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2020-01-22
06:49
Experimental time resolution limits of modern SiPMs and TOF-PET detectors exploring different scintillators and Cherenkov emission / Gundacker, Stefan (Milan Bicocca U. ; CERN) ; Martinez Turtos, Rosana (CERN) ; Kratochwil, Nicolaus (CERN ; Vienna U.) ; Pots, Rosalinde Hendrika (CERN ; RWTH Aachen U.) ; Paganoni, Marco (Milan Bicocca U. ; CERN) ; Lecoq, Paul (CERN) ; Auffray, Etiennette (CERN)
Solid state photodetectors like silicon photomultipliers (SiPMs) are playing an important role in several fields of medical imaging, life sciences and high energy physics. They are able to sense optical photons with a single photon detection time precision below 100 ps, making them ideal candidates to read the photons generated by fast scintillators in time of flight positron emission tomography (TOF-PET). [...]
2020 - 20 p. - Published in : Phys. Med. Biol. 65 (2020) 025001

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2020-01-22
06:49
Production of intense mass separated $^{11}$ C beams for PET-aided hadron therapy / Stegemann, S (KU Leuven, FET) ; Cocolios, T E (Leuven U.) ; Dockx, K (Leuven U.) ; Leinders, G (SCK-CEN, Mol) ; Popescu, L (SCK-CEN, Mol) ; Ramos, J P (Leuven U. ; CERN) ; Rijpstra, K (SCK-CEN, Mol) ; Stora, T (CERN) ; Verwerft, M (SCK-CEN, Mol) ; Vleugels, J (Leuven U.)
A novel production system based on the Isotope Separation On-Line (ISOL) method is being developed to produce intense mass separated $^{11}$C beams for PET-aided hadron therapy. In this work, we present a systematic study of the target that was developed for optimized $^{11}$C beam production. [...]
2020 - 5 p. - Published in : Nucl. Instrum. Methods Phys. Res., B 463 (2020) 403-407
In : 18th International Conference on Electromagnetic Isotope Separators and Related Topics, Geneva, Switzerland, 16 - 21 Sep 2018, pp.403-407

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2020-01-22
06:49
Design and tests for the new CERN-ISOLDE spallation source: an integrated tungsten converter surrounded by an annular UC$_{\chi}$ target operated at 2000 °C / Ramos, J P (CERN) ; Ballan, M (INFN, Legnaro) ; Egoriti, L (TRIUMF ; British Columbia U.) ; Houngbo, D (SCK-CEN, Mol) ; Rothe, S (CERN) ; Augusto, R S (CERN ; Munich U.) ; Gottberg, A (TRIUMF) ; Dierckx, M (SCK-CEN, Mol) ; Popescu, L (SCK-CEN, Mol) ; Marzari, S (CERN) et al.
The production of high intensity and isobarically pure neutron-rich fission fragments is of high importance for the physics research program of the ISOLDE facility at CERN. This is typically done in a two-step method where a tungsten converter, positioned parallel and below the UC$_{\chi}$ target, is irradiated with 1.4 GeV protons. [...]
2020 - 7 p. - Published in : Nucl. Instrum. Methods Phys. Res., B 463 (2020) 357-363
In : 18th International Conference on Electromagnetic Isotope Separators and Related Topics, Geneva, Switzerland, 16 - 21 Sep 2018, pp.357-363

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2020-01-22
06:49
MELISSA: Laser ion source setup at CERN-MEDICIS facility. Blueprint / Gadelshin, V M (Mainz U. ; Urals State U.) ; Barozier, V (CERN) ; Cocolios, T E (Leuven U.) ; Fedosseev, V N (CERN) ; Formento-Cavaier, R (GIP ARRONAX) ; Haddad, F (GIP ARRONAX) ; Marsh, B (CERN) ; Marzari, S (CERN) ; Rothe, S (CERN) ; Stora, T (CERN) et al.
The Resonance Ionization Laser Ion Source (RILIS) has become an essential feature of many radioactive ion beamfacilities worldwide since it offers an unmatched combination of efficiency and selectivity in the production ofion beams of many different chemical elements. In 2019, the laser ion source setup MELISSA is going to beestablished at the CERN-MEDICIS facility, based on the experience of the workgroup LARISSA of the UniversityMainz and CERN ISOLDE RILIS team. [...]
2020 - 4 p. - Published in : Nucl. Instrum. Methods Phys. Res., B 463 (2020) 460-463
In : 18th International Conference on Electromagnetic Isotope Separators and Related Topics, Geneva, Switzerland, 16 - 21 Sep 2018, pp.460-463

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2020-01-22
06:49
Measurement of RF characteristics for Superconducting Quarter-wave Resonator / Lee, Jongchul (Sungkyunkwan U.) ; Kadi, Yacine (CERN) ; Zhang, Pei (CAS, Beijing) ; Ghergherehchi, Mitra (Sungkyunkwan U.) ; Chai, Jong-Seo (Sungkyunkwan U.)
RF characteristics of unloaded quality factor (Q$_{0}$) and accelerating electric field (E$_{acc}$) were measured for superconducting quarter-wave resonator (QWR) in order to verify the performance. For the accurate measurement of RF characteristics, the measurement method of Q$_{0}$ based RF power and RF coupling coefficient was used, and the measurement uncertainty was calculated with statistics analysis of systematic error in RF measurement system. [...]
2020 - 6 p. - Published in : J. Korean Phys. Soc. 76 (2020) 73-78

