CERN Accelerating science

SPS and CNGS

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2017-11-18
06:51
Cryogenic system configuration for the International Linear Collider (ILC) at mountainous site / Nakai, H (KEK, Tsukuba) ; Okamura, T (KEK, Tsukuba) ; Delikaris, D (CERN) ; Peterson, T (Fermilab) ; Yamamoto, A (KEK, Tsukuba)
The International Linear Collider (ILC) plans to make use of ten cryoplants for its main linacs, each providing 19 kW at 4.5 K equivalent and among of it 3.6 kW at 2 K. Each cryoplant will consist of various cryogenic components such as a 4.5 K refrigerator cold box, a 2 K refrigerator cold box, and helium compressors and so on. [...]
2017 - Published in : IOP Conf. Ser. Mater. Sci. Eng. 171 (2017) 012036 Fulltext: PDF;

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2017-11-18
06:51
Field Quality Measurements in the FNAL Twin-Aperture 11 T Dipole for LHC Upgrades / Strauss, T (Fermilab) ; Apollinari, G (Fermilab) ; Barzi, E (Fermilab) ; Chlachidze, G (Fermilab) ; Di Marco, J (Fermilab) ; Nobrega, F (Fermilab) ; Novitski, I (Fermilab) ; Stoynev, S (Fermilab) ; Turrioni, D (Fermilab) ; Velev, G (Fermilab) et al.
FNAL and CERN are developing an 11 T Nb3Sn dipole suitable for installation in the LHC to provide room for additional collimators. Two 1 m long collared coils previously tested at FNAL in single-aperture dipole configuration were assembled into the twin-aperture configuration and tested including magnet quench performance and field quality. [...]
FERMILAB-CONF-16-520-TD; NAPAC-2016-MOPOB41.- 2017 - 4 p. - Published in : 10.18429/JACoW-NAPAC2016-MOPOB41 Fulltext: PDF; External links: FERMILABCONF; JACoW

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2017-11-16
07:23
Upgraded polarized target for polarized Drell-Yan measurement at COMPASS / Pešek, Michael (Charles U. ; Turin U.) /COMPASS
The first ever polarized Drell-Yan measurement, presently being done by the COMPASS collaboration at CERN is described. Emphasis is put on the polarized target and its upgrade..
2016 - 4 p. - Published in : J. Phys. : Conf. Ser. 678 (2016) 012005 Fulltext: PDF;
In : 16th Workshop on High Energy Spin Physics, Dubna, Russia, 08 - 12 Sep 2015, pp.012005

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2017-11-15
13:07
A data bank on-line process control / Daneels, A
CERN-SI-Int-DL-72-3.
- 1972. - 23 p.
Full text

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2017-11-15
13:01
An interactive computer program for on-line experiments : he extended PARAM programs / Daneels, A
CERN-SI-Int-DL-72-1.
- 1972. - 9 p.
Full text

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2017-11-15
09:56
Beam test performance of the APV5 chip / de Fez-Laso, M D M (Imperial Coll., London) ; Bonaccorso, C (Imperial Coll., London) ; Gill, K (Imperial Coll., London) ; Hall, G (Imperial Coll., London) ; Iles, G (Imperial Coll., London) ; MacEvoy, B (Imperial Coll., London) ; Millmore, M (Imperial Coll., London) ; Potts, A (Imperial Coll., London) ; Raymond, M (Imperial Coll., London) ; French, M (Rutherford) et al.
The performance of the latest prototype of the radiation hard front end chip to be used by the CMS collaboration for analogue readout of the microstrip tracker has been evaluated with a silicon microstrip detector in a beam at CERN. The circuit, developed by the RD20 collaboration, consists of 128 channels of amplifier, pipeline memory, analogue signal processor and a serial multiplexer. [...]
CMS-TN-96-051; IC-HEP-96-2; IC-HEP-96-02.- 1996 - 22 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 382 (1996) 533-544

