THERMAL CYCLE TIME SIMULATION ANALYSIS OF A CROTCH PHOTON ABSORBER IN AN X-RAY STORAGE RING

The National Synchrotron Light Source is an electron accelerator facility at Brookhaven National Laboratory. To improve on the brightness of its synchrotron radiation it is important that this accelerator operates at its maximum design currents of excess of 500 mA at 2.5 GeV. Currently, it is running at 350 mA at the same energies of 2.5 GeV. With on-going developments and advancements in beam technology instrumentation, the National Synchrotron Light Source looks to maintain its position at the forefront of world class beam accelerators. But in order to accomplish this, this accelerator must run at higher currents. The aim of this study is to test the capability of certain components in the accelerator to operate under these increased currents using Finite Element Analysis and prototype experimentation. Research efforts will be devoted to determine whether the component fails due to operating the beam at higher current levels. Full studies of the component's performance will be conducted along with any necessary improvements needed to operate at these levels. It has been concluded that certain components in the accelerator might be subject to failure under these upgrades. Among these components is the exit chamber crotch component, which is the direct link between the actual accelerator storage ring and the beam ports. This component is cyclically subjected to a high temperature and its design life as this temperature is increased, is under question. Analyzing this component through finite element analysis as well as simulating a prototype beam on the actual part in experiment is essential in testing and verifying whether this component needs upgrading or is capable of handling the increased heat load