IPAC2013 - List of Authors (Hanna, B.M.)

Paper	Title	Page
MOPWA062	Transverse Beam Halo Measurements at High Intensity Neutrino Source (HINS) using Vibrating Wire Monitor	819
	M. Chung, B.M. Hanna, V.E. Scarpine, V.D. Shiltsev, J. Steimel Fermilab, Batavia, USA S. Artinian BERGOZ Instrumentation, Saint Genis Pouilly, France S.G. Arutunian ANSL, Yerevan, Armenia
	Funding: Research supported by the U.S. Department of Energy. Measurement and control of transverse beam halo will be critical for the applications of future high-intensity hadron linacs. In particular, beam profile monitors require a very high dynamic range when using for transverse beam halo measurements. In this study, the Vibrating Wire Monitor (VWM) with aperture 60 mm was installed at the High Intensity Neutrino Source (HINS) front-end to measure transverse beam halo. A vibrating wire is excited at its resonance frequency with the help of a magnetic feedback loop, and the vibrating and sensitive wires are connected through a balanced arm. The sensitive wire is moved into the beam halo region by a stepper motor controlled translational stage. We study the feasibility of the vibrating wire for transverse beam halo measurements in the low-energy front-end of the proton linac.

THPFI085	Status of PXIE MEBT Absorber Development	3490
	A.V. Shemyakin, C.M. Baffes, K. Carlson, A.Z. Chen, Y.I. Eidelman, B.M. Hanna, L.R. Prost, J.T. Walton Fermilab, Batavia, USA
	Funding: Fermilab is operated by Fermi Research Alliance, LLC, under Contract No. DE-AC02-07CH11359 with the United States Department of Energy One of the goals of the Project X Injector Experiment (PXIE) at Fermilab is to demonstrate the capability to form an arbitrary bunch pattern from an initially CW 162.5 MHz H⁻ bunch train coming out of an RFQ. The bunch-by-bunch selection will be taking place in the 2.1 MeV Medium Energy Beam Transport (MEBT) by directing the undesired bunches onto an absorber that needs to withstand a beam power of up to 21 kW, focused onto a spot with a ~2 mm rms radius. A ¼ - size prototype of the absorber is manufactured, and its thermal properties are tested with an electron beam generating a peak power density similar to the one expected during normal operation of the PXIE beam line. The paper describes the absorber concept, the prototype, the testing procedure with the electron beam, and the latest results.

Paper

Title

Page

Transverse Beam Halo Measurements at High Intensity Neutrino Source (HINS) using Vibrating Wire Monitor

819

M. Chung, B.M. Hanna, V.E. Scarpine, V.D. Shiltsev, J. Steimel
Fermilab, Batavia, USA
S. Artinian
BERGOZ Instrumentation, Saint Genis Pouilly, France
S.G. Arutunian
ANSL, Yerevan, Armenia

Funding: Research supported by the U.S. Department of Energy.
Measurement and control of transverse beam halo will be critical for the applications of future high-intensity hadron linacs. In particular, beam profile monitors require a very high dynamic range when using for transverse beam halo measurements. In this study, the Vibrating Wire Monitor (VWM) with aperture 60 mm was installed at the High Intensity Neutrino Source (HINS) front-end to measure transverse beam halo. A vibrating wire is excited at its resonance frequency with the help of a magnetic feedback loop, and the vibrating and sensitive wires are connected through a balanced arm. The sensitive wire is moved into the beam halo region by a stepper motor controlled translational stage. We study the feasibility of the vibrating wire for transverse beam halo measurements in the low-energy front-end of the proton linac.

THPFI085

Status of PXIE MEBT Absorber Development

3490

A.V. Shemyakin, C.M. Baffes, K. Carlson, A.Z. Chen, Y.I. Eidelman, B.M. Hanna, L.R. Prost, J.T. Walton
Fermilab, Batavia, USA

Funding: Fermilab is operated by Fermi Research Alliance, LLC, under Contract No. DE-AC02-07CH11359 with the United States Department of Energy
One of the goals of the Project X Injector Experiment (PXIE) at Fermilab is to demonstrate the capability to form an arbitrary bunch pattern from an initially CW 162.5 MHz H⁻ bunch train coming out of an RFQ. The bunch-by-bunch selection will be taking place in the 2.1 MeV Medium Energy Beam Transport (MEBT) by directing the undesired bunches onto an absorber that needs to withstand a beam power of up to 21 kW, focused onto a spot with a ~2 mm rms radius. A ¼ - size prototype of the absorber is manufactured, and its thermal properties are tested with an electron beam generating a peak power density similar to the one expected during normal operation of the PXIE beam line. The paper describes the absorber concept, the prototype, the testing procedure with the electron beam, and the latest results.