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Moretti, A.

Paper Title Page
MO301 Overview of the High Intensity Neutrino Source Linac R&D Program at Fermilab 36
 
  • R.C. Webber, G. Apollinari, J.-P. Carneiro, I.G. Gonin, B.M. Hanna, S. Hays, T.N. Khabiboulline, G. Lanfranco, R.L. Madrak, A. Moretti, T.H. Nicol, T.M. Page, E. Peoples, H. Piekarz, L. Ristori, G.V. Romanov, C.W. Schmidt, J. Steimel, I. Terechkine, R.L. Wagner, D. Wildman
    Fermilab, Batavia
  • P.N. Ostroumov
    ANL, Argonne
  • W.M. Tam
    IUCF, Bloomington, Indiana
 
 

Funding: Fermilab is operated by Fermi Research Alliance, LLC under Contract No. DE-AC02-07CH11359 with the United States Department of Energy.
The High Intensity Neutrino Source (HINS) linac R&D program at Fermilab aims to construct and operate a first-of-a-kind, 60 MeV, superconducting H- linac. The machine will demonstrate acceleration of high intensity beam using superconducting spoke cavities from 10 MeV, solenoidal focusing optics throughout for axially-symmetric beam to control halo growth, and operation of many cavities from a single high power rf source for acceleration of non-relativistic particles.

 

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Slides

 
MOP011 An 8 GeV CW Linac With High Potential Beam Power 76
 
  • M. Popovic, C.M. Ankenbrandt, A. Moretti, S. Nagaitsev, T.J. Peterson, G.V. Romanov, N. Solyak, V.P. Yakovlev, K. Yonehara
    Fermilab, Batavia
  • R.A. Baartman
    TRIUMF, Vancouver
  • I.B. Enchevich, R.P. Johnson, M.L. Neubauer
    Muons, Inc, Batavia
  • R.A. Rimmer
    JLAB, Newport News, Virginia
 
 

Modern technology allows us to consider operating an 8 GeV Linac in a cw mode to accelerate a high-current H- beam. By using appropriate accumulation rings, the linac could provide simultaneous beams for direct neutrino production, neutrino factories, fixed target experiments, and muon colliders. Several other unique accelerator applications could also be served and improved by the same continuous beam, including studies of energy production and nuclear waste reduction by transmutation, rare muon decay searches, and muon catalyzed fusion. The trade-offs between cw operation compared to pulsed operation that are considered include the maximum rf gradient and corresponding linac length or energy, the rf frequency, rf peak power and coupler requirements, and refrigeration. Methods for accumulating the beam from a cw linac to serve the special needs of the potential future Fermilab programs mentioned above are considered. In this paper we also examine the use of a cyclotron as a source of high current beams to reduce the cost and complexity of the linac front end.

 
MOP012 High Power Test of Room Temperature Spoke Cavities for HINS at Fermilab 79
 
  • W.M. Tam, G. Apollinari, T.N. Khabiboulline, R.L. Madrak, A. Moretti, L. Ristori, G.V. Romanov, J. Steimel, R.C. Webber, D. Wildman
    Fermilab, Batavia
  • W.M. Tam
    IUCF, Bloomington, Indiana
 
 

The High Intensity Neutrino Source (HINS) R&D program at Fermilab will build a new 65 MeV test linac to demonstrate new technologies for application in a high intensity hadron linac front-end. The HINS warm section is composed of an ion source, a radio frequency quadrupole, a medium energy beam transport and 16 room temperature Crossbar H-type (RT-CH) cavities that accelerate the beam to 10 MeV (β=0.1422). The RT-CH cavities are separated by superconducting solenoids enclosed in individual cryostats. Beyond 10 MeV, the design uses superconducting spoke resonators. In this paper, we illustrate the completion of four RT-CH cavities and explain latest modifications in the mechanical and radio frequency (RF) designs. Cavities RF measurements and tuning performed at Fermilab are also discussed. Descriptions of the HINS R&D Facility including high power RF, vacuum, cooling and low level RF systems will be given. Finally, the history of RF conditioning and the results of high power tests of RT-CH cavities will be discussed.

 
MOP041 The Fabrication and Initial Testing of the HINS RFQ 160
 
  • G. Apollinari, B.M. Hanna, T.N. Khabiboulline, A. Lunin, A. Moretti, T.M. Page, G.V. Romanov, J. Steimel, R.C. Webber, D. Wildman
    Fermilab, Batavia
  • P.N. Ostroumov
    ANL, Argonne
 
 

Fermilab is designing and building the HINS front-end test facility. The HINS proton linear accelerator consists of a normal-conducting and a superconducting section. The normal-conducting (warm) section is composed of an ion source, a 2.5 MeV radio frequency quadrupole (RFQ), a medium energy beam transport, and 16 normal-conducting crossbar H-type cavities that accelerate the beam to 10 MeV. Production of 325 MHz 4-vane RFQ is recently completed. This paper presents the design concepts for this RFQ, the mechanical design and tuning results. Issues that arose during manufacturing of the RFQ will be discussed and specific corrective modifications will be explained. The preliminary results of initial testing of RFQ at the test facility will be presented and comparisons with the former simulations will also be discussed.