問題詳情

53 下列有關 X 光管釋出 X 射束之半值層（HVL）的敘述何者正確？
(A) 1st HVL=2nd HVL=3rd HVL
(B) 1st HVL<2nd HVL<3rd HVL
(C) 1st HVL>2nd HVL>3rd HVL
(D) 1st HVL, 2nd HVL, 3rd HVL互不相關

參考答案

答案：B
難度：適中0.45
統計：A(8),B(9),C(1),D(0),E(0)

用户評論

【用戶】tuyh

【年級】

【評論內容】射束硬化的程度變高