Author: Abrams, R.J.
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TUPMB026 Magnet System for a Compact Microtron 1164
 
  • S.A. Kahn, R.J. Abrams, M.A.C. Cummings, R.P. Johnson, G.M. Kazakevich
    Muons, Inc, Illinois, USA
  
  Funding: Funded by DOE SBIR grant DE-SC0013795
A compact microtron can be an effective gamma source that can be transported to locations outside the laboratory. As part of a Phase I project we have studied a portable microtron that can accelerate electrons with energies of 6 MeV and above as a source for gamma and neutron production. The mass of the magnet is a significant contribution to the overall mass of the system. This paper will discuss conceptual designs for both permanent magnet and electromagnet systems. The choice of mictrotron RF frequency range is determined by the application requirements. The RF frequency influences the size of the microtron magnet and consequently its weight. We have looked at how the design would vary with the different frequency configurations. 		 
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TUPOY029 Gem*Star Consortium Proposal to Build a Demonstration Accelerator Driven System 1973
 
  • R.P. Johnson, R.J. Abrams, M.A.C. Cummings, T.J. Roberts
    Muons, Inc, Illinois, USA
  • R.B. Vogelaar
    Virginia Polytechnic Institute and State University, Blacksburg, Virginia, USA
  
  The GEM*STAR Consortium of four companies, two universities, and two US national laboratories has formed Mu*STAR, a new company, to fund and build a profitable pilot plant to demonstrate the advantages of subcritical molten-salt-fueled nuclear reactors driven by superconducting RF proton linacs. The GEM*STAR multipurpose reactor design features new accelerator power capabilities, an internal spallation neutron target, and high temperature molten salt fuel with continuous purging of volatile radioactive fission products such that the reactor contains less than a critical mass and almost a million times fewer volatile radioactive fission products than conventional reactors. GEM*STAR is a reactor that without redesign will burn spent nuclear fuel (SNF), natural uranium, thorium, or surplus weapons material. It will operate without the need for a critical core, fuel enrichment, or reprocessing, making it an excellent design overall, and a strong candidate for export. We describe the design and plans for funding a pilot plant that could profitably dispose of excess weapons-grade plutonium.  
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TUPOY050 Microtron-based Intense Neutron Source 2014
 
  • G.M. Kazakevich, R.J. Abrams, R.P. Johnson, S.A. Kahn
    Muons, Inc, Illinois, USA
  • M.A.C. Cummings
    Northern Illinois University, DeKalb, Illinois, USA
  
  Funding: Funded by DOE SBIR grant DE-SC0013795
An L-Band 7.7-9.8 MeV CW relatively inexpensive microtron with a warm accelerating cavity for multi-purpose applications in nuclear medicine and radiation industry is proposed. The microtron with a photo-neutron converter is intended to serve as an intense source of photo-neutrons with yield up to 4·1012 n/s for nuclear medicine or/and producing of short lived isotopes, as a source of gamma-radiation with dose rates up to 130 kR/min·m with a heavy bremsstrahlung target, and as a source of the electron beam with total energy of 9.8 MeV at the average current up to 4.4 mA for various radiation treatments. 		 
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WEPOR030 Gas Filled RF Resonator Hadron Beam Monitor for Intense Neutrino Beam Experiments 2733
 
  • K. Yonehara, A.V. Tollestrup, R.M. Zwaska
    Fermilab, Batavia, Illinois, USA
  • R.J. Abrams, R.P. Johnson, G.M. Kazakevich
    Muons, Inc, Illinois, USA
  • H.M. Dinkel
    University of Missouri, Columbia, Columbia, Missouri, USA
  • B.T. Freemire
    IIT, Chicago, Illinois, USA
  
  Funding: Work supported by Fermilab Research Alliance, LLC under Contract No. DE-AC02-07CH11359 and DOE HEP STTR Grant DE-SC0013795.
MW-class beam facilities are being considered all over the world to produce an intense neutrino beam for fundamental particle physics experiments. A radiation-robust beam monitor system is required to diagnose the primary and secondary beam qualities in high-radiation environments. We have proposed a novel gas-filled RF-resonator hadron beam monitor in which charged particles passing through the resonator produce ionized plasma that changes the permittivity of the gas. The sensitivity of the monitor has been evaluated in numerical simulation. A signal manipulation algorithm has been designed. A prototype system will be constructed and tested by using a proton beam at the MuCool Test Area at Fermilab. 		 
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THPMR052 Compact, Microtron-Based Gamma Source 3522
 
  • R.J. Abrams, M.A.C. Cummings, R.P. Johnson, S.A. Kahn, G.M. Kazakevich
    Muons, Inc, Illinois, USA
  
  Funding: This work was supported U.S. DOE SBIR Grant DE-SC0013795.
The conceptual design of a prototype S-band pulsed, 9.5 MeV compact microtron with type-II injection is described. Estimates of parameters such as beam current and cathode lifetime, and comparisons with X-band and C-band parameters are presented. The electron beam can be extracted at various energies up to 9.5 MeV. Estimated yields of gammas produced at 6.5 MeV operation and estimated yields of gammas and neutrons produced at 9.5 MeV are presented. 		 
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