Thermal Absorber for High Power Density Photon BEAMS

摘要

The high power density of multipole wiggler radiation from the x-ray ring at the National Synchrotron Light Source at Brookhaven National Laboratory precludes the use of normal incidence water cooled masks and shutters due to high metal temperatures and resulting high stresses and/or deflections and the possibility of cooling water boiling. One way the power density can be reduced is by positioning the absorber surface at a small angle to the beam, a technique first developed by Lawrence Berkeley Laboratory. Finite element analyses results for temperatures, displacements and stresses are presented in this paper for a thermal absorber designed for ultra-high vacuum operation. (ERA citation 11:026056)