Simulations of the LHC high luminosity monitors at beam energies from 3.5 TeV to 7.0 TeV [electronic resource].
- Washington, D.C. : United States. Dept. of Energy, 2011. and Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
- Additional Creators:
- Brookhaven National Laboratory, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
- Restrictions on Access:
- Free-to-read Unrestricted online access
- We have constructed two pairs of fast ionization chambers (BRAN) for measurement and optimization of luminosity at IR1 and IR5 of the LHC. These devices are capable of monitoring the performance of the LHC at low luminosity 10²⁸ cm⁻²s⁻¹ during beam commissioning all the way up to the expected full luminosity of 10³⁴ cm⁻²s⁻¹ at 7.0 TeV. The ionization chambers measure the intensity of hadronic/electromagnetic showers produced by the forward neutral particles of LHC collisions. To predict and improve the understanding of the BRAN performance, we created a detailed FLUKA model of the detector and its surroundings. In this paper, we describe the model and the results of our simulations including the detector's estimated response to pp collisions at beam energies of 3.5, 5.0, and 7.0 TeV per beam. In addition, these simulations show the sensitivity of the BRAN to the crossing angle of the two LHC beams. It is shown that the BRAN sensitivity to the crossing angle is proportional to the measurement of crossing angle by the LHC beam position monitors.
- Published through SciTech Connect., 03/28/2011., "bnl--94204-2011-cp", "KB0202011", 2011 Particle Accelerator Conference (PAC'11); New York, NY; 20110328 through 20110401., and Turner, W.C.; Ratti, A.; Miyamoto, R.; Matis, H.S.; Humphreys, P.; Stiller, J.
- Funding Information:
- DE-AC02-98CH10886, KBCH139, and 18054
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