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2019-06-25
06:43
Development of monolithic sensors for high energy physics in commercial CMOS technologies / Snoeys, W (CERN)
Hybrid pixel detectors with readout and sensor in different silicon chips are in overwhelming majority in today’s high energy physics experiments, but monolithic active pixel sensors (MAPS) have received significant attention because they offer easier detector assembly, lower cost, and other advantages like lower material and higher granularity. MAPS now move towards commercial CMOS technologies, which offer significant radiation tolerance and substrates compatible with particle detection and combine circuit performance and density with volume production capability at reasonable cost. [...]
2019 - 10 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 938 (2019) 41-50

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2019-06-25
06:43
A quasi-static model for hot-electron interaction with self-generated magnetic fields / Curcio, A (CERN) ; Volpe, L (Salamanca U.)
The time evolution of the target temperature and ionization degree during the laser-target interaction is of primary importance to understanding the transition between solid and plasma. When the interaction lasts a few tens of femtoseconds, the target resistivity is not well known as in the Spitzer regime, and therefore approximated information must be used from experiments and/or from models. [...]
2019 - Published in : Plasma Phys. Control. Fusion 61 (2019) 055013

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2019-06-25
06:43
Measurement of the $^{244}Cm$ and $^{246}Cm$ neutron-induced capture cross sections at the n_TOF facility / Alcayne, V (Madrid, CIEMAT) ; Kimura, A (JAERI, Tokai) ; Mendoza, E (Madrid, CIEMAT) ; Cano-Ott, D (Madrid, CIEMAT) ; Martínez, T (Madrid, CIEMAT) ; Aberle, O (CERN) ; Andrzejewski, J (Lodz U.) ; Audouin, L (Orsay, IPN) ; Bécares, V (Madrid, CIEMAT) ; Bacak, M (CERN ; IRFU, Saclay ; Vienna, Tech. U.) et al.
The neutron capture reactions of the $^{244}$Cm and $^{246}$Cm isotopes open the path for the formation of heavier Cm isotopes and heavier elements such as Bk and Cf in a nuclear reactor. In addition, both isotopes belong to the minor actinides with a large contribution to the decay heat and to the neutron emission in irradiated fuels. [...]
2019 - 8 p. - Published in : EPJ Web Conf. 211 (2019) 03008 Fulltext: PDF;
In : 5th International Workshop On Nuclear Data Evaluation for Reactor Applications, Aix-en-Provence, France, 8 - 12 Oct 2018, pp.03008

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2019-06-25
06:43
Design considerations for electric motors using stacks of high temperature superconducting tape as permanent magnets / Climente-Alarcon, V (Cambridge U.) ; Patel, A (Cambridge U.) ; Baskys, A (Cambridge U. ; CERN) ; Glowacki, B A (Cambridge U.)
High temperature superconducting (HTS) tape can be cut and stacked to form composite bulks capable of generating fields as high as 17.7 T, the highest of any trapped field magnet. This makes them the most powerful permanent magnets accounting for the need to maintain a cryogenic temperature. [...]
2019 - 6 p. - Published in : IOP Conf. Ser. Mater. Sci. Eng. 502 (2019) 012182 Fulltext: PDF;
In : 27th International Cryogenic Engineering Conference - International Cryogenic Materials Conference 2018, Oxford, United Kingdom, 3 - 7 Sep 2018, pp.012182

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2019-06-25
06:43
Irradiation imposed degradation of the mechanical and electrical properties of electrical insulation for future accelerator magnets / Polinski, J (Wroclaw Tech. U.) ; Chorowski, M (Wroclaw Tech. U.) ; Bogdan, P (Wroclaw Tech. U.) ; Strychalski, M (Wroclaw Tech. U.) ; de Rijk, G (CERN)
Future accelerators will make extensive use of superconductors made of Nb3Sn, which allows higher magnetic fields than NbTi. However, the wind-and-react technology of Nb3Sn superconducting magnet production makes polyimide Kapton® non applicable for the coils' electrical insulation. [...]
2015 - 9 p. - Published in : AIP Conf. Proc. 1574 (2015) 170
In : Cryogenic Engineering Conference & International Cryogenic Materials Conference, Anchorage, Alaska, USA, 17 - 21 Jun 2013, pp.170

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2019-06-25
06:43
Advancements and plans for the LHC upgrade detector thermal management with CO2 evaporative cooling / Tropea, P (CERN) ; Daguin, J (CERN) ; Giakoumi, D (CERN) ; Koss, N (CERN) ; Petagna, P (CERN) ; Postema, H (CERN) ; Schmid, D (CERN) ; Verlaat, B (CERN) ; Zwalinski, L (CERN)
Following its pioneering application in the present LHCb Velo detector, CO$_{2}$ evaporative cooling has become the consolidated technology for the thermal management of low-temperature operated silicon detectors at LHC. ATLAS Insertable B-Layer and CMS Phase I Pixel are successfully operating with such cooling system since a few years and LHCb has selected the same technology for the new Upstream Tracker and the upgraded Velo, both to be installed during LS2. [...]
2018 - 2 p. - Published in : Nucl. Instrum. Methods Phys. Res., 936 (2019) 644-645
In : Frontier Detectors for Frontier Physics XIV Pisa Meeting on Advanced Detectors, La Biodola, Isola D'elba, Italy, 27 May - 2 Jun 2018, pp.644-645

