BIW2012 - List of Authors (McCrady, R.C.)

Paper

Title

Page

Beam Position and Phase Monitors Characterized and Installed in the LANSCE CCL

56

J.D. Gilpatrick, V.G. Kutac, D. Martinez, R.C. McCrady, J.F. O'Hara, F.R. Olivas, R.B. Shurter, H.A. Watkins
LANL, Los Alamos, New Mexico, USA

Funding: Work supported by the U.S. Department of Energy.
The Los Alamos Neutron Science Center (LANSCE) Risk Mitigation Project is in the process of replacing older Coupled-Cavity-Linac Beam-Position Monitors (BPMs) that in most locations include a separate Delta-T loop with newer Beam Position and Phase Monitors (BPPMs), including their associated electronics and cable plants. Twenty-three BPPMs have thus far been installed and many have monitored the charged particle beam. The installation of these newer BPPMs is the first step to installing complete BPPM measurement systems. Prior to the installation, a characterization of each BPPM took place. The characterization procedure includes a mechanical inspection, a vacuum testing, and associated electrical tests. The BPPM electrical tests for all four electrodes include contact resistance measurements, Time Domain Reflectometer (TDR) measurements, relative 201.25-MHz phase measurements, and finally a set of position-sensitive mapping measurements were performed which included associated fitting routines. This paper will show these data for a typical characterized BPPM.

Poster MOPG015 [4.472 MB]

MOPG016

Beam Position and Phase Monitors for the LANSCE Linac

59

R.C. McCrady, J.D. Gilpatrick, H.A. Watkins
LANL, Los Alamos, New Mexico, USA

New beam position and phase monitors are under development for the linac at the Los Alamos Neutron Science Center. We are considering many options for the electronic instrumentation to process the signals and provide position and phase data with the necessary precision and flexibility to serve the various required functions. Two salient requirements are flexibility in the signal processing and wide dynamic range. Well present the requirements of the system, the various options under consideration for instrumentation and processing, along with the advantages and shortcomings of these options.

Paper	Title	Page
MOPG015	Beam Position and Phase Monitors Characterized and Installed in the LANSCE CCL	56
	J.D. Gilpatrick, V.G. Kutac, D. Martinez, R.C. McCrady, J.F. O'Hara, F.R. Olivas, R.B. Shurter, H.A. Watkins LANL, Los Alamos, New Mexico, USA
	Funding: Work supported by the U.S. Department of Energy. The Los Alamos Neutron Science Center (LANSCE) Risk Mitigation Project is in the process of replacing older Coupled-Cavity-Linac Beam-Position Monitors (BPMs) that in most locations include a separate Delta-T loop with newer Beam Position and Phase Monitors (BPPMs), including their associated electronics and cable plants. Twenty-three BPPMs have thus far been installed and many have monitored the charged particle beam. The installation of these newer BPPMs is the first step to installing complete BPPM measurement systems. Prior to the installation, a characterization of each BPPM took place. The characterization procedure includes a mechanical inspection, a vacuum testing, and associated electrical tests. The BPPM electrical tests for all four electrodes include contact resistance measurements, Time Domain Reflectometer (TDR) measurements, relative 201.25-MHz phase measurements, and finally a set of position-sensitive mapping measurements were performed which included associated fitting routines. This paper will show these data for a typical characterized BPPM.
	Poster MOPG015 [4.472 MB]

MOPG016	Beam Position and Phase Monitors for the LANSCE Linac	59
	R.C. McCrady, J.D. Gilpatrick, H.A. Watkins LANL, Los Alamos, New Mexico, USA
	New beam position and phase monitors are under development for the linac at the Los Alamos Neutron Science Center. We are considering many options for the electronic instrumentation to process the signals and provide position and phase data with the necessary precision and flexibility to serve the various required functions. Two salient requirements are flexibility in the signal processing and wide dynamic range. Well present the requirements of the system, the various options under consideration for instrumentation and processing, along with the advantages and shortcomings of these options.