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2017-11-14
06:56
The ATLAS Intensity upgrade: Project overview and online operating experience / Pardo, Richard (Argonne) ; Barcikowski, Albert (Argonne) ; Conway, Zachary (Argonne) ; Dickerson, Clayton (Argonne) ; Hendricks, Matthew (Argonne) ; Kelly, Michael (Argonne) ; Kim, Sang-Hoon (Argonne) ; Luo, Yong (Argonne) ; MacDonald, Stephen (Argonne) ; Mustapha, Brahim (Argonne) et al.
ATLAS, the world's first accelerator to use RF superconductivity for ion acceleration, has undergone a major facility upgrade with the goals of significantly increased stable-beam current for experiments and improved transmission for all beams. The dominant components of the upgrade are a) new CW-RFQ to replace the first three low β resonators, b) a new cryostat of seven β=0.077 quarter-wave resonators demonstrating world-record accelerating fields, c) an improved cryogenics system, and d) the retirement of the original tandem injector. [...]
2016 - 3 p. - Published in : 10.18429/JACoW-HIAT2015-WEM1C03 Fulltext: PDF;
In : 13th International Conference on Heavy Ion Accelerator Technology, Yokohama, Japan, 07-11 Sep 2015, pp.WEM1C03

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2017-11-14
06:56
Status and operation of the ATLAS superconducting accelerator / Hendricks, Matthew (Argonne) ; Krupa, Anthony (Argonne) ; Pardo, Richard (Argonne)
ATLAS (the Argonne Tandem Linac Accelerator System) is a super conducting heavy ion accelerator which can accelerate nearly all stable, and some unstable, isotopes between protons and uranium with a charge to mass range of 1/1 to 1/7. The maximum energy ranges of these accelerated ions are 7-17 MeV per nucleon with intensities ranging from a few thousand ions/second to microampere currents. [...]
2016 - 3 p. - Published in : 10.18429/JACoW-HIAT2015-WEM1C01 Fulltext: PDF;
In : 13th International Conference on Heavy Ion Accelerator Technology, Yokohama, Japan, 07-11 Sep 2015, pp.WEM1C01

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2017-11-14
06:56
A fast, compact particle detector for tuning radioactive beams at ATLAS / Dickerson, Clayton (Argonne) ; Deibel, Catherine (LSU, Baton Rouge (main)) ; DiGiovine, Brad (Argonne) ; Hoffman, Calem (Argonne ; ANL, APS) ; Lai, Jianping (LSU, Baton Rouge (main)) ; Lin, Ling-Ying (Argonne) ; Pardo, Richard (Argonne) ; Rehm, Ernst (Argonne ; Argonne, PHY ; Harvard-Smithsonian Ctr. Astrophys. ; MIT) ; Santiago-Gonzalez, Daniel (LSU, Baton Rouge (main) ; Argonne (main) ; Louisiana State U.) ; Savard, Guy (Argonne ; Argonne, PHY ; Chicago U.)
Radioactive ion beams (RIB) at the Argonne Tandem Linear Accelerator System (ATLAS) are produced either from the in-flight method at 5-15 MeV/u for A < 30, or via reacceleration of fission fragments from the CAlifornium Rare Isotope Breeder Upgrade (CARIBU) at 4-10 MeV/u for 80 < A < 160. These RIB are typically accompanied by contaminant beams >100x more intense. [...]
2016 - 3 p. - Published in : 10.18429/JACoW-HIAT2015-MOPA29 Fulltext: PDF;
In : 13th International Conference on Heavy Ion Accelerator Technology, Yokohama, Japan, 07-11 Sep 2015, pp.MOPA29

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2017-11-08
06:21
Magnetic measurements and analysis of the first 11-T Nb$_3$ Sn 2-in-1 model for HL-LHC / Fiscarelli, Lucio (CERN) ; Izquierdo Bermudez, Susana (CERN) ; Dunkel, Olaf (CERN) ; Russenschuck, Stephan (CERN) ; Savary, Frederic (CERN) ; Willering, Gerard (CERN)
In the framework of the High-Luminosity upgrade of the Large Hadron Collider, the design and development of new magnets, relying on Nb3Sn superconducting cables, is progressing. In particular, a double-aperture dipole, with a bore diameter of 60 mm and a central field of 11 T, is required for the replacement of some Nb-Ti dipoles in the dispersion suppressor areas. [...]
2016 - 4 p. - Published in : IEEE Trans. Appl. Supercond. 27 (2016) 4002204
In : Applied Superconductivity Conference, Denver, CO, USA, 4 - 9 Sep 2016, pp.4002204

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