Design and modeling of 40 keV X-ray optics for Titan experiment

Bajt, S

Lawrence Livermore National Laboratory

关键词: Lawrence Livermore National Laboratory;    Mirrors;    Incidence Angle;    Thickness;    Simulation;   

DOI  :  10.2172/896572
RP-ID  :  UCRL-TR-222379
RP-ID  :  W-7405-ENG-48
RP-ID  :  896572

美国|英语

来源: UNT Digital Library

【 摘 要 】

In 2004 we designed and fabricated a 40 keV W/SiC multilayer coated mirrors with 2.0 nm period thickness that were tested at RAL (UK) in winter 2004/2005. The mirrors reflected from 35 to 70 keV (different grazing incidence angles) and showed high reflectivity. However, there was not enough beamtime at RAL to obtain quantitative results. Similar experiment will now be performed in Titan facility (LLNL). In this report we design and model multilayers with even shorter period than the ones used in 2004/2005 experiments. Our goal is to fabricate 1 nm period W/SiC multilayers with high reflectivity. This will enable operation at higher angle of grazing incidence and simplified the mounting fixture.