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BLM Diagnostic Thursday June 19, 2008
1 Jeff Dooling
[email protected]
SLAC SLAC Redwood Room A/B, SLACRedwood Room A/B, SLAC
Thursday, June 19, 2008Thursday, June 19, 2008
BLM Testing at APSBLM Testing at APS
Jeff DoolingArgonne National Laboratory
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BLM Diagnostic Thursday June 19, 2008
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[email protected]
Measurements at APS
What do they tell us?
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BLM Diagnostic Thursday June 19, 2008
3 Jeff Dooling
[email protected]
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
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BLM Diagnostic Thursday June 19, 2008
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[email protected]
APS CD
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BLM Diagnostic Thursday June 19, 2008
5 Jeff Dooling
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CD Loss Signals during Top-UP
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BLM Diagnostic Thursday June 19, 2008
6 Jeff Dooling
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CD Loss Signals during Top-Up--with large signals the amplitude saturates
but the width keeps growing
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BLM Diagnostic Thursday June 19, 2008
7 Jeff Dooling
[email protected]
FO Beam Loss Position Monitor (BLPM)
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BLM Diagnostic Thursday June 19, 2008
8 Jeff Dooling
[email protected]
BLPM Loss Signals during Top Up injection
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BLM Diagnostic Thursday June 19, 2008
9 Jeff Dooling
[email protected]
Zooming in on the first injection loss case
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BLM Diagnostic Thursday June 19, 2008
10 Jeff Dooling
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Zooming in further on the first injection loss case
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BLM Diagnostic Thursday June 19, 2008
11 Jeff Dooling
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LCLS BLM
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BLM Diagnostic Thursday June 19, 2008
12 Jeff Dooling
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Prototype testing at APS
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BLM Diagnostic Thursday June 19, 2008
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Prototype testing at APS—to go on in S35 and S9
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BLM Diagnostic Thursday June 19, 2008
14 Jeff Dooling
[email protected]
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