1.
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Crystal Collimation Studies at the Tevatron (T-980)
/ Mokhov, N V (Fermilab) ; Annala, G E (Fermilab) ; Apyan, A (Fermilab) ; Carrigan, R A (Fermilab) ; Drozhdin, A I (Fermilab) ; Johnson, T R (Fermilab) ; Legan, A M (Fermilab) ; Reilly, R E (Fermilab) ; Shiltsev, V (Fermilab) ; Still, D A (Fermilab) et al.
Bent-crystal channeling is a technique with a potential to increase the beam-halo collimation efficiency at high-energy colliders. First measurements at the Tevatron in 2005 have shown that using a 5-mm silicon crystal to deflect the proton beam halo onto a secondary collimator improves the system performance by reducing the machine impedance, beam losses in the collider detectors and irradiation of the superconducting magnets, all in agreement with simulations. [...]
FERMILAB-CONF-09-173-APC.-
2010
Published version from PAC09: PDF;
In : Particle Accelerator Conference 2009, Vancouver, Canada, 04 - 08 May 2009, pp.WE1GRC05
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2.
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Beam Losses and Background Loads on Collider Detectors Due to Beam-Gas Interactions in the LHC
/ Drozhdin, A I (Fermilab) ; Mokhov, N V (Fermilab) ; Striganov, S I (Fermilab)
With a fully-operational high-efficient collimation system in the LHC, nuclear interactions of circulating protons with residual gas in the machine beam pipe can be a major sources of beam losses in the vicinity of the collider detectors, responsible for the machine-induced backgrounds. Realistic modeling of elastic and inelastic interactions of 7-TeV protons with nuclei in the vacuum chamber of the cold and warm sections of the LHC ring - with an appropriate pressure profile - is performed with the STRUCT and MARS15 codes. [...]
FERMILAB-CONF-09-172-APC.-
2010
Published version from PAC09: PDF;
In : Particle Accelerator Conference 2009, Vancouver, Canada, 04 - 08 May 2009, pp.WE6PFP027
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3.
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Electron Lens for Beam-Beam Compensation at LHC
/ Valishev, A (Fermilab) ; Shiltsev, V (Fermilab)
Head-on beam-beam effect may become a major performance limitation for the LHC in one of the upgrade scenarios. Given the vast experience gained from the operation of Tevatron electron lenses, a similar device provides significant potential for mitigation of beam-beam effects at the LHC. [...]
FERMILAB-CONF-09-171-AD-APC.-
2010
Published version from PAC09: PDF;
In : Particle Accelerator Conference 2009, Vancouver, Canada, 04 - 08 May 2009, pp.WE6PFP034
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4.
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Embedded Collimator Beam Position Monitors
/ Bertarelli, A (CERN) ; Boccard, C (CERN) ; Dallocchio, A (CERN) ; Gasior, M (CERN) ; Gentini, L (CERN) ; Nosych, A (CERN)
The LHC collimation system is crucial for safe and reliable operation of proton beams with 350 MJ stored energy. Currently the collimator set-up is performed by observing beam losses when approaching the collimator jaws to the beam. [...]
CERN-BE-2011-023.-
Geneva : CERN, 2011 - 3 p.
- Published in : Conf. Proc.: C11-05-16.4 (2011) , pp. MOPD18
Fulltext: PDF; Published version from JACoW: PDF;
In : 10th European Workshop on Beam Diagnostics and Instrumentation for Particle Accelerators, Hamburg, Germany, 16 - 18 May 2011, pp.80
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5.
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6.
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Coherent Diffraction Radiation as a Tool for Longitudinal Beam Profile Diagnostics at CTF3
/ Lekomtsev, K (Oxford U., JAI) ; Blair, G A (Oxford U., JAI) ; Boorman, G E (Oxford U., JAI) ; Karataev, V (Oxford U., JAI) ; Micheler, M (Oxford U., JAI) ; Corsini, R (CERN) ; Lefèvre, T (CERN)
Compact Linear Collider (CLIC) is a multi-TeV electron-positron collider for particle physics based on an innovative two-beam acceleration scheme. The CLIC Test Facility 3 (CTF3, CERN) aims to demonstrate feasibility of this concept. [...]
2010
Published version from LINAC10: PDF;
In : 25th Linear Accelerator Conference, Tsukuba, Japan, 12 - 17 Sep 2010, pp.TUP099
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8.
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9.
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EMMA Commissioning
/ Muratori, B D (Cockcroft Inst. Accel. Sci. Tech. ; Daresbury) ; Jones, J K (Cockcroft Inst. Accel. Sci. Tech. ; Daresbury) ; Saveliev, Y M (Cockcroft Inst. Accel. Sci. Tech. ; Daresbury) ; Smith, S L (Cockcroft Inst. Accel. Sci. Tech. ; Daresbury) ; Tzenov, S I (Cockcroft Inst. Accel. Sci. Tech. ; Daresbury) ; Holder, D J (Cockcroft Inst. Accel. Sci. Tech. ; Liverpool U.) ; Berg, J S (Brookhaven) ; Keil, E (CERN) ; Johnstone, C (Fermilab) ; Koscielniak, S R (TRIUMF)
EMMA (Electron Machine with Many Applications) is a prototype non-scaling electron FFAG to be hosted at Daresbury Laboratory. NS-FFAGs related to EMMA have an unprecedented potential for medical accelerators for carbon and proton hadron therapy. [...]
2010
Published version from PAC09: PDF;
In : Particle Accelerator Conference 2009, Vancouver, Canada, 04 - 08 May 2009, pp.FR5REP109
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10.
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LHC Beam Loss Monitoring System Verification Applications
/ Dehning, B (CERN) ; Fadakis, E (CERN) ; Zamantzas, C (CERN) ; Jackson, S (CERN)
The LHC Beam Loss Monitoring (BLM) system is one of the most complex instrumentation systems deployed in the LHC. In addition to protecting the collider, the system also needs to provide a means of diagnosing machine faults and deliver a feedback of losses to the control room as well as to several systems for their setup and analysis. [...]
CERN-BE-2011-028.-
Geneva : CERN, 2011 - 3 p.
- Published in : Conf. Proc.: C11-05-16.4 (2011) , pp. TUPD44
Fulltext: PDF; Published version from JACoW: PDF;
In : 10th European Workshop on Beam Diagnostics and Instrumentation for Particle Accelerators, Hamburg, Germany, 16 - 18 May 2011, pp.404
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