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2018-12-12
09:40
Commissioning of the Operational Laser Emittance Monitors for LINAC4 at CERN / Hofmann, Thomas (Royal Holloway, U. of London) ; Boorman, Gary (Royal Holloway, U. of London) ; Bosco, Alessio (Royal Holloway, U. of London) ; Gibson, Stephen (Royal Holloway, U. of London) ; Roncarolo, Federico (CERN)
A laser-based emittance monitor has been developed to non-invasively measure the transverse emittance of the LINAC4 H⁻ beam at its top energy of 160MeV. After testing several sub-systems of the instrument during linac commissioning at intermediate energies, two instruments are now permanently installed. [...]
2018 - 4 p. - Published in : 10.18429/JACoW-IPAC2018-WEPAL074 Fulltext: PDF;
In : 9th International Particle Accelerator Conference, Vancouver, Canada, 29 Apr - 4 May 2018, pp.WEPAL074

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2018-12-12
09:40
Enhanced Bunch Monitoring by Interferometric Electro-Optic Methods / Gibson, Stephen (Royal Holloway, U. of London ; JAI, UK) ; Arteche, Alberto (Royal Holloway, U. of London) ; Bashforth, Sophie (JAI, UK) ; Bosco, Alessio (Royal Holloway, U. of London ; JAI, UK) ; Krupa, Michal (CERN) ; Lefèvre, Thibaut (CERN)
A prototype Electro-Optic Beam Position Monitor has been installed for tests* in the CERN SPS to develop the concept for high-bandwidth (6-12GHz) monitoring of crabbed-bunch rotation and intra-bunch instabilities at the High Luminosity LHC**. The technique relies on the ultrafast response of birefringent MgO:LiNO3 crystals to optically measure the intra-bunch transverse displacement of a passing relativistic bunch. [...]
2018 - 4 p. - Published in : 10.18429/JACoW-IPAC2018-WEPAL073 Fulltext: PDF;
In : 9th International Particle Accelerator Conference, Vancouver, Canada, 29 Apr - 4 May 2018, pp.WEPAL073

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2018-12-12
09:39
The AWAKE Electron Spectrometer / Keeble, Fearghus (University Coll. London) ; Cascella, Michele (University Coll. London) ; Chappell, James (University Coll. London) ; Deacon, Lawrence (University Coll. London) ; Gorgisyan, Ishkhan (CERN) ; Jolly, Simon (University Coll. London) ; Mazzoni, Stefano (CERN) ; Penna, Paolo (European Southern Observ.) ; Quattri, Marco (European Southern Observ.) ; Wing, Matthew (University Coll. London)
The AWAKE experiment at CERN aims to use a proton driven plasma wakefield to accelerate electrons from 10–20 MeV up to GeV energies in a 10 m plasma cell. We present the design of the magnetic spectrometer which will measure the electron energy distribution. [...]
2018 - 4 p. - Published in : 10.18429/JACoW-IPAC2018-THPML118 Fulltext: PDF;
In : 9th International Particle Accelerator Conference, Vancouver, Canada, 29 Apr - 4 May 2018, pp.THPML118

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2018-12-09
04:45
Measurement of Diffractive and Exclusive processes / Chudasama, Ruchi /CMS Collaboration
With excellent performance the Compact Muon Solenoid (CMS) experiment has made a number of key observations in the diffractive and exclusive processes and hence in probing the Standard model in a unique way. This presentation will cover recent results on the measurement of diffractive and exclusive processes using data recorded by CMS detector at the LHC..
arXiv:1812.01873; CMS CR-2018/374.- 2018-12-05 - 4 p. - Published in : PoS: ICHEP2018 (2018) , pp. 044 Fulltext: PDF;
In : XXXIX International Conference on High Energy Physics, Seoul, Kor, 4 - 11 Jul 2018, pp.044

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2018-12-09
04:45
Implications of the $\rho(s)$ measurements by TOTEM at the LHCImplications of the $\rho(s)$ measurements by TOTEM at the LHC / Troshin, S.M. (Serpukhov, IHEP) ; Tyurin, N.E. (Serpukhov, IHEP)
Implications of the recent measurements of the parameter $\rho(s)$ (ratio of the real to imaginary parts of the forward scattering elastic amplitude) by TOTEM collaboration at $\sqrt{s}=13$ $TeV$ are discussed with emphasis on the rising energy dependence of the ratio of elastic to total cross--sections..
arXiv:1805.05161.- 2018-10-24 - 5 p. - Published in : Mod. Phys. Lett. A 33 (2018) 1850206 Fulltext: PDF;

