys. Lett 89
J. Smeets / 2012 / Prompt gamma imaging with a slit camera for real-time range control in proton therapy / Phys. Med. Biol 57:3371~3405
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