IBIC2012 - List of Authors (Pikin, A.I.)

Paper

Title

Page

Gatling Gun Test Stand Instrumentation

474

D.M. Gassner, I. Ben-Zvi, J.C. Brutus, C. Liu, M.G. Minty, A.I. Pikin, O.H. Rahman, E.J. Riehn, J. Skaritka, E. Wang
BNL, Upton, Long Island, New York, USA

In order to reach the design eRHIC luminosity 50mA of polarized electron current is needed. This is far beyond what the present state-of-the-art polarized electron cathode can deliver. A high average polarized current injector based on the Gatling Gun principle is being designed. This technique will employ multiple cathodes and combine their multiple bunched beams along the same axis. A proof-of-principle test bench will be constructed that includes a 220 keV Gatling Gun, beam combiner, diagnostics station, and collector. The challenges for the instrumentation systems and the beam diagnostics that will measure current, profile, position, and halo will be described.

THCB01

Electron-Lens Test Stand Instrumentation Progress

602

T.A. Miller, J.N. Aronson, D.M. Gassner, X. Gu, A.I. Pikin, P. Thieberger
BNL, Upton, Long Island, New York, USA

Funding: Work supported by B.S.A, LLC under contract No. DE-AC02-98CH10886 with the U.S. Department of Energy.
In preparation for installation of Electron Lenses into RHIC, planned for late 2012, a working test stand is in use testing the performance of the gun, collector, modulator, instrumentation and controls. While testing & operating the instrumentation, both progress and pitfalls were encountered. Results are presented from issues including ground loop signals generated by the DCCTs, static magnetic field interference, competing YAG screen illumination techniques, YAG crystal damage during beam operation, performance of the four quadrant beam scraper electrodes, and challenges in measuring beam current in conductors. Working knowledge and insight into each of these systems has been gained through difficulties leading to success. These insights are presented with supporting data and images.

Slides THCB01 [32.453 MB]

Paper	Title	Page
TUPB51	Gatling Gun Test Stand Instrumentation	474
	D.M. Gassner, I. Ben-Zvi, J.C. Brutus, C. Liu, M.G. Minty, A.I. Pikin, O.H. Rahman, E.J. Riehn, J. Skaritka, E. Wang BNL, Upton, Long Island, New York, USA
	In order to reach the design eRHIC luminosity 50mA of polarized electron current is needed. This is far beyond what the present state-of-the-art polarized electron cathode can deliver. A high average polarized current injector based on the Gatling Gun principle is being designed. This technique will employ multiple cathodes and combine their multiple bunched beams along the same axis. A proof-of-principle test bench will be constructed that includes a 220 keV Gatling Gun, beam combiner, diagnostics station, and collector. The challenges for the instrumentation systems and the beam diagnostics that will measure current, profile, position, and halo will be described.

THCB01	Electron-Lens Test Stand Instrumentation Progress	602
	T.A. Miller, J.N. Aronson, D.M. Gassner, X. Gu, A.I. Pikin, P. Thieberger BNL, Upton, Long Island, New York, USA
	Funding: Work supported by B.S.A, LLC under contract No. DE-AC02-98CH10886 with the U.S. Department of Energy. In preparation for installation of Electron Lenses into RHIC, planned for late 2012, a working test stand is in use testing the performance of the gun, collector, modulator, instrumentation and controls. While testing & operating the instrumentation, both progress and pitfalls were encountered. Results are presented from issues including ground loop signals generated by the DCCTs, static magnetic field interference, competing YAG screen illumination techniques, YAG crystal damage during beam operation, performance of the four quadrant beam scraper electrodes, and challenges in measuring beam current in conductors. Working knowledge and insight into each of these systems has been gained through difficulties leading to success. These insights are presented with supporting data and images.
	Slides THCB01 [32.453 MB]