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RIS citation export for TUC3O07: Safety Integrity Level (SIL) Verification for SLAC Radiation Safety Systems

TY - CONF
AU - Tao, F.
AU - Carrone, E.
AU - Murphy, J.M.
AU - Turner, K.T.
ED - Corvetti, Lou
ED - Riches, Kathleen
ED - Schaa, Volker RW
TI - Safety Integrity Level (SIL) Verification for SLAC Radiation Safety Systems
J2 - Proc. of ICALEPCS2015, Melbourne, Australia, 17-23 October 2015
C1 - Melbourne, Australia
T2 - International Conference on Accelerator and Large Experimental Physics Control Systems
T3 - 15
LA - english
AB - SIL is a key concept in functional safety standards: it is a performance measure on how reliable is a safety system performing a particular safety function. In the system design stage, SIL verification must be performed to prove that the SIL achieved meets/exceeds the SIL assigned during risk assessment, to comply with standards. Unlike industrial applications, where safety systems are usually composed of certified devices or devices with long usage history, safety systems in large physics laboratories are less standardized and more complex in terms of system architecture and devices used. In addition, custom designed electronics are often employed, with limited reliability information. Verifying SIL for these systems requires in-depth knowledge of reliability evaluation. In this paper, it is demonstrated how to determine SIL using SLAC radiation safety systems (Personnel Protection System (PPS) and Beam Containment System (BCS)) as examples. PPS utilizes commercial safety rated devices, while BCS also contains customized electronics. Choice of standards, methods of evaluation, reliability data gathering process (both from industry and from hardware development) are also discussed.
PB - JACoW
CP - Geneva, Switzerland
SP - 561
EP - 564
KW - controls
KW - PLC
KW - radiation
KW - electronics
KW - operation
DA - 2015/12
PY - 2015
SN - 978-3-95450-148-9
DO - 10.18429/JACoW-ICALEPCS2015-TUC3O07
UR - http://jacow.org/icalepcs2015/papers/tuc3o07.pdf
ER -