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TY - CONF AU - Hao, Y. AU - Bai, M. AU - Duan, Z. AU - Luo, Y. AU - Marusic, A. AU - Robert-Demolaize, G. AU - Shen, X. ED - Henderson, Stuart ED - Akers, Evelyn ED - Satogata, Todd ED - Schaa, Volker R.W. TI - Experimental Demonstration of an Interaction Region Beam Waist Position Knob for Luminosity Leveling J2 - Proc. of IPAC2015, Richmond, VA, USA, May 3-8, 2015 C1 - Richmond, VA, USA T2 - International Particle Accelerator Conference T3 - 6 LA - english AB - In this paper, we report on the experimental implementation of the model-dependent control of the interaction region beam waist position (s* knob) at the Relativistic Heavy Ion Collider (RHIC). The s* adjustment provides an alternative way of controlling the luminosity and is the only known method to control the luminosity and to reduce the pinch effect of the future eRHIC. We first demonstrate the effectiveness of the s* knob in luminosity controlling and its application in the future electron ion collider, eRHIC, followed by details of the experimental demonstration of such knob in RHIC. PB - JACoW CP - Geneva, Switzerland SP - 2357 EP - 2359 KW - luminosity KW - optics KW - controls KW - detector KW - experiment DA - 2015/06 PY - 2015 SN - 978-3-95450-168-7 DO - 10.18429/JACoW-IPAC2015-TUPWI048 UR - http://jacow.org/ipac2015/papers/tupwi048.pdf ER -