1 / 4

Preparation Status of pp Run11

Preparation Status of pp Run11. Haixin Huang. Time Meeting 12/21/2010. 250 GeV Run Machine Parameter. No of bunches: 109 Protons/bunch: 1.35x1011 Ramp working point Qx , Qy : (28.690,29.675) Store working point Qx , Qy : (28.695,29.685) # of collisions 2 (3 in later half store)

ketan
Télécharger la présentation

Preparation Status of pp Run11

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. Preparation Status of pp Run11 Haixin Huang Time Meeting 12/21/2010

  2. 250 GeV Run Machine Parameter No of bunches: 109 Protons/bunch: 1.35x1011 Ramp working point Qx, Qy: (28.690,29.675) Store working point Qx, Qy: (28.695,29.685) # of collisions 2 (3 in later half store) beta* for collisions 0.65 m @IP6& 8; 3m @ IP2 beta* for non collisions 7.5 m

  3. Critical Systems In Dry Run • Ramp System • First test with the new ramp was successful (to the WFG level), more test will follow • RF application • On going effort continues before the run starts. • RHIC Injection • Teapot model server problem resolved(OS upgrade caused the problem). Additional work needs to be done to add code for smooth switch between 9/28MHz cavities and add spin check code. • RHIC CNI polarimeters • Dry run for down stream polarimeter has finished. Dry run for upstream polarimeter will happen this week. • Tune/orbit feedback on the ramp • Tune feedback is successful, orbit feedback will continue

  4. Schedule and New Items • Jan. 3-9 Cryo cool down, not much beam activity is expected. • Jan. 10-Jan. 27 two and half weeks RHIC setup. • Jan. 28- Feb. 4 ramp up mode, provide collisions overnight. • Feb. 5: Physics run starts. • New systems this year: • 9MHz cavity • Beam dump upgrade (aperture smaller!) • Upgraded spin flipper • A robust tune/orbit/chromaticity feedback system • Reversed BPM offsets • Realigned RHIC ring vertically except section between 6-7.

More Related