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2018-12-08
06:01
TORCH: A Large-Area Detector for High Resolution Time-of-flight / Forty, R (CERN) ; Brook, N (Bath U.) ; Castillo García, L (Oxford U.) ; Cussans, D (Bristol U.) ; Föhl, K (CERN) ; Frei, C (CERN) ; Gao, R (Oxford U.) ; Gys, T (CERN) ; Harnew, N (Oxford U.) ; Piedigrossi, D (CERN) et al.
TORCH is a novel detector concept for high resolution time-of-flight measurement over large areas, which has been developed for application in a future upgrade of the LHCb experiment. The status of the R&D; project is presented, including the development of suitable fast photon detectors, and test-beam studies of prototypes..
2018 - 6 p. - Published in : Springer Proc. Phys. 212 (2018) 257-262
In : International Conference on Technology and Instrumentation in Particle Physics 2017, Beijing, China, 21 - 26 May 2017, pp.257-262

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2018-12-08
06:01
Scattering Studies with the DATURA Beam Telescope / Jansen, Hendrik (DESY) ; Dreyling-Eschweiler, Jan (DESY) ; Schütze, Paul (DESY) ; Spannagel, Simon (CERN)
High-precision particle tracking devices allow for two-dimensional analyses of the material budget distribution of particle detectors and their periphery. In this contribution, the material budget of different targets is reconstructed from the width of the angular distribution of scattered beam particle at a sample under test. [...]
2018 - 8 p. - Published in : Springer Proc. Phys. 212 (2018) 243-250
In : International Conference on Technology and Instrumentation in Particle Physics 2017, Beijing, China, 21 - 26 May 2017, pp.243-250

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2018-12-08
06:01
Development of the AWAKE Stripline BPM Electronics / Liu, Shengli (TRIUMF) ; Verzilov, Victor (TRIUMF) ; Farabolini, Wilfrid (CERN) ; Doebert, Steffen (CERN) ; Schmidt, Janet S (CERN)
The stripline BPMs of AWAKE (The Advanced Proton Driven Plasma Wakefield Acceleration Experiment at CERN) are required to measure the position of the single electron bunch with a resolution of 10 um rms, for the bunch charge of 100 pC to 1 nC. This paper presents a AFE-Digital processing system developed at TRIUMF (Canada) which achieved such performance. [...]
2018 - 6 p. - Published in : Springer Proc. Phys. 212 (2018) 237-242
In : International Conference on Technology and Instrumentation in Particle Physics 2017, Beijing, China, 21 - 26 May 2017, pp.237-242

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2018-12-08
06:01
High-Speed/Radiation-Hard Optical Engine for HL-LHC / Gan, K K (Ohio State U.) ; Buchholz, P (Siegen U.) ; Heidbrink, S (Siegen U.) ; Kagan, H P (Ohio State U.) ; Kass, R D (Ohio State U.) ; Moore, J (Ohio State U.) ; Smith, D S (Ohio State U.) ; Vogt, M (Siegen U.) ; Ziolkowski, M (Siegen U.)
We have designed and fabricated a compact array-based optical engine for transmitting data at 10 Gb/s. The device consists of a 4-channel ASIC driving a VCSEL (Vertical Cavity Surface Emitting Laser) array in an optical package. [...]
2018 - 6 p. - Published in : Springer Proc. Phys. 212 (2018) 180-185
In : International Conference on Technology and Instrumentation in Particle Physics 2017, Beijing, China, 21 - 26 May 2017, pp.180-185

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2018-12-08
06:01
First Prototype of the Muon Frontend Control Electronics for the LHCb Upgrade: Hardware Realization and Test / Fresch, Paolo (INFN, Rome) ; Chiodi, Giacomo (INFN, Rome) ; Iacoangeli, Francesco (INFN, Rome) ; Bocci, Valerio (INFN, Rome)
The muon detector plays a key role in the trigger of the LHCb experiment at CERN. The upgrade of its electronics is required in order to be compliant with the new 40 MHz readout system, designed to cope with future LHC runs between five and ten times the initial design luminosity. [...]
2018 - 7 p. - Published in : Springer Proc. Phys. 212 (2018) 173-179
In : International Conference on Technology and Instrumentation in Particle Physics 2017, Beijing, China, 21 - 26 May 2017, pp.173-179

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