ICALEPCS2019 - List of Authors (Chin, E.P.)

Paper	Title	Page
MOPHA066	Electronics for LCLS-II Beam Containment System Shut-off	366
MOPHA065	use link to see paper's listing under its alternate paper code
	R.A. Kadyrov, D.G. Brown, E.P. Chin, C.I. Clarke, M. Petree, E. Rodriguez, F. Tao SLAC, Menlo Park, California, USA
	LCLS-II is a new FEL which is under construction at SLAC National Accelerator Laboratory. Its superconducting electron linac is able to produce up to 1.2 MW of beam power. Beam Containment System (BCS) is employed to limit the beam power and prevent excessive radiation in case of electron beam loss or FEL breach. Fast and slow shut-off paths are designed for devices with different response requirements. The system is required to shut-off the beam within 200 µs for some of the fast sensors. Fast path is based on custom electronic designs, and slow path leverages industrial safety-rated PLC hardware. The system spans for 4 km of LCLS-II and combines inputs from about 150 sensors of different complexity. Architecture is based on multiple levels starting with summing sensor inputs locally and to converting them into permits for the shut-off devices. Each level is implemented redundantly. Automated test and manual tests at all levels are implemented in the system. System architecture, electronics design and cable plant challenges are presented below.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-MOPHA066
About •	paper received ※ 27 September 2019 paper accepted ※ 10 October 2019 issue date ※ 30 August 2020
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Page

MOPHA066

Electronics for LCLS-II Beam Containment System Shut-off

366

MOPHA065

use link to see paper's listing under its alternate paper code

R.A. Kadyrov, D.G. Brown, E.P. Chin, C.I. Clarke, M. Petree, E. Rodriguez, F. Tao
SLAC, Menlo Park, California, USA

LCLS-II is a new FEL which is under construction at SLAC National Accelerator Laboratory. Its superconducting electron linac is able to produce up to 1.2 MW of beam power. Beam Containment System (BCS) is employed to limit the beam power and prevent excessive radiation in case of electron beam loss or FEL breach. Fast and slow shut-off paths are designed for devices with different response requirements. The system is required to shut-off the beam within 200 µs for some of the fast sensors. Fast path is based on custom electronic designs, and slow path leverages industrial safety-rated PLC hardware. The system spans for 4 km of LCLS-II and combines inputs from about 150 sensors of different complexity. Architecture is based on multiple levels starting with summing sensor inputs locally and to converting them into permits for the shut-off devices. Each level is implemented redundantly. Automated test and manual tests at all levels are implemented in the system. System architecture, electronics design and cable plant challenges are presented below.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-MOPHA066

About •

paper received ※ 27 September 2019 paper accepted ※ 10 October 2019 issue date ※ 30 August 2020

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)