1. BLM Diagnostic Thursday June 19, 2008 Jeff Dooling jcdooling@anl.gov 1 SLAC Redwood Room A/B, SLAC Thursday, June 19, 2008 BLM Testing at APS Jeff Dooling Argonne National Laboratory

2. BLM Diagnostic Thursday June 19, 2008 Jeff Dooling jcdooling@anl.gov 2 Measurements at APS What do they tell us?

3. BLM Diagnostic Thursday June 19, 2008 Jeff Dooling jcdooling@anl.gov 3 Cerenkov Detector (CD) loss monitors in the APS SR Distributed around the SR, ~1 per sector Generally on the outboard side ~10 cm from the beam centerline Small fused-silica, cylindrical radiators (8-mm OD, 8-mm length), V=0.4 cc Close-coupled to small PMT

4. BLM Diagnostic Thursday June 19, 2008 Jeff Dooling jcdooling@anl.gov 4 APS CD

5. BLM Diagnostic Thursday June 19, 2008 Jeff Dooling jcdooling@anl.gov 5 CD Loss Signals during Top-UP

6. BLM Diagnostic Thursday June 19, 2008 Jeff Dooling jcdooling@anl.gov 6 CD Loss Signals during Top-Up --with large signals the amplitude saturates but the width keeps growing

7. BLM Diagnostic Thursday June 19, 2008 Jeff Dooling jcdooling@anl.gov 7 FO Beam Loss Position Monitor (BLPM)

8. BLM Diagnostic Thursday June 19, 2008 Jeff Dooling jcdooling@anl.gov 8 BLPM Loss Signals during Top Up injection

9. BLM Diagnostic Thursday June 19, 2008 Jeff Dooling jcdooling@anl.gov 9 Zooming in on the first injection loss case

10. BLM Diagnostic Thursday June 19, 2008 Jeff Dooling jcdooling@anl.gov 10 Zooming in further on the first injection loss case

11. BLM Diagnostic Thursday June 19, 2008 Jeff Dooling jcdooling@anl.gov 11 LCLS BLM

12. BLM Diagnostic Thursday June 19, 2008 Jeff Dooling jcdooling@anl.gov 12 Prototype testing at APS

13. BLM Diagnostic Thursday June 19, 2008 Jeff Dooling jcdooling@anl.gov 13 Prototype testing at APS —to go on in S35 and S9

14. BLM Diagnostic Thursday June 19, 2008 Jeff Dooling jcdooling@anl.gov 14 Acknowledgments Bingxin Yang and Bill Berg have contributed many hours to this project Also need to thank Adam Brill, Matt Kasa, Lester Erwin, Tony Pietryla, Mike Merritt, Liz Moog, and C.Y. Yao