【摘要】 利用ＣＴ技术，采用乘代数重建法（ＭＡＲＴ）和加代数重建法（ＡＲＴ），编制出三维图像重建程序ＣＴ３Ｄ，通过对“星光Ⅱ”装置的激光等离子体进行Ｘ光针孔成像的五个方位，对三维重建问题进行数值模拟，计算结果表明ＭＡＲＴ比ＡＲＴ的重建精度高，能满足诊断误差δＩ／Ｉ小于１０％的要求。更多还原

【Abstract】 A CT technique applied to ICF has been developed and a three dimensional (3D) iamge reconstruction program(CT3D) programed in this paper.The program CT3D is numerically studied the 3D reconstructed images of target’s plasma by using a multiplicate algebraic reconstruction technique(MART) and algebraic reconstruction technique(ART) from five pinhole camera images obatined along different sight directions on ‘Xingguang Ⅱ’device,so that 3D images of X ray emitted by laser plasma are obtained.The simulated results showes that athe MART’s reconstructive accurance is better than ART’s and MART can meet the requirement that diagnostication error δI/I is lower than 10%.更多还原