Reconstructive correction of aberrations in nuclear particle spectrographs.
Reconstructive correction of aberrations in nuclear particle spectrographs.
复制标题
核粒子光谱仪像差的重建校正。
DOI：
10.1103/physrevc.47.537
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发表时间：
1993
期刊：
影响因子：
--
通讯作者：
Zeller
中科院分区：
文献类型：
--
作者：
Berz;Joh;Nolen;Sherrill;Zeller
根据焦平面附近两个平面上的位置测量值，计算诸如反应能和散射角等修正后的感兴趣数据以及重构的轨迹。该技术仅受位置测量的精度、非相干光斑尺寸以及传递映射的精度所限制。在实际应用中，该方法可表述为一个非线性映射的反演，并在微分代数框架中实现。该方法被应用于校正密歇根州立大学国家超导回旋加速器实验室正在建造的S800光谱仪以及另外两台高分辨率光谱仪中的剩余像差。
computation of the corrected data of interest such as reaction energy and scattering angle as well as the reconstructed trajectories in terms of position measurements in two planes near the focal plane. The technique is only limited by the accuracy of the position measurements, the incoherent spot sizes, and the accuracy of the transfer map. In practice the method can be expressed as an inversion of a nonlinear map and implemented in the differential algebraic framework. The method is applied to correct residual aberrations in the S800 spectrograph which is under construction at the National Superconducting Cyclotron Laboratory at Michigan State University and to two other high resolution spectrographs.