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ESTB Test Beam Upgrades Hadrons Shorter bunch length

ESTB Test Beam Upgrades Hadrons Shorter bunch length. Carsten Hast March 17 th 2011. Beam Properties at Detector Plane.  x =1mm.  y =1.4mm. E/E=1.3%. Secondary Hadron Beam Properties. Divide by 4 for 250 pC. ESTB Stage II: Hadron Production.

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ESTB Test Beam Upgrades Hadrons Shorter bunch length

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  1. ESTB Test Beam UpgradesHadronsShorter bunch length Carsten HastMarch 17th 2011

  2. Beam Properties at Detector Plane x=1mm y=1.4mm E/E=1.3% Secondary Hadron Beam Properties C.Hast, ESTB Workshop SLAC, March 2011 Divide by 4 for 250 pC

  3. ESTB Stage II: Hadron Production • Add Be target, beam dump, analyzing magnet, momentum slit, and quadrupole doublets to produce a secondary hadron beam • Production angle = 1.35O and Acceptance = 10 sr C.Hast, ESTB Workshop SLAC, March 2011

  4. ESTB Stage II: Components • Move Collimator (BSY) • Design, build and install Be-target (BSY) • Design, build and install insertable dump / collimator (BSY) • Retrieve and install bend magnet (for momentum selection) (ESA) • Retrieve and install 4 quadrupoles (BSY/ESA) • Design, build and install collimator (ESA) • Additional vacuum system (ESA) • Many any other odds and ends Serious effort! Needs to be driven by user demand! C.Hast, ESTB Workshop SLAC, March 2011

  5. Shorter Bunch Length for ESTB • Interest for shorter bunches (CLIC, accelerator R&D, etc) • LCLS ultra-short bunch length: 10 mm and shorter • In A-line, bunch length increases to 280 mm due to strong bends (24o) and large (optics) R56 • With existing optics: 20-30 mm bunch length ispossible if one manages to reduce R56 by a factor 3-4 and keep sE=0.02% Lew, Ted and Jury are looking into that • Possible to preserve short bunches in ESA with adequate $ support by interested parties … C.Hast, ESTB Workshop SLAC, March 2011

  6. Summary • Production of Hadrons is possible for late 2012 if • Demanded by users • Funding is made available • Short bunch length might be possible • Currently under study • Funding needs to be found Production of Hadrons would add desirable capabilities to ESTB C.Hast, ESTB Workshop SLAC, March 2011 6

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