2020-04-01
07:09 |
Observation of strong reduction of multiple scattering for channeled particles in bent crystals
/ Scandale, W (CERN) ; Arduini, G (CERN) ; Cerutti, F (CERN) ; Garattini, M ; Gilardoni, S (CERN) ; Losito, R (CERN) ; Masi, A (CERN) ; Mirarchi, D (CERN) ; Montesano, S (CERN) ; Redaelli, S (CERN) et al.
Strong reduction of multiple scattering for channeled particles has been observed in an experiment on the deflection of a 180 GeV/c π+ -meson beam by bent silicon crystals. The RMS deflections due to multiple scattering for the channeled particles were about six times smaller than for non-channeled ones. [...]
2020 - 4 p.
- Published in : Phys. Lett. B 804 (2020) 135396
Article from SCOAP3: PDF; Fulltext from publisher: PDF;
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2020-04-01
07:09 |
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2020-04-01
07:09 |
Preliminary Conceptual design of FCC-hh cryoplants: Linde evaluation
/ Millet, Francois (CEA INAC, Grenoble) ; Tavian, L (CERN) ; Cardella, U (Linde Kryotechnik, Pfungen) ; Amstutz, O (Linde Kryotechnik, Pfungen) ; Selva, P (Linde Kryotechnik, Pfungen) ; Kuendig, A (Unlisted, CH)
In the framework of an international collaboration, a 100 TeV hadron collider in a 100-km long tunnel is under study as a future circular collider beyond LHC at CERN. Its design is based on 16-T superconducting magnets cooled at 1.9 K by 10 cryoplants with a unit equivalent capacity of 100 kW at 4.5 K, up to 4 times larger than the present state-of-the-art. [...]
IOP, 2019 - 6 p.
- Published in : IOP Conf. Ser. Mater. Sci. Eng. 502 (2019) 012131
Fulltext: 10.1088_1757-899X_502_1_012131 - PDF; 33d33665c82fa0dd2f9112ba705c8488 - PDF;
In : 27th International Cryogenic Engineering Conference - International Cryogenic Materials Conference 2018, Oxford, United Kingdom, 3 - 7 Sep 2018, pp.012131
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2020-04-01
07:09 |
First operational experience of the upgraded cryogenic infrastructure of the vertical magnet test facility in the SM18 hall, including HFM and cluster D test stations.
/ Benda, V (CERN) ; Lees, A (CERN) ; Pirotte, O (CERN) ; Craen, A Vande (CERN) ; Pezzetti, M (CERN) ; Lamboy, J P (CERN) ; Lefebvre, V (CERN) ; Bajko, M (CERN) ; Giloux, C (CERN)
As part of the R&D; program for HL-LHC, the future upgrade of the Large Hadron Collider (LHC), the vertical magnet test facility in the SM18 cryogenic test hall at CERN has seen significant development. Since the installation of HFM and Cluster D cryogenic test stations in 2017, the facility is comprised of five vertical test cryostats of various sizes operating at either 1.9 K or 4.2 K. [...]
IOP, 2019 - 6 p.
- Published in : IOP Conf. Ser. Mater. Sci. Eng. 502 (2019) 012126
Fulltext: ed5b7a2236d08af6573d0255c0581521 - PDF; 10.1088_1757-899X_502_1_012126 - PDF;
In : 27th International Cryogenic Engineering Conference - International Cryogenic Materials Conference 2018, Oxford, United Kingdom, 3 - 7 Sep 2018, pp.012126
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2020-04-01
07:09 |
Heat load profile estimates on LHC beam screens by thermal transient analysis
/ Bradu, B (CERN) ; Brodzinski, K (CERN) ; Delikaris, D (CERN) ; Garion, C (CERN) ; Tavian, L (CERN)
The LHC beams are producing significant dynamic heat loads on the LHC cryogenic system. These heat loads are deposited on beam screens, where they must be properly extracted with dedicated cooling loops between 4.6 K and 20 K. [...]
IOP, 2019 - 7 p.
- Published in : IOP Conf. Ser. Mater. Sci. Eng. 502 (2019) 012116
Fulltext: 10.1088_1757-899X_502_1_012116 - PDF; 814d76eab0f03690fb69b26083cea08d - PDF;
In : 27th International Cryogenic Engineering Conference - International Cryogenic Materials Conference 2018, Oxford, United Kingdom, 3 - 7 Sep 2018, pp.012116
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2020-04-01
07:09 |
Superfluid Helium cooling and compact Heat Exchanger for HL-LHC D2 Recombination Dipoles
/ Rousset, B (CEA INAC, Grenoble) ; Bancel, F (CEA INAC, Grenoble) ; Claudet, S (CERN) ; Millet, F (CEA INAC, Grenoble) ; Nivelon, P (CEA INAC, Grenoble) ; Perin, A (CERN) ; Weelderen, R Van (CERN)
New D2 recombination dipoles with a larger aperture than in the LHC dipoles are required for the future High Luminosity LHC at CERN. These 13.5 m-long D2 magnets are proposed to be conduction cooled in a static bath of pressurized He II. [...]
IOP, 2019 - 6 p.
