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Synchrotron Radiation Effects in the IR Solenoid Flux Excluder.

DE2004826902

Publication Date	2004
Personal Author	Tenenbaum, P.
Page Count	16
Abstract	We examine the emittance dilution due to synchrotron radiation in the fringing fields at the end of the flux excluder solenoid which protects the final doublet quadrupoles from the main detector solenoid field, and also the effect of SR in the main solenoid field itself. Because the detection due to the excluder fringe field is opposite in polarity from that of the main solenoid, the resulting dispersive rays cancel at the IP; as a result the synchrotron radiation from the two magnetic fields produces only a small dilution of the vertical spot size. The contribution to the spot size from the finite opening angle of the synchrotron flux is found to be comparable to the contribution from solenoidal dispersion, and both are acceptable.
Keywords	Synchrotron radiation Solenoids Dilution Magnetic fields Flux Openings Quadrupoles Synchrotrons Beam emittance
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Stanford Linear Accelerator Center, CA.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200508

Synchrotron Radiation Effects in the IR Solenoid Flux Excluder.

Synchrotron Radiation Effects in the IR Solenoid Flux Excluder.
DE2004826902

Publication Date	2004
Personal Author	Tenenbaum, P.
Page Count	16
Abstract	We examine the emittance dilution due to synchrotron radiation in the fringing fields at the end of the flux excluder solenoid which protects the final doublet quadrupoles from the main detector solenoid field, and also the effect of SR in the main solenoid field itself. Because the detection due to the excluder fringe field is opposite in polarity from that of the main solenoid, the resulting dispersive rays cancel at the IP; as a result the synchrotron radiation from the two magnetic fields produces only a small dilution of the vertical spot size. The contribution to the spot size from the finite opening angle of the synchrotron flux is found to be comparable to the contribution from solenoidal dispersion, and both are acceptable.
Keywords	Synchrotron radiation Solenoids Dilution Magnetic fields Flux Openings Quadrupoles Synchrotrons Beam emittance
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Stanford Linear Accelerator Center, CA.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200508