Saturday, August 19, 2023
问题:根据波数的定义,下面不正确的描述是()。A、与波长成反比B、与频率成正比C、与光子能量成正比D、与波长成正比...
Tuesday, April 16, 2024
Monday, November 20, 2023
问题:用时间飞跃法(TOF)血管成像需利用和采用()。A、流入性增强效应B、流空效应C、相位偏移效应D、预饱和技术...
Monday, March 11, 2024
Tuesday, September 13, 2022
Monday, November 14, 2022
问题:所谓足跟效应就是越靠近阴极,X射线强度下降越多的现象。...
Tuesday, April 16, 2024
Tuesday, April 16, 2024
Tuesday, September 13, 2022
Monday, March 11, 2024
Saturday, August 19, 2023
问题:什么是特殊X射线摄影?试述软X射线摄影、高千伏X射线摄影、体层摄影的基本原理。...
Monday, March 11, 2024
Tuesday, October 10, 2023
Saturday, September 17, 2022
问题:X射线摄影中,康普顿效应对影像质量和患者防护有何利弊....
Tuesday, May 2, 2023
Saturday, September 9, 2023
Saturday, September 17, 2022
Sunday, September 11, 2022
Tuesday, October 24, 2023