- Published in : IOP Conf. Ser. Mater. Sci. Eng. 502 (2019) 012114
Fulltext: 10.1088_1757-899X_502_1_012114 - PDF; 50733fe3ca2c707eda3a46d389aa36c1 - PDF;
In : 27th International Cryogenic Engineering Conference - International Cryogenic Materials Conference 2018, Oxford, United Kingdom, 3 - 7 Sep 2018, pp.012114
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2020-04-01
07:09 |
Study on heat transfer between the High-Luminosity LHC beam screens and the He II-cooled beam tube
/ Borges de Sousa, P (CERN) ; Morrone, M (CERN) ; Garion, C (CERN) ; Van Weelderen, R (CERN) ; Koettig, T (CERN) ; Bremer, J (CERN)
The new beam screens for the inner triplets in the HL-LHC are designed to intercept heat loads of up to 25 Wm$^{-1}$ between 60 K and 80 K. The screens need to be mechanically supported by the beam tube at 1.9 K while limiting heat transfer to the same tube to less than 0.5 W m$^{-1}$. [...]
IOP, 2019 - 6 p.
- Published in : IOP Conf. Ser. Mater. Sci. Eng. 502 (2019) 012088
Fulltext: 10.1088_1757-899X_502_1_012088 - PDF; 6097c4a2b24a46df2bf326b72817c197 - PDF;
In : 27th International Cryogenic Engineering Conference - International Cryogenic Materials Conference 2018, Oxford, United Kingdom, 3 - 7 Sep 2018, pp.012088
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2020-04-01
07:09 |
Design of an ultra-thin, radiation thickness minimized, metallic cryostat for a 2T/4m free bore detector solenoid
/ Silva, H F P (CERN) ; Ilardi, V (CERN ; Twente U., Enschede) ; Kulenkampff, T (CERN ; Vienna U.) ; Dudarev, A (CERN) ; ten Kate, H H J (CERN)
A 2T, 6m long, 4m free bore superconducting solenoid is being designed for the so- called IDEA detector for probing electron-positron collisions at the proposed Future Circular Collider at CERN. In order to drive the cost of the magnet down, the solenoid is positioned around the inner tracking detector for which presence of the magnetic field is mandatory. [...]
IOP, 2019 - 6 p.
- Published in : IOP Conf. Ser. Mater. Sci. Eng. 502 (2019) 012084
Fulltext: 4c19c141ebab77b79860629276ebca0f - PDF; 10.1088_1757-899X_502_1_012084 - PDF;
In : 27th International Cryogenic Engineering Conference - International Cryogenic Materials Conference 2018, Oxford, United Kingdom, 3 - 7 Sep 2018, pp.012084
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2020-04-01
07:09 |
Development of light and highly radiation transparent cryostats for FCC detector magnets: first analyses of insulation materials
/ Ilardi, V (CERN ; Twente U., Enschede) ; Silva, H (CERN) ; Dudarev, A (CERN) ; Koettig, T (CERN) ; Borges de Sousa, P (CERN) ; Busch, L N (CERN) ; Kulenkampff, T (CERN ; Vienna U.) ; Bielert, E R (CERN) ; ten Kate, H H J (CERN)
For both versions of the Future Circular Collider, the electron-positron FCC ee$^+$, requiring a 2 T/4 m bore solenoid for particles spectrometry, and the hadron-hadron FCC hh, CERN is developing an innovative design for the detector solenoids, to enable their positioning inside the calorimeters directly surrounding the inner tracker. For this to happen, the cryostat design has to be optimized to achieve minimum radiation length. [...]
IOP, 2019 - 6 p.
- Published in : IOP Conf. Ser. Mater. Sci. Eng. 502 (2019) 012083
Fulltext: 10.1088_1757-899X_502_1_012083 - PDF; 94bf23883be6ccb63d776418d24b9720 - PDF;
In : 27th International Cryogenic Engineering Conference - International Cryogenic Materials Conference 2018, Oxford, United Kingdom, 3 - 7 Sep 2018, pp.012083
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2020-04-01
07:09 |
Thermal performance of the new superfluid helium vertical test cryostats for magnet tests at CERN
/ Vande Craen, Arnaud (CERN) ; Bajko, M (CERN) ; Benda, V (CERN) ; Deschamps, J-B (CERN) ; Giloux, C (CERN) ; Lees, A (CERN) ; Parma, V (CERN) ; Pasdeloup, F (CERN) ; Pirotte, O (CERN)
In the frame of the R&D; program of the HL-LHC, the upgrade of the Large Hadron Collider (LHC), CERN augmented its test facility with two new large-scale vertical test stations for superconducting magnet testing. The cryostats composing the core of these test stations share design features but are of different dimensions: one allows testing magnets up to 1.5 m diameter, 2.5 m long for a maximum weight of 15 t, while the other can accommodate magnets up to 0.9 m diameter, and 5.5 m long for a maximum weight of 18 t. [...]
IOP, 2019 - 6 p.
- Published in : IOP Conf. Ser. Mater. Sci. Eng. 502 (2019) 012081
Fulltext: 10.1088_1757-899X_502_1_012081 - PDF; f917e431eab3d9d1d7a803d2f42f1dfb - PDF;
In : 27th International Cryogenic Engineering Conference - International Cryogenic Materials Conference 2018, Oxford, United Kingdom, 3 - 7 Sep 2018, pp.012081
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