Author: Roberts, T.J.
Paper Title Page
MOP038 Non-Magnetic Momentum Spectrometer Based on Fast Time-of-Flight System 169
 
  • R.J. Abrams, C.M. Ankenbrandt, G. Flanagan, S.A. Kahn, M. Notani, T.J. Roberts
    Muons, Inc, Batavia, USA
  • H.J. Frisch
    Enrico Fermi Institute, University of Chicago, Chicago, Illinois, USA
 
  Funding: Supported in part by SBIR Grant DE-SC0005445
A new generation of large-area, low cost time-of-flight detectors with time resolutions ≤ 10 ps and space resolutions ≤ 1 mm is being developed for use in nuclear and particle physics experiments, as well as for medical and industrial applications. Such detectors can serve as the basis for measuring momenta without requiring measurement of curvature in magnetic fields. Factors affecting measurement accuracy and simulation results are presented.
 
 
MOP040 Fast Time-of-Flight System for Muon Cooling Experiments 172
 
  • R.J. Abrams, C.M. Ankenbrandt, G. Flanagan, S.A. Kahn, M. Notani, T.J. Roberts
    Muons, Inc, Batavia, USA
  • H.J. Frisch
    Enrico Fermi Institute, University of Chicago, Chicago, Illinois, USA
 
  Funding: Supported in part by SBIR Grant DE-SC0005445.
A new generation of large-area, low cost time-of-flight detectors with time resolutions ≤ 10 ps and space resolutions ≤ 1 mm is being developed for use in nuclear and particle physics experiments, as well as for medical and industrial applications. Such detectors are being considered for use in muon cooling channel tests. Designs and fabrication of prototype planes and associated readout electronics are described. Results of simulations of time and space resolutions are presented.
 
 
MOP152 G4beamline Particle Tracking in Matter Dominated Beam Lines 373
 
  • T.J. Roberts, K.B. Beard
    Muons, Inc, Batavia, USA
  • S. Ahmed
    JLAB, Newport News, Virginia, USA
  • D. Huang, D.M. Kaplan
    Illinois Institute of Technology, Chicago, Illinois, USA
 
  Funding: Supported in part by USDOE STTR Grant DE-FG02-06ER86281
The G4beamline program is a useful and steadily improving tool to quickly and easily model beam lines and experimental equipment without user programming. It has both graphical and command-line user interfaces. Unlike most accelerator physics codes, it easily handles a wide range of materials and fields, being particularly well suited for the study of muon and neutrino facilities. As it is based on the Geant4 toolkit, G4beamline includes most of what is known about the interactions of particles with matter. We are continuing the development of G4beamline to facilitate its use by a larger set of beam line and accelerator developers. A major new feature is the calculation of space-charge effects. G4beamline is open source and freely available.
 
 
THP088 Beam Induced Detector Backgrounds at a Muon Collider 2300
 
  • S.A. Kahn, M.A.C. Cummings, T.J. Roberts
    Muons, Inc, Batavia, USA
  • D. Hedin, A.O. Morris
    Northern Illinois University, DeKalb, Illinois, USA
  • J.F. Kozminski
    Lewis University, Romeoville, Illinois, USA
 
  Funding: Supported in part by SBIR Grant DE-SC0005447
Muon colliders are considered to be an important future energy frontier accelerator. It is possible to build a large muon collider as a circular machine, even at multi-TeV energies, due to the greatly reduced synchrotron radiation expected from muons. In addition to the same physics processes present in an electron collider, a muon collider will have the potential to produce s-channel resonances such as the various Higgs states at an enhanced rate. For a muon collider with 750 GeV/c mu+ and mu- with 1012 mu per bunch we would expect 4.3x105 muon decays per meter. These muon decays will produce very energetic off momentum electrons that can produce detector backgrounds that can affect the physics. These backgrounds include electrons from muon decays, synchrotron radiation from the decay electrons, hadrons produced by photo-nuclear interactions, coherent and incoherent beam-beam pair production and Bethe-Heitler muon production. In this paper we will discuss these processes and calculate particle fluxes into the detector volume from these background processes.
 
 
THP090 Physics Validation of Monte Carlo Simulations for Detector Backgrounds at a Muon Collider 2303
 
  • A.O. Morris, D. Hedin
    Northern Illinois University, DeKalb, Illinois, USA
  • M.A.C. Cummings, S.A. Kahn, T.J. Roberts
    Muons, Inc, Batavia, USA
  • J.F. Kozminski
    Lewis University, Romeoville, Illinois, USA
 
  Muon colliders are considered to be an important future energy-frontier accelerator. A muon collider could be built as a circular accelerator into the TeV energy range as a result of the reduced synchrotron radiation expected from the larger rest mass of muons. For a muon collider with 750 GeV μ+ and μ- with 1012 μ per bunch, it can be expected that there would be 4.3×105 muon decays per meter per beam. These decays will produce very energetic off-momentum electrons that can produce detector backgrounds that can affect the physics. The main backgrounds include electrons from muon decays, synchrotron radiation from the decay electrons, hadrons produced by photonuclear interactions, coherent and incoherent beam-beam pair-production, and Bethe-Heitler muon production. In this paper we will discuss the simulation results in terms of observed physics processes in G4Beamline.