1 / 4

Controlled Transverse Blowup with ADT “plan” for MD block #3 / 2011 W. Hofle

Controlled Transverse Blowup with ADT “plan” for MD block #3 / 2011 W. Hofle With participation and input from: S. Redaelli , R. Schmidt, D. Valuch. Motivation and procedure for transverse blow-up with ADT (1) efficient procedure for transverse loss maps

dee
Download Presentation

Controlled Transverse Blowup with ADT “plan” for MD block #3 / 2011 W. Hofle

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Controlled Transverse Blowup with ADT “plan” for MD block #3 / 2011 W. Hofle With participation and input from: S. Redaelli, R. Schmidt, D. Valuch W. Hofle LSWG - 16. August 2011

  2. Motivation and procedure • for transverse blow-up with ADT (1) • efficient procedure for transverse loss maps • spec: loose equivalent of one nominal bunch on timescale of 1s  10s • needed at 450 GeV and 7 TeV • time-gating to target individual slices of beam (no need to re-fill for a 2nd map) • 1 fill with 10 probes for setting-up during the MD • 2 x fills with 12 nominal bunches (two schemes are proposed) for demonstration • evaluate feasibility to do loss maps with this technique on full beam • restrict MD to 450 GeV, maximum intensity 12 nominal bunches • gating to be checked with 10 probe bunches W. Hofle LSWG - 16. August 2011

  3. Motivation and procedure • for transverse blowup-up with ADT (2) • aperture measurements • use single probe beam with 1x1010 per bunch • restriction to 450 GeV only ? • slow and smooth blowup  white noise, full spectrum thought to be best • observe losses around ring  identify aperture limit • at regular intervals wirescans to monitor the emittances quantification • no gating required • estimate: 1 hour per beam and plane, allocate 2 hours to aperture measurement • may not have enough time in this MD for all planes and beams W. Hofle LSWG - 16. August 2011

  4. Preparations so far (D. Valuch, M. Jaussi, D. Jacquet) white noise deployed on 1 damper, ready to test (need to test before MD) band limiting under test a) low-pass b) band-pass band limitation will be used for loss maps  better use of available power gating implemented on FPGA  software interface to be finished (testing !) (gating is similar to abort gap cleaning, i.e. a “copy”) W. Hofle LSWG - 16. August 2011

More Related