Title :
Wide Dynamic Range Beam Profile Monitor
Author :
Lee, D.M. ; Brown, D. ; Hardekopf, R. ; Bilskie, J.R. ; van Dyck, O.B.
Author_Institution :
Los Alamos National Laboratory PO Box 1663, Los Alamos, NM 87545
Abstract :
An economical harp multiplexer system has been developed to achieve a wide dynamic range. The harp system incorporates a pneumatically actuated harp detector with ceramic boards and carbon wires; a high-sensitivity multiplexer packaged in a double-wide NIM module; and flat, shielded ribbon cable consisting of individual twisted pairs. The system multiplexes 30 wires in each of the x and y planes simultaneously and operates with or without computer control. The system has operated in beams of 100 nA to 1 mA, 1-to 120-Hz repetition rate, with a signal-to-noise ratio of greater than 10/1.
Keywords :
Cable shielding; Ceramics; Control systems; Detectors; Dynamic range; Monitoring; Multiplexing; Packaging; Signal to noise ratio; Wires;
Journal_Title :
Nuclear Science, IEEE Transactions on
DOI :
10.1109/TNS.1985.4333783
