Beam profile wire-scanner/halo-scraper sensor analog interface electronics
- James F.
- Dean S.
- Lisa A.
- John Douglas
- Matthew W.
- Derwin G.
The halo experiment presently being conducted at the Low Energy Demonstration Accelerator (LEDA) at Los Alamos National Laboratory utilizes a generally traditional wire scanner for measurement of the beam core profile and a graphite scraper for measurement of the tails of the beam distribution. A lossy integrator is used to detect the replacement charge flowing to the wire and scraper. Independent programmable dc-bias voltages are applied to the wire and the scraper through the analog electronic interface to optimize charge capture from the two sensors. A programmable guard voltage is applied to isolate the scraper from the resistivity of the cooling system. Programmable gain provides a total dynamic range in the analog electronics of greater than about one part in 10{sup 6}. The analog signal is digitized to 14 bits plus sign, and the equivalent input noise is nominally 30fC.
- Research Organization:
- Los Alamos National Laboratory
- Sponsoring Organization:
- DOE
- OSTI ID:
- 975344
- Report Number(s):
- LA-UR-01-2912
- Country of Publication:
- United States
- Language:
- English
Similar Records
ANALYSIS OF DATA FROM THE LEDA WIRE SCANNER/HALO SCRAPER
BEAM-PROFILE INSTRUMENTATION FOR BEAM-HALO MEASUREMENT : OVERALL DESCRIPTION, OPERATION, AND BEAM DATA.
THE FINAL MECHANICAL DESIGN, FABRICATION, AND COMMISSIONING OF A WIRE SCANNER AND SCRAPER ASSEMBLY FOR HALO-FORMATION MEASUREMENTS IN A PROTON BEAM
Conference
·
Tue May 01 00:00:00 EDT 2001
·
OSTI ID:781005
BEAM-PROFILE INSTRUMENTATION FOR BEAM-HALO MEASUREMENT : OVERALL DESCRIPTION, OPERATION, AND BEAM DATA.
Conference
·
Sun Dec 31 23:00:00 EST 2000
·
OSTI ID:975317
THE FINAL MECHANICAL DESIGN, FABRICATION, AND COMMISSIONING OF A WIRE SCANNER AND SCRAPER ASSEMBLY FOR HALO-FORMATION MEASUREMENTS IN A PROTON BEAM
Conference
·
Sat Mar 31 23:00:00 EST 2001
·
OSTI ID:782794