
RT-W11_2-A
Quiz
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Science
•
University
•
Medium
Chulhwan Hwang
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6 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
1.PDD를 정의하는 수식은?
PDD = (Dd / Dm) × 100
PDD = (Dm / Dd) × 100
PDD = Dd × Dm
PDD = Dd - Dm
PDD = Dm / Depth
2.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
2. 심부선량백분율(PDD)에 영향을 미치는 인자가 아닌 것은?
방사선의 에너지
조사야의 형태
필터에 의한 선속경화
선원과 피부 사이 거리
선원과 회전중심 거리
3.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
3.심부선량에서 종양 선량(tumor dose)의 정의는?
피부 표면에서의 총선량
장기에 흡수된 선량
종양 중심에 전달되는 흡수선량
조사야 전체에 걸친 선량
필터를 거친 평균 선량
4.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
4.SSD가 일정한 조건에서 선속의 중심축 상에서 깊이에 따른 선량의 상대적 변화에 해당하는 것은?
TAR
PDD
TMR
TPR
Surface Dose
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
5. 다음 중 심부선량백분율(PDD)에 영향을 미치는 인자가 아닌 것은?
조사야
깊이
에너지
SSD
SAD
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
6.방사선의 평균 에너지를 증가시키는 필터의 효과는?
선속의 약화와 심부선량 감소
산란선 감소와 표면선량 증가
선속경화와 심부선량백분율 증가
조사야 크기 축소와 선량 감소
산란선 증가와 표면선량 감소
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