치료 분야의 선량 균일성과 페넘브라는 방사선 치료의 중요한 요소이며, 이는 방사선 치료의 결과에 영향을 미친다. 본 연구에서는 활성 스폿 스캔 전달 시스템의 190 MeV/u 및 260 MeV/u 탄소 빔의 통합 깊이 선량 분포(IDDD)를 FLUKA 몬테 카를로 시뮬레이션에 의해 측정 및 계산했으며, 이차 입자와 산란으로 인한 선량 분포도 고려하였다. PB의 공간 분포를 적합시키고 비교하는 다양한 유형의 펜슬 빔(PB) 모델. 우리는 PB 다발을 이중 가우스 및 이중 가우스 로지스틱 빔 모델로 20×20cm² 처리 필드를 형성하도록 중첩하고 빔 전달 오류가 필드 평탄도와 페넘브라에 미치는 영향을 각각 계산했다. 시뮬레이션된 IDDD는 측정된 값과 잘 일치하는 것으로 나타났다. 삼중 가우스 및 이중 가우스 로지스틱 빔 모델은 시뮬레이션된 선량 분포에 적합하다. 빔 불확실성에서 비롯되는 선량 균일성과 음경에 대한 다양한 영향이 있다. 이러한 결과는 탄소 이온 요법을 이해하는 데 도움이 될 것이며 물리 치료사들은 방사선 요법에서 치료 계획의 커미셔닝 및 최적화에 대한 참조를 제공하는 활성 스캐닝 요법을 위한 빔 특성에 더 친숙하다.
제 1편 : MATLAB 기본편
1. MATLAB 기본사용편 ···················· 003
1.1 MATLAB 시작하기 ·························· 003
명령창(command Window)에서의 입력 005
도움말(Help)의 이용 ······························· 007
1.2 입력 오류의 수정 ····························· 008
계산의 중지 ·············································· 009
MATLAB 종료하기 ································· 009
1.3 연산과 변수의 할당 ·························· 009
연산자 우선순위 ······································· 011
내장함수 ···················································· 012
1.4 데이터의 표현 ··································· 013
1.5 변수의 처리 ······································· 015
변수 이름 ·················································· 015
clear 명령어 ············································· 016
특수변수와 정수 ······································· 017
whos 명령어 ············································ 017
1.6 벡터와 행렬 ······································· 018
벡터 ··························································· 018
행렬 ·························································· 023
스크린 출력과 억제 ································· 024
1.7 랜덤(Random)수와 복소수 ·············· 025
랜덤 수 ····················································· 025
복소수 ······················································· 027
1.8 기호를 이용한 연산 ·························· 028
기호식에서의 치환 ··································· 029
1.9 코드 파일 ·········································· 030
스크립트 코드 파일 ································· 030
코멘트의 추가 ·········································· 032
함수 코드 파일 ···································· 033
사용자 정의함수 ······································ 036
1.10 간단한 그래프의 생성 ····················· 037
ezplot을 이용한 그래프 ·························· 037
plot을 이용한 그래프 ·························· 039
3차원 그래프 ··········································· 042
1.11 MATLAB과 엑셀(Excel)의 접속 043
엑셀 데이터 불러오기 ····························· 043
데이터 가져오기 옵션 ························· 046
스크립트 생성 옵션 ································· 049
함수 생성 옵션 ········································ 049
생성된 데이터를 엑셀파일로 저장하기 ·· 050
제 2편 : 연구논문
The influence of beam delivery uncertainty on dose uniformity and
penumbra for pencil beam scanning in carbon-ion radiotherapy
1. Introduction 51
2. Materials and methods 53
3. Conformation of square field 55
4. Results 57
5. The influence of different types of errors 59
6. Discussion 63
7. References 67
