1 / 7

Summer ‘09 SAD

Summer ‘09 SAD. Same good photocathode PREP and LOAD chambers. Spin Flipper: Stage 1 Remove unbaked girder region between valve & chopper Install new “normal” Wien for Physics program, with quad correction Thoroughly test & transfer functionality for setting pol.

more
Download Presentation

Summer ‘09 SAD

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. Summer ‘09 SAD Same good photocathode PREP and LOAD chambers • Spin Flipper: Stage 1 • Remove unbaked girder region between valve & chopper • Install new “normal” Wien for Physics program, with quad correction • Thoroughly test & transfer functionality for setting pol. • No need to move laser room. Install “Inverted” HV chamber with capabilities for higher voltage, anticipating better transmission & photocathode lifetime Preserve baked region, continue R&D/BS during Fall H-Wien + Quads Harp/MFA0I03 “match point”

  2. Gun Status • Present Ceramic • Exposed to field emission • Large area • Expensive (~$50k) Medical x-ray technology e- • New Ceramic • Compact • ~$5k neg modules New design Want to move away from “conventional” insulator used on allGaAsphotoguns today – expensive, months to build, prone to damage from field emission.

  3. Mechanical Layout

  4. Optical Layout (Wien=0)

  5. Optical Layout (Wien=90, Quads=OFF)

  6. Optical Layout (Wien=90, Quads=ON)

  7. Optical Layout (Wien=90, Quads=ON) Max. B’L ~23 G Will use QS (B’L ~ 13G/Amp) 200keV increase is 50% (OK)

More Related