Improved Overhead Counting in the NLC Main Linac

This note consider a convention conversion target and Since the length of th concurrent pressure p Abstract: The NLC m replacement of failed feedback. A more ca with less BNS overhe consequence the total Linear Collider Collaboration Tech Notes The NLC m replacement of failed feedback. A more ca with less BNS overhe consequence the total Linear Collider Collaboration Tech Notes to on in the ial. d, the nly the documents a set of expressions used to explore the issue of whether or not it is reasonable al positron source for a Tesla formatted beam. The critical issue is that of energy depositi the comparison of the induced stress with the ultimate tensile strength of the target mater e incident beam pulse is large in comparison to the ratio of beam size to the speed of soun ulse dissipates in a time short compared to the overall pulse duration and one is left with o Improved Overhead Counting in the NLC Main Linac Peter Tenenbaum June 2004 Stanford Linear Accelerator Center Stanford Univ rsity 2575 Sand Hil Road Menlo Park, CA ain linac contains 1,116 RF power units, of which 5% are considered ``spares'' for power units, make-up of the energy gain during an RF breakdown, and energy reful accounting for the effects of beam loading indicates that the NLC can operate ad and a smaller mean phase offset than was originally specified, and that as a number of spares is actually about 7.9% of the total. Improved Overhead Accounting in the NLC Main Linacs P. Tenenbaum LCC-Note-0148 July 21, 2004 Abstract The NLC main linac contains 1,116 RF power units, of which 5% are considered “spares” for replacement of failed power units, make-up of the energy gain during an RF breakdown, and energy feedback. A more careful accounting for the effects of beam loading indicates that the NLC can operate with less BNS overhead and a smaller mean phase offset than was originally specified, and that as a consequence the total number of spares is actually about 7.9% of the total.The NLC main linac contains 1,116 RF power units, of which 5% are considered “spares” for replacement of failed power units, make-up of the energy gain during an RF breakdown, and energy feedback. A more careful accounting for the effects of beam loading indicates that the NLC can operate with less BNS overhead and a smaller mean phase offset than was originally specified, and that as a consequence the total number of spares is actually about 7.9% of the total.