[논문]Dosimetric characterisation of bismuth shields in CT: measurements and Monte Carlo simulations.

Kim, Sangroh; Yoshizumi, Terry T; Frush, Donald P; Anderson-Evans, Colin; Toncheva, Greta

doi:10.1093/rpd/ncp025

Dosimetric characterisation of bismuth shields in CT: measurements and Monte Carlo simulations.

Radiation protection dosimetry, v.133 no.2, 2009년, pp.105 - 110

Kim, Sangroh , Yoshizumi, Terry T , Frush, Donald P , Anderson-Evans, Colin , Toncheva, Greta

Abstract ▼ AI-Helper

Although bismuth shields are frequently used in radiology to reduce radiation dose, its mechanism has not been fully investigated. Dosimetric characteristics of bismuth shields in computed tomography (CT) were assessed with ion chamber and Monte Carlo (MC) simulations. Primary attenuation and backscatter effects of paediatric (2-ply) and adult (4-ply) bismuth shields were measured. Simulated CT beams were used for ion chamber measurements. Radiation doses were measured free-in-air and in the tissue-equivalent slabs. MC simulations for the same settings were also performed. Mean dose reductions from primary attenuation were 23% (2-ply) and 40% (4-ply). The dose increase from backscatter was 2% for both shields. MC simulations for primary beam dose reduction were 20% (2-ply) and 38% (4-ply); the backscatter dose increase was around 6% for both shields. In summary, primary attenuation is the major factor that introduces the dose reduction in bismuth and the dose increase from backscatter is negligible.

참고문헌 (21)

1538-5159 Health Physics Mettler 95 5 502 2008 10.1097/01.HP.0000326333.42287.a2

상세보기
0361-803X American Journal of Roentgenology Brenner 176 2 289 2001 10.2214/ajr.176.2.1760289

상세보기
0094-2405 Medical physics Brenner 28 11 2387 2001 10.1118/1.1415074

상세보기
0301-0449 Pediatric radiology Brenner 32 4 228 2002 10.1007/s00247-002-0671-1

상세보기
0033-8419 Radiology Hopper 205 3 853 1997 10.1148/radiology.205.3.9393547

상세보기
0195-6108 American Journal of Neuroradiology Hopper 22 6 1194 2001

상세보기
0009-9260 Clinical radiology McLaughlin 59 5 446 2004 10.1016/j.crad.2003.10.016

상세보기
0361-803X American Journal of Roentgenology Mukundan 188 6 1648 2007 10.2214/AJR.06.1146

상세보기
0094-2405 Medical physics Perisinakis 32 4 1024 2005 10.1118/1.1881852

상세보기
0938-7994 European radiology Vollmar 18 8 1674 2008 10.1007/s00330-008-0934-9

상세보기
0361-803X American Journal of Roentgenology Fricke 180 2 407 2003 10.2214/ajr.180.2.1800407

상세보기
0361-803X American Journal of Roentgenology Coursey 190 1 W54 2008 10.2214/AJR.07.2017

상세보기
0031-9155 Physics in medicine and biology Verhaegen 44 7 1767 1999 10.1088/0031-9155/44/7/315

상세보기
0094-2405 Medical physics Bhat 26 2 303 1999 10.1118/1.598517

상세보기
0031-9155 Physics in medicine and biology Ay 49 21 4897 2004 10.1088/0031-9155/49/21/004

상세보기
0031-9155 Physics in medicine and biology Ng 45 5 1309 2000 10.1088/0031-9155/45/5/315

상세보기
0094-2405 Medical physics Mainegra-Hing 33 8 2683 2006 10.1118/1.2219331

상세보기
0031-9155 Physics in medicine and biology Ding 52 6 1595 2007 10.1088/0031-9155/52/6/004

상세보기
0094-2405 Medical physics Kruger 27 8 1915 2000 10.1118/1.1287440

상세보기
0094-2405 Medical physics Rogers 22 5 503 1995 10.1118/1.597552

상세보기
0094-2405 Medical physics Kawrakow 32 7 2320 2005 10.1118/1.1943808

상세보기

내보내기 구분	파일저장 인쇄 메일전송
구성항목	기본정보 상세정보 관리번호, 논문명, 저널/프로시딩명, 저자 , 발행년, 권, 호, 시작페이지, 끝페이지, 발행기관 관리번호, 논문명, 대등논문명, 저자 , 저널/프로시딩명, 발행기관, 발행년, 발행언어, 권, 호, 시작페이지, 끝페이지, ISBN, ISSN, 주제분야, 키워드, 초록(한글), 초록(영문), 저자(소속기관)
저장형식	Text(ASCII format) Excel format RefWorks Direct Export RIS format (for Reference Manager, ProCite, EndNote), Scholar's Aids, Mendeley
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
안내	총 건의 자료가 검색되었습니다. 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오. ~ Text(ASCII format) Excel format

연합인증

Dosimetric characterisation of bismuth shields in CT: measurements and Monte Carlo simulations.

Abstract ▼ AI-Helper

참고문헌 (21)

이 논문을 인용한 문헌

관련 콘텐츠

원문 URL 링크

이 논문과 함께 이용한 콘텐츠

AI-Helper ※ AI-Helper는 오픈소스 모델을 사용합니다.

선택된 텍스트