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2019-06-25
06:43
Study of Thin Double-Gap RPCs for the CMS Muon System / Lee, K S (Korea U.) ; Cho, S W (Korea U.) ; Choi, S (Korea U.) ; Hong, B (Korea U.) ; Kang, M (Korea U.) ; Lim, J H (Korea U.) ; Jo, Y M (Korea U.) ; Park, S K (Korea U.) ; Ryoo, K R (Korea U.) ; Aly, R (Cairo, Acad. Sci. Res. Tech.) et al.
High-sensitivity double-gap phenolic resistive plate chambers (RPCs) are studied for the Phase-2 upgrade of the Compact Muon Solenoid (CMS) muon system at high pseudorapidity η. Whereas the present CMS RPCs have a gas gap thickness of 2 mm, we propose to use thinner gas gaps, which will improve the performance of these RPCs. [...]
2018 - 8 p. - Published in : J. Korean Phys. Soc. 73 (2018) 1080-1087

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2019-06-25
06:43
Nano-sized Scandia doped dispenser cathode with annular shape for the hollow electron lenses for CERN high luminosity LHC project / Yang, Yunfei (Beijing U. of Tech.) ; Wang, Yiman (Beijing U. of Tech.) ; Liu, Wei (Beijing U. of Tech.) ; Pan, Zhaoliu (Beijing U. of Tech.) ; Li, Junhui (Beijing U. of Tech.) ; Wang, Jinshu (Beijing U. of Tech.) ; Perini, Diego (CERN)
The Large Hadron Collider (LHC) is the world largest and most powerful accelerator for high energy physics. The High Luminosity LHC project (HL- LHC) foresees the construction and installation of important upgrades to increase the efficiency of the LHC machine. [...]
2018 - 2 p. - Published in : 10.1109/IVEC.2018.8391505
In : 19th IEEE International Vacuum Electronics Conference, Monterey, CA, USA, 24 - 26 Apr 2018, pp.319-320

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2019-06-25
06:43
CompactLight Design Study / Latina, Andrea (CERN) ; Aicheler, Markus (Helsinki Inst. of Phys.) ; Aksoy, Avni (Ankara U.) ; Bernhard, Axel (KIT, Karlsruhe) ; Clarke, James (Daresbury) ; Cross, Adrian (Glasgow U.) ; D'Auria, Gerardo (Sincrotrone Trieste) ; Dowd, Rohan (Australia, CSIRO, Clayton) ; Esperante Pereira, Daniel (Valencia U., IFIC) ; Fang, Wencheng (SINAP, Shanghai) et al.
H2020 CompactLight Project aims at designing the next generation of compact hard X-Rays Free-Electron Lasers, relying on very high accelerating gradients and on novel undulator concepts. CompactLight intends to design a compact Hard X-ray FEL facility based on very high-gradient acceleration in the X band of frequencies, on a very bright photo injector, and on short-period/superconductive undulators to enable smaller electron beam energy. [...]
2018 - 4 p. - Published in : 10.18429/JACoW-FLS2018-WEP1WC02 Fulltext: PDF;
In : 60th ICFA Advanced Beam Dynamics Workshop on Future Light Sources, Shanghai, China, 5 - 9 Mar 2018, pp.85-88

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2019-06-25
06:43
Recent Developments from ASACUSA on Antihydrogen Detection / Kolbinger, B (Stefan Meyer Inst. Subatomare Phys.) ; Amsler, C (Stefan Meyer Inst. Subatomare Phys.) ; Breuker, H (Nishina Ctr., RIKEN) ; Diermaier, M (Stefan Meyer Inst. Subatomare Phys.) ; Dupré, P (Nishina Ctr., RIKEN) ; Fleck, M (Stefan Meyer Inst. Subatomare Phys.) ; Gligorova, A (Stefan Meyer Inst. Subatomare Phys.) ; Higaki, H (Hiroshima U.) ; Kanai, Y (Nishina Ctr., RIKEN) ; Kobayashi, T (Tokyo U.) et al. /Asacusa
The ASACUSA Collaboration at CERNs Antiproton Decelerator aims to measure the ground state hyperfine splitting of antihydrogen with high precision to test the fundamental symmetry of CPT (combination of charge conjugation, parity transformation, and time reversal). For this purpose an antihydrogen detector has been developed. [...]
2018 - 6 p. - Published in : EPJ Web Conf. 181 (2018) 01003 Fulltext: PDF;
In : International Conference on Exotic Atoms and Related Topics, Vienna, Austria, 11 - 15 Sep 2017, pp.01003

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