ORNL, Oak Ridge, Tennessee
The Spallation Neutron Source (SNS) has been in commissioning and then operation since 2002. Beam Instruments for full operation and transition to beam powers of 1.0 MW and beyond needs to evolve to mostly non-intrusive, parasitically available and functioning at 30-60 Hz. High power operation necessitates careful monitoring to minimize un-controlled losses. In this paper, we discuss the overview of all diagnostics and present new improvements to, beam loss monitoring system, transverse and longitudinal laser profile monitors, introduction of laser emittance, addition of view screens at various locations and Mid-IR camera to observe electron deposit due to carbon foils at ring injection area. We also present the challenges in the ring instrumentations to have three decades of response and .01% losses.
Fermilab, Batavia, Illinois
KEK, Ibaraki
Working group F was charged with presentations and discussions on diagnostics and instrumentation of highintensity beams. We had 3 sessions spanning a total time of 330 minutes, in which 13 talks were presented. The presentation time for each talk had to be limited to 15-20 min., in order to allow sufficient time (5-10 min.) for some discussion. This turned out quite well, even though some presentations went longer, not every topic required the anticipated discussion time.
A final discussion session of 110 minutes was held as joint session with working group D (operations).