National Technical Reports Library

The National Technical Information Service acquires, indexes, abstracts, and archives the largest collection of U.S. government-sponsored technical reports in existence. The NTRL offers online, free and open access to these authenticated government technical reports. Technical reports and documents in its repository may be available online for free either from the issuing federal agency, the U.S. Government Publishing Office’s Federal Digital System website, or through search engines.

Details

LCLS LLRF Upgrades to the SLAC LINAC.

DE2007917259

Publication Date	2007
Personal Author	Akre, R.; Dowell, D.; Emma, P.; Frisch, J.; Hong, B.
Page Count	4
Abstract	The Linac Coherent Light Source (LCLS) at SLAC will be the brightest X-ray laser in the world when it comes on line. In order to achieve the brightness a 200fS length electron bunch is passed through an undulator. To create the 200fS, 3kA bunch, a 10pS electron bunch, created from a photo cathode in an RF gun, is run off crest on the RF to set up a position to energy correlation. The bunch is then compressed by chicanes. The stability of the RF system is critical in setting up the position to energy correlation. Specifications derived from simulations require the RF system to be stable to below 200fS in several critical injector stations and the last kilometer of linac. The SLAC linac RF system is being upgraded to meet these requirements.
Keywords	Light sources X-ray lasers Linear accelerators RF systems Beam bunching Electron beams
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Stanford Linear Accelerator Center, CA.; Department of Energy, Washington, DC.; Lawrence Berkeley National Lab., CA.
Supplemental Notes	Prepared in cooperation with Lawrence Berkeley National Lab., CA. Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200806
Contract Number	DE-AC02-76SF00515

LCLS LLRF Upgrades to the SLAC LINAC.

LCLS LLRF Upgrades to the SLAC LINAC.
DE2007917259

Publication Date	2007
Personal Author	Akre, R.; Dowell, D.; Emma, P.; Frisch, J.; Hong, B.
Page Count	4
Abstract	The Linac Coherent Light Source (LCLS) at SLAC will be the brightest X-ray laser in the world when it comes on line. In order to achieve the brightness a 200fS length electron bunch is passed through an undulator. To create the 200fS, 3kA bunch, a 10pS electron bunch, created from a photo cathode in an RF gun, is run off crest on the RF to set up a position to energy correlation. The bunch is then compressed by chicanes. The stability of the RF system is critical in setting up the position to energy correlation. Specifications derived from simulations require the RF system to be stable to below 200fS in several critical injector stations and the last kilometer of linac. The SLAC linac RF system is being upgraded to meet these requirements.
Keywords	Light sources X-ray lasers Linear accelerators RF systems Beam bunching Electron beams
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Stanford Linear Accelerator Center, CA.; Department of Energy, Washington, DC.; Lawrence Berkeley National Lab., CA.
Supplemental Notes	Prepared in cooperation with Lawrence Berkeley National Lab., CA. Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200806
Contract Number	DE-AC02-76SF00515