Linear beam raster for cryogenic targets

Journal Article · Mon Feb 21 00:00:00 EST 2005 · Nuclear Instruments and Methods A

DOI:https://doi.org/10.1016/j.nima.2004.09.034· OSTI ID:838342

Yan, C; Sinkine, N; Wojcik, R

Based on the H-bridge switch technique a linear beam raster system was developed in 2002. The system generates a rectangular raster pattern with highly uniform ({approx}95%) raster density distribution on cryogenic targets. The two raster frequencies are 24.96 and 25.08 kHz. The turning time at the vertex is 200 ns and the scan linearity is 98%. The beam-heating effect on the target is effectively eliminated. The new raster system allows the use of higher beam current toward 200 muA in many of the experimental proposals at end station Hall A and Hall C of the Jefferson lab.

• Research Organization: Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
• Sponsoring Organization: USDOE Office of Energy Research (ER) (US)
• DOE Contract Number: AC05-84ER40150
• OSTI ID: 838342
• Report Number(s): JLAB-PHY-05-15; DOE/ER/40150-4985; TRN: US0501349
• Journal Information: Nuclear Instruments and Methods A, Vol. 539, Issue 1-2; Other Information: Paper is linked at: http://www1.jlab.org/UL/publications/view_pub.cfm?pub_id=5948; PBD: 21 Feb 2005
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
BEAM CURRENTS
CRYOGENICS
TARGETS
CEBAF ACCELERATOR
BEAM SHAPING
BEAM PROFILES