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TY - CONF AU - Drees, K.A. AU - Biletskyi, O. AU - Bruno, D. AU - Di Lieto, A. AU - Escallier, J. AU - Heppner, G. AU - Mi, C. AU - Samms, T. AU - Sandberg, J. ED - Yamazaki, Yoshishige ED - Raubenheimer, Tor ED - McCausey, Amy ED - Schaa, Volker RW TI - RHIC Quench Protection Diode Radiation Damage J2 - Proc. of NAPAC2019, Lansing, MI, USA, 01-06 September 2019 CY - Lansing, MI, USA T2 - North American Particle Accelerator Conference T3 - 4 LA - english AB - Each of RHIC’s superconducting magnets is protected by a silicon quench protection diode (QPD). In total, RHIC has over 800 diodes installed inside the cryostat close to the vacuum pipe~[RHICconfig]. After years of operation with high energy heavy ion beams we experienced a first permanently damaged QPD in the middle of our FY2016 Au Au run and a second damaged diode in the following year. In 2016 the run had to be interrupted by 19 days to replace the diode, in 2017 RHIC could still operate with a reduced ramping speed of the superconducting magnets. Both diodes were replaced and examined "cold" as well as "warm". This paper reports on what we have learned so far about the conditions leading up to the damage as well as the damage itself. PB - JACoW Publishing CP - Geneva, Switzerland SP - 831 EP - 833 KW - radiation KW - kicker KW - experiment KW - detector KW - laser DA - 2019/10 PY - 2019 SN - 2673-7000 SN - 978-3-95450-223-3 DO - doi:10.18429/JACoW-NAPAC2019-WEPLH11 UR - http://jacow.org/napac2019/papers/weplh11.pdf ER -