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RIS citation export for MOPMR043: Optical System Design for The ESS Proton Beam and Target Diagnostics

AU - Ibison, M.G.
AU - Adli, E.
AU - Gjersdal, H.
AU - Shea, T.J.
AU - Thomas, C.A.
AU - Welsch, C.P.
AU - de la Cour, N.
ED - Petit-Jean-Genaz, Christine
ED - Kim, Dong Eon
ED - Kim, Kyung Sook
ED - Ko, In Soo
ED - Schaa, Volker RW
TI - Optical System Design for The ESS Proton Beam and Target Diagnostics
J2 - Proc. of IPAC2016, Busan, Korea, May 8-13, 2016
C1 - Busan, Korea
T2 - International Particle Accelerator Conference
T3 - 7
LA - english
AB - The high power and low emittance of the European Spallation Source (ESS) proton beam require a robust protection strategy for the spallation target and its surroundings. For this, the beam will be imaged on passing through scintillator screens coating both the proton beam window (PBW) on exit from the accelerator, and the entry window to the target (TW). Light from the screens must be transported to remote cameras through a 4m high shielding plug of limited aperture. At the same time, the optical path must not compromise the integrity of the shield against neutrons and interaction products. We present the theory underlying the design of the reflective optics for efficient transmission of high-quality images to provide the desired level of protection to the machine, and describe its implementation in the Zemax software tool, as well as the predicted imaging performance. We also consider how the requirements of environment (thermal and radiation), initial alignment and ongoing maintenance for the optical system will be met. Finally we comment on the applicability of optics of this type for diagnostic systems in similar situations at other neutron sources and elsewhere.
CP - Geneva, Switzerland
SP - 347
EP - 349
KW - target
KW - optics
KW - proton
KW - radiation
KW - diagnostics
DA - 2016/06
PY - 2016
SN - 978-3-95450-147-2
DO - 10.18429/JACoW-IPAC2016-MOPMR043
UR - http://jacow.org/ipac2016/papers/mopmr043.pdf
ER -