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2020-01-22
06:49
The CMS ECAL Phase-2 Upgrade for High Precision Timing and Energy Measurements / Arcidiacono, Roberta (INFN, Turin ; Piemonte Orientale U., Alessandria) /CMS
The electromagnetic calorimeter of the Compact Muon Solenoid Experiment (CMS) will be upgraded for the High-Luminosity phase of the LHC, where an unprecedented number of pile-up events (up to 200 simultaneous proton-proton collisions) and a challenging increase in data rate are expected. The current lead tungstate crystals and avalanche photodiode detectors will remain, while the upgrade will address the front-end and off-detector read-out electronics of the barrel region of the calorimeter. [...]
2019 - 2 p. - Published in : 10.1109/NSSMIC.2018.8824584
In : 2018 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC 2018), Sydney, Australia, 10 - 17 Nov 2018, pp.8824584

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2020-01-22
06:49
Bias Dependence of Total Ionizing Dose Effects on 28-nm Bulk MOSFETs / Zhang, Chun-Min (Ecole Polytechnique, Lausanne) ; Jazaeri, Farzan (Ecole Polytechnique, Lausanne) ; Borghello, Giulio (CERN ; U. Udine (main)) ; Mattiazzo, Serena (INFN, Padua ; U. Padua (main)) ; Baschirotto, Andrea (INFN, Milan Bicocca ; Milan Bicocca U.) ; Enz, Christian (Ecole Polytechnique, Lausanne) /ScalTech28project
This paper investigates the effects of total ionizing dose up to 1 Grad on 28-nm bulk MOSFETs under different bias conditions during irradiation. The aim is to assess the potential use of this commercial bulk CMOS technology in the future high-luminosity Large Hadron Collider at CERN that will require highly improved radiation-tolerant tracking systems..
2019 - 3 p. - Published in : 10.1109/NSSMIC.2018.8824379
In : 2018 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC 2018), Sydney, Australia, 10 - 17 Nov 2018, pp.8824379

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2020-01-22
06:49
Development of the ATLAS Liquid Argon Calorimeter Readout Electronics for the HL-LHC / Xu, H (BNL, NSLS) /ATLAS Liquid Argon Calorimeter Group
The ATLAS Liquid Argon Calorimeter electronics will be upgraded to process the 182,468 calorimeter cells with 16-bit dynamic range at 40 MHz in the high pileup conditions of the high-luminosity LHC. Electronics components with Low-noise, low-power, radiation-tolerant and high-bandwidth capabilities are being developed in 65 nm and 130 nm CMOS technologies for the font end electronics. [...]
2019 - 3 p. - Published in : 10.1109/NSSMIC.2018.8824693
In : 2018 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC 2018), Sydney, Australia, 10 - 17 Nov 2018, pp.8824693

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2020-01-21
06:00
Design, construction, and beam tests of a rotatable collimator prototype for high-intensity and high-energy hadron accelerators / Markiewicz, T (SLAC) ; Bong, E (SLAC) ; Keller, L (SLAC) ; Smith, J (SLAC) ; Aberle, O (CERN) ; Accettura, C (CERN) ; Bertarelli, A (CERN) ; Berthome, E (CERN) ; Biancacci, N (CERN) ; Butcher, M (CERN) et al.
A rotatable-jaw collimator design was conceived as a solution to recover from catastrophic beam impacts which would damage a collimator at the Large Hadron Collider (LHC) or its High-Luminosity upgrade (HL-LHC). One such rotatable collimator prototype was designed and built at SLAC and delivered to CERN for tests with LHC-type circulating beams in the Super Proton Synchrotron (SPS). [...]
2019 - 15 p. - Published in : Phys. Rev. Accel. Beams 22 (2019) 123002

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2020-01-21
06:00
First steps in the development of the Multi Ion Reflection Apparatus for Collinear Laser Spectroscopy / Sels, S (CERN) ; Fischer, P (Greifswald U.) ; Heylen, H (CERN) ; Lagaki, V (CERN ; Greifswald U.) ; Lechner, S (CERN ; Vienna U.) ; Maier, F M (CERN ; Linz U.) ; Plattner, P (CERN ; Innsbruck U.) ; Rosenbusch, M (Greifswald U.) ; Wienholtz, F (CERN ; Greifswald U.) ; Wolf, R N (Greifswald U.) et al.
Collinear laser spectroscopy (CLS) has been combined with the multi-reflection time-of-flight (MR-ToF) technique. To this end, a photodetection system has been implemented at the drift region of a MR-ToF apparatus and a laser beam has been sent along the path of the ions that are stored between the two ion-optical mirrors. [...]
2020 - 5 p. - Published in : Nucl. Instrum. Methods Phys. Res., B 463 (2020) 310-314
In : 18th International Conference on Electromagnetic Isotope Separators and Related Topics, Geneva, Switzerland, 16 - 21 Sep 2018, pp.310-314

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