The BNL National Synchrotron Light Sources W. R. Casey*, NSLS-II BNL

Abstract: Brookhaven National Laboratory has received funds from the Department of Energy to construct National Synchrotron Light Source II, a state of the art facility which will provide advanced capabilities for research in many diverse fields ranging from biology, chemistry and medicine to physics and materials science. Brookhaven has been the home of its current light source — the National Synchrotron Light Source (NSLS) — since the early 1980s. This facility is one of the world’s most widely used scientific facilities and is host every year to more than 2000 users from around the world. However, meeting the critical scientific challenges of our energy future requires new capabilities that NSLS-II will uniquely provide. NSLS-II is designed to deliver beams with world-leading intensity, and will produce x-rays more than 10,000 times brighter than the current NSLS. The characteristics and differences between NSLS and NSLS-II and their importance to radiation safety are discussed in this paper. Radiation safety at the NSLS has been successfully achieved for more than 25 years, and provides a strong footing to build on in the design and operation of NSLS II. The radiological challenges and experiences at the NSLS and the lesson learned for NSLS-II are described. The NSLS-II shielding for hutch and accelerator enclosure, and the planned area monitoring network are presented. Plans for commissioning of NSLS-II in 2012-2013 are also discussed.