PAC2013 - List of Authors (Zisman, M.S.)

Paper

Title

Page

Multipacting Study for the RF Test of the MICE 201 MHz RF Cavity at Fermilab MTA

1037

T.H. Luo, D.J. Summers
UMiss, University, Mississippi, USA
A.J. DeMello, D. Li, P. Pan, S.P. Virostek, M.S. Zisman
LBNL, Berkeley, California, USA

One 201 MHz RF cavity for the Muon Ionization Cooling Experiment (MICE) will be tested at Muon Test Area (MTA) in Fermilab. Before the Coupling Coil is ready, we will use the fringe field of the Lab G magnet to study the cavity performance in external B field, which can significantly change the multipacting situation in cavities. In this report, we present the multipacting study of the MICE 201 MHz cavity with the fringe field of Lab G magnet. We will survey the co-axial waveguide, the cavity body and the loop coupler region at different power levels and different fringe field magnitudes.

THPHO18

Status of the Muon Ionization Cooling Experiment (MICE)

1340

Y. Torun
IIT, Chicago, Illinois, USA
M.S. Zisman
LBNL, Berkeley, California, USA

Funding: This work was supported by the Office of Science, U.S. Department of Energy under DOE contract number DE-AC02-05CH11231.
A muon collider and a muon-based neutrino factory are attractive options for particle physics. Their optimal realization requires demonstration of muon ionization cooling, a technique to rapidly reduce the emittance of the tertiary muon beam. MICE, performed by a team from the U.S., Europe, and Asia and sited at Rutherford Appleton Laboratory, will provide this demonstration. The experiment comprises one cell of a representative cooling channel, bracketed upstream and downstream by spectrometer solenoid magnets containing scintillating fiber tracking detectors. Characterization of the ISIS muon beam line is complete. Fabrication of the superconducting spectrometer solenoids is nearly complete, with one having passed its acceptance tests, and the second nearly ready for testing. The first focus coil is presently being tested, with a second unit ready shortly. A prototype coil for the 1.5-m-diameter coupling coil is also being tested, and its cryostat is ready for fabrication. Other required hardware, including RF cavities and liquid-H absorbers, is also fabricated. The status of the major hardware items and plans for carrying out the experiment are described.

TUOBA2

The DOE-HEP Accelerator R&D Stewardship Program

388

M.S. Zisman
US DOE, Washington, USA
E.R. Colby
OHEP/DOE, Germantown, MD, USA

Funding: Work supported by US Dept. of Energy, Office of Science, Office of High Energy Physics.
Since the Accelerators for America's Future (AfAF) Symposium in 2009, the U.S. Dept. of Energy’s Office of High Energy Physics (DOE-HEP) has worked toward broadening its accelerator R&D activities beyond support of only discovery science to include medicine, energy and environment, defense and security, and industry. Accelerators play a key role in many aspects of everyday life, and improving their capabilities will enhance U.S. economic competitiveness. In 2011, a SLAC-led task force was initiated by HEP to develop more fully the information from the original AfAF Symposium. Subsequently, a DOE-HEP concept (coordinated with the other cognizant Office of Science program offices) was developed for accelerator R&D stewardship. Here we describe the evolution of the stewardship task starting from its origins in the ongoing accelerator R&D program, the mission of the new program, and initial steps being taken to implement it. Several initiatives are currently being considered to launch the program, and these will be indicated. Involvement of the accelerator community in developing ideas for future stewardship activities will be crucial to the ultimate success of the program.

Slides TUOBA2 [4.686 MB]

Paper	Title	Page
WEPMA26	Multipacting Study for the RF Test of the MICE 201 MHz RF Cavity at Fermilab MTA	1037
	T.H. Luo, D.J. Summers UMiss, University, Mississippi, USA A.J. DeMello, D. Li, P. Pan, S.P. Virostek, M.S. Zisman LBNL, Berkeley, California, USA
	One 201 MHz RF cavity for the Muon Ionization Cooling Experiment (MICE) will be tested at Muon Test Area (MTA) in Fermilab. Before the Coupling Coil is ready, we will use the fringe field of the Lab G magnet to study the cavity performance in external B field, which can significantly change the multipacting situation in cavities. In this report, we present the multipacting study of the MICE 201 MHz cavity with the fringe field of Lab G magnet. We will survey the co-axial waveguide, the cavity body and the loop coupler region at different power levels and different fringe field magnitudes.

THPHO18	Status of the Muon Ionization Cooling Experiment (MICE)	1340
	Y. Torun IIT, Chicago, Illinois, USA M.S. Zisman LBNL, Berkeley, California, USA
	Funding: This work was supported by the Office of Science, U.S. Department of Energy under DOE contract number DE-AC02-05CH11231. A muon collider and a muon-based neutrino factory are attractive options for particle physics. Their optimal realization requires demonstration of muon ionization cooling, a technique to rapidly reduce the emittance of the tertiary muon beam. MICE, performed by a team from the U.S., Europe, and Asia and sited at Rutherford Appleton Laboratory, will provide this demonstration. The experiment comprises one cell of a representative cooling channel, bracketed upstream and downstream by spectrometer solenoid magnets containing scintillating fiber tracking detectors. Characterization of the ISIS muon beam line is complete. Fabrication of the superconducting spectrometer solenoids is nearly complete, with one having passed its acceptance tests, and the second nearly ready for testing. The first focus coil is presently being tested, with a second unit ready shortly. A prototype coil for the 1.5-m-diameter coupling coil is also being tested, and its cryostat is ready for fabrication. Other required hardware, including RF cavities and liquid-H absorbers, is also fabricated. The status of the major hardware items and plans for carrying out the experiment are described.

TUOBA2	The DOE-HEP Accelerator R&D Stewardship Program	388
	M.S. Zisman US DOE, Washington, USA E.R. Colby OHEP/DOE, Germantown, MD, USA
	Funding: Work supported by US Dept. of Energy, Office of Science, Office of High Energy Physics. Since the Accelerators for America's Future (AfAF) Symposium in 2009, the U.S. Dept. of Energy’s Office of High Energy Physics (DOE-HEP) has worked toward broadening its accelerator R&D activities beyond support of only discovery science to include medicine, energy and environment, defense and security, and industry. Accelerators play a key role in many aspects of everyday life, and improving their capabilities will enhance U.S. economic competitiveness. In 2011, a SLAC-led task force was initiated by HEP to develop more fully the information from the original AfAF Symposium. Subsequently, a DOE-HEP concept (coordinated with the other cognizant Office of Science program offices) was developed for accelerator R&D stewardship. Here we describe the evolution of the stewardship task starting from its origins in the ongoing accelerator R&D program, the mission of the new program, and initial steps being taken to implement it. Several initiatives are currently being considered to launch the program, and these will be indicated. Involvement of the accelerator community in developing ideas for future stewardship activities will be crucial to the ultimate success of the program.
	Slides TUOBA2 [4.686 MB]