SPS Slow Extraction Losses and Activation: Update on Recent Improvements

Fraser, Matthew; Balhan, Bruno; Barna, Daniel; Bartosik, Hannes; Bernhard, Johannes; Bertone, Caterina; Björkman, Daniel; Borburgh, Jan; Brugger, Markus; Brunner, Kristóf; Charitonidis, Nikolaos; Conan, Nadine; Cornelis, Karel; Dutheil, Yann; Esposito, Luigi Salvatore; Garcia Alia, Ruben; Gatignon, Laurent; Genton, Charles-Mathieu; Goddard, Brennan; Heßler, Christoph; Kadi, Yacine; Kain, Verena; Mereghetti, Alessio; Pari, Michelangelo; Patecki, Marcin; Prieto, Javier; Redaelli, Stefano; Roncarolo, Federico; Rossi, Roberto; Scandale, Walter; Solieri, Nicola; Spanggaard, Jens; Stein, Oliver; Stoel, Linda; Velotti, Francesco; Vincke, Helmut

doi:10.18429/JACoW-IPAC2019-WEPMP031

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RIS citation export for WEPMP031: SPS Slow Extraction Losses and Activation: Update on Recent Improvements

TY  - CONF
AU  - Fraser, M.A.
AU  - Balhan, B.
AU  - Barna, D.
AU  - Bartosik, H.
AU  - Bernhard, J.
AU  - Bertone, C.
AU  - Björkman, D.
AU  - Borburgh, J.C.C.M.
AU  - Brugger, M.
AU  - Brunner, K.
AU  - Charitonidis, N.
AU  - Conan, N.
AU  - Cornelis, K.
AU  - Dutheil, Y.
AU  - Esposito, L.S.
AU  - Garcia Alia, R.
AU  - Gatignon, L.
AU  - Genton, C.M.
AU  - Goddard, B.
AU  - Heßler, C.
AU  - Kadi, Y.
AU  - Kain, V.
AU  - Mereghetti, A.
AU  - Pari, M.
AU  - Patecki, M.
AU  - Prieto, J.
AU  - Redaelli, S.
AU  - Roncarolo, F.
AU  - Rossi, R.
AU  - Scandale, W.
AU  - Solieri, N.
AU  - Spanggaard, J.
AU  - Stein, O.
AU  - Stoel, L.S.
AU  - Velotti, F.M.
AU  - Vincke, H.
ED  - Boland, Mark
ED  - Tanaka, Hitoshi
ED  - Button, David
ED  - Dowd, Rohan
ED  - Schaa, Volker RW
ED  - Tan, Eugene
TI  - SPS Slow Extraction Losses and Activation: Update on Recent Improvements
J2  - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019
CY  - Melbourne, Australia
T2  - International Particle Accelerator Conference
T3  - 10
LA  - english
AB  - Annual high intensity requests of over 10¹⁹ protons on target (POT) from the CERN Super Proton Synchrotron (SPS) Fixed Target (FT) physics program continue, with the prospect of requests for even higher, unprecedented levels in the coming decade. A concerted and multifaceted R&D effort has been launched to understand and reduce the slow extraction induced radioactivation of the SPS and to anticipate future experimental proposals, such as SHiP* at the SPS Beam Dump Facility (BDF)**, which will request an additional 4·10¹⁹ POT per year. In this contribution, we report on operational improvements and recent advances that have been made to significantly reduce the slow extraction losses, by up to a factor of 3, with the deployment of new extraction concepts, including passive and active (thin, bent crystal) diffusers and extraction on the third-integer resonance with octupoles. In light of the successful tests of the prototype extraction loss reduction schemes, an outlook and implications for future SPS FT operation will be presented.
PB  - JACoW Publishing
CP  - Geneva, Switzerland
SP  - 2391
EP  - 2394
KW  - extraction
KW  - operation
KW  - octupole
KW  - proton
KW  - alignment
DA  - 2019/06
PY  - 2019
SN  - 978-3-95450-208-0
DO  - DOI: 10.18429/JACoW-IPAC2019-WEPMP031
UR  - http://jacow.org/ipac2019/papers/wepmp031.pdf
ER  -