CERN Accelerating science

SPS and CNGS

新增:
2017-06-21
10:10
The Future of Superconducting Technology for Particle Accelerators / Yamamoto, Akira (High Energy Accelerator Research Organization (JP))
Introduction: - Colliders constructed and operated - Future High Energy Colliders under Study - Superconducting Phases and Applications - Possible Choices among SC Materials Superconducting Magnets and the Future - Advances in SC Magnets for Accelerators - Nb3Sn for realizing Higher Field - NbTi to Nb3Sn for realizing High Field (> 10 T) - HL-LHC as a critical milestone for the Future of Acc [...]
CERN-ACC-SLIDES-2017-0008.
- 2015. - 56 p.
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2017-06-17
07:13
On-line dispersion estimation and correction scheme for the Compact Linear Collider / Pfingstner, J (Oslo U.) ; Adli, E (Oslo U.) ; Schulte, D (CERN)
The Compact Linear Collider (CLIC) has stringent component alignment tolerances in order to preserve the ultralow emittance of the utilized particle beams. Beam-based alignment techniques have been designed to relax these tolerances to realizable values. [...]
2017 - 16 p. - Published in : Phys. Rev. Accel. Beams 20 (2017) 011006 Fulltext: PDF;

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2017-06-17
07:13
Operational performance of the CERN injector complex with transversely split beams / Abernethy, S (Queen's U., Kingston ; CERN) ; Akroh, A (CERN) ; Bartosik, H (CERN) ; Blas, A (CERN) ; Bohl, T (CERN) ; Cettour-Cave, S (CERN) ; Cornelis, K (CERN) ; Damerau, H (CERN) ; Gilardoni, S (CERN) ; Giovannozzi, M (CERN) et al.
With the progress made in 2015, the beams produced by the CERN Proton Synchrotron using multiturn extraction (MTE) have been delivered to the Super Proton Synchrotron (SPS) for the fixed-target physics run. Operation successfully started in the second half of September 2015 and continued until the end of the proton physics program by mid November. [...]
2017 - 21 p. - Published in : Phys. Rev. Accel. Beams 20 (2017) 014001 Fulltext: PDF;

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2017-06-16
14:53
Beam Measurements of the Longitudinal impedance of the CERN Super Proton Synchrotron / Lasheen, Alexandre
One of the main challenges of future physics projects based on particle accelerators is the need for high intensity beams [...]
CERN-THESIS-2017-068 - 134 p.

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2017-06-16
07:09
The light of SESAME: A dream becomes reality / Schopper, H (CERN ; Hamburg U.)
The foundation of the international SESAME synchrotron laboratory in Jordan is described including political, technical, scientific and financial aspects. Following the model of CERN, its objective is not only to promote science but also bring people together from countries with different traditions, religions and mentalities. [...]
2017 - 41 p. - Published in : Riv. Nuovo Cim. 40 (2017) 199-239 Fulltext: PDF;

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2017-06-16
07:09
ISOLDE past, present and future / Borge, Maria J G (CERN ; Gottingen U.) ; Jonson, Bj (Chalmers U. Tech.)
The idea of production of short-lived radioisotopes with the on-line technique has it roots in the early 1950s. In 1964 this became a reality when CERN approved an experiment at the 600 MeV proton synchro-cyclotron, the SC. [...]
2017 - 2 p. - Published in : J. Phys. G 44 (2017) 044011
- Published in : J. Phys. G 44 (2017) 079501

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2017-06-16
07:09
Dump system concepts for the Future Circular Collider / Bartmann, W (CERN) ; Atanasov, M (CERN) ; Barnes, M J (CERN) ; Borburgh, J (CERN) ; Burkart, F (CERN) ; Goddard, B (CERN) ; Kramer, T (CERN) ; Lechner, A (CERN) ; Ull, A Sanz (CERN) ; Schmidt, R (CERN) et al.
The Future Circular Collider (FCC-hh) beam dump system must provide a safe and reliable extraction and dilution of the stored beam onto a dump absorber. Energy deposition studies show that damage limits of presently used absorber materials will already be reached for single bunches at 50 TeV. [...]
2017 - 8 p. - Published in : Phys. Rev. Accel. Beams 20 (2017) 031001 Fulltext: PDF;

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2017-06-16
07:09
Possibility of high efficient beam extraction from the CERN SPS with a bent crystal. Simulation results / Scandale, W (CERN ; Orsay, LAL ; INFN, Rome) ; Kovalenko, A D (Dubna, JINR) ; Taratin, A M (Dubna, JINR)
The extraction of the SPS beam of 270 GeV/c protons assisted by a bent crystal was studied by simulation. Two methods for delivering the SPS beam onto a crystal were considered: transverse diffusion and orbit bump of the beam. [...]
2017 - 4 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 848 (2017) 166-169

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2017-06-15
16:25
Femtosecond timing-jitter between photo-cathode laser and ultra-short electron bunches by means of hybrid compression / Pompili, Riccardo (Laboratory Nazionali di Frascati) ; Anania, M.P (Laboratory Nazionali di Frascati) ; Bellaveglia, M (Laboratory Nazionali di Frascati) ; Biagioni, A (Laboratory Nazionali di Frascati) ; Castorina, G (Laboratory Nazionali di Frascati and University of Catania) ; Chiadroni, E (Laboratory Nazionali di Frascati) ; Cianchi, A (University of Rome Tor Vergata) ; Croia, M (Laboratory Nazionali di Frascati) ; Di Giovenale, D (Laboratory Nazionali di Frascati) ; Ferrario, M (Laboratory Nazionali di Frascati) et al.
The generation of ultra-short electron bunches with ultra-low timing-jitter relative to the photo-cathode (PC) laser has been experimentally proved for the first time at the SPARC_LAB test-facility (INFN-LNF, Frascati) exploiting a two-stage hybrid compression scheme. The first stage employs RF-based compression (velocity-bunching), which shortens the bunch and imprints an energy chirp on it. [...]
CERN-ACC-2017-0048.- Geneva : CERN, 2017 - Published in : 10.1088/1367-2630/18/8/083033 Fulltext: PDF;

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2017-06-15
06:38
Quench Protection of a 16-T Block-Coil Dipole Magnet for a 100-TeV Hadron Collider Using CLIQ / Ravaioli, E (CERN) ; Ghini, J Blomberg (CERN) ; Datskov, V I (CERN) ; Kirby, G (CERN) ; Maciejewski, M (CERN) ; Sabbi, G (LBL, Berkeley) ; ten Kate, H H J (CERN) ; Verweij, A P (CERN)
Abstract: Protection against the effects of a quench is a crucial challenge for 16-T-class superconducting dipole magnets for a future 100-TeV Hadron collider. To avoid damage due to overheating of the coil's hot spot, heat generated during the quench has to be homogeneously distributed in the winding pack by quickly and uniformly transferring to the normal-state voluminous coil sections. [...]
2016 - Published in : IEEE Trans. Appl. Supercond. 26 (2016) 15795444

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