Demonstration of Loss Reduction Using a Thin Bent Crystal to Shadow an Electrostatic Septum During Resonant Slow Extraction

Velotti, Francesco; Addesa, Francesca; Afonin, Alexander; Bestmann, Patrick; Borg, Johan; Butcher, Mark; Calviani, Marco; Chesnokov, Yuri; Denisov, Alexander; Di Castro, Mario; Donzé, Mathieu; Durum, Arthur; Esposito, Luigi Salvatore; Fraser, Matthew; Galluccio, Francesca; Garattini, Marco; Gavrikov, Yury; Gilardoni, Simone; Goddard, Brennan; Hall, Geoff; Iacoangeli, Francesco; Ivanov, Yury; James, Tom; Kain, Verena; Koznov, Mikhail Aleksandrovich; Lendaro, Jerome; Maisheev, Vladimir; Malyarenko, Luodmila; Masi, Alessandro; Mirarchi, Daniele; Murtas, Fabrizio; Pari, Michelangelo; Pesaresi, Mark; Prieto, Javier; Redaelli, Stefano; Rossi, Roberto; Sandomirskiy, Yury; Scandale, Walter; Seidenbinder, Regis; Serrano Galvez, Pablo; Skorobogatov, V.; Stoel, Linda; Yanovich, Andrey; Zamantzas, Christos; Zhovkovska, Valeriia

doi:10.18429/JACoW-IPAC2019-THXXPLM2

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RIS citation export for THXXPLM2: Demonstration of Loss Reduction Using a Thin Bent Crystal to Shadow an Electrostatic Septum During Resonant Slow Extraction

TY  - CONF
AU  - Velotti, F.M.
AU  - Addesa, F.M.
AU  - Afonin, A.G.
AU  - Bestmann, P.
AU  - Borg, J.E.
AU  - Butcher, M.E.J.
AU  - Calviani, M.
AU  - Chesnokov, Y.A.
AU  - Denisov, A.S.
AU  - Di Castro, M.
AU  - Donzé, M.
AU  - Durum, A.A.
AU  - Esposito, L.S.
AU  - Fraser, M.A.
AU  - Galluccio, F.
AU  - Garattini, M.
AU  - Gavrikov, Y.
AU  - Gilardoni, S.S.
AU  - Goddard, B.
AU  - Hall, G.
AU  - Iacoangeli, F.
AU  - Ivanov, Yu.M.
AU  - James, T.
AU  - Kain, V.
AU  - Koznov, M.A.
AU  - Lendaro, J.
AU  - Maisheev, V.A.
AU  - Malyarenko, L.G.
AU  - Masi, A.
AU  - Mirarchi, D.
AU  - Murtas, F.
AU  - Pari, M.
AU  - Pesaresi, M.
AU  - Prieto, J.
AU  - Redaelli, S.
AU  - Rossi, R.
AU  - Sandomirskiy, Yu.E.
AU  - Scandale, W.
AU  - Seidenbinder, R.
AU  - Serrano Galvez, P.
AU  - Skorobogatov, V.
AU  - Stoel, L.S.
AU  - Yanovich, A.A.
AU  - Zamantzas, C.
AU  - Zhovkovska, V.
ED  - Boland, Mark
ED  - Tanaka, Hitoshi
ED  - Button, David
ED  - Dowd, Rohan
ED  - Schaa, Volker RW
ED  - Tan, Eugene
TI  - Demonstration of Loss Reduction Using a Thin Bent Crystal to Shadow an Electrostatic Septum During Resonant Slow Extraction
J2  - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019
CY  - Melbourne, Australia
T2  - International Particle Accelerator Conference
T3  - 10
LA  - english
AB  - A proof-of-principle experiment demonstrating the feasibility of using a thin, bent crystal aligned upstream of an extraction septum (ES) to increase the efficiency of the third-integer resonant slow extraction process has been carried out at the CERN Super Proton Synchrotron (SPS). With the primary aim of reducing the beam loss and induced radio-activation of the SPS, the crystal was aligned to both the beam and the septum to reduce by up to 40% the beam intensity impinging the ES and increase the intensity entering the external transfer line. In this contribution, we introduce the concept and the prototype system that was installed in 2018 before reporting in detail on the dedicated program of machine development studies carried out to characterise its performance and demonstrate operational feasibility. The performance reach and compatibility with other loss reduction techniques proposed to further increase the extraction efficiency, such as phase space folding with octupoles, is discussed in view of future high intensity operation.
PB  - JACoW Publishing
CP  - Geneva, Switzerland
SP  - 3399
EP  - 3403
KW  - extraction
KW  - operation
KW  - septum
KW  - optics
KW  - experiment
DA  - 2019/06
PY  - 2019
SN  - 978-3-95450-208-0
DO  - DOI: 10.18429/JACoW-IPAC2019-THXXPLM2
UR  - http://jacow.org/ipac2019/papers/thxxplm2.pdf
ER  -