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Planar Undulator Considerations.

DE2004826499

Publication Date	2002
Personal Author	Sheppard, J. C.
Page Count	14
Abstract	This note consists of informal working notes that document an effort to understand the TESLA baseline, unpolarized, undulator based positron source. This is the first step in the design process of an undulator based positron system for the NLC. The expressions and methodologies developed herein are used in subsequent memos that reference this note. In regards to the TESLA design, it is found that a 135 m long (versus 100 m length) undulator is consistent with the performance descriptions in the TDR text. And while operation of the TESLA system with a 250 GeV drive beam energy provides a safety margin of a factor of 2 in e+ yield, operation of the same system at 160 GeV results in a yield of about 0.6.
Keywords	Wiggler magnets Positron sources Electron beams Design Methodology Linear colliders Performance Photons Undulators
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	200510

Planar Undulator Considerations.

Planar Undulator Considerations.
DE2004826499

Publication Date	2002
Personal Author	Sheppard, J. C.
Page Count	14
Abstract	This note consists of informal working notes that document an effort to understand the TESLA baseline, unpolarized, undulator based positron source. This is the first step in the design process of an undulator based positron system for the NLC. The expressions and methodologies developed herein are used in subsequent memos that reference this note. In regards to the TESLA design, it is found that a 135 m long (versus 100 m length) undulator is consistent with the performance descriptions in the TDR text. And while operation of the TESLA system with a 250 GeV drive beam energy provides a safety margin of a factor of 2 in e+ yield, operation of the same system at 160 GeV results in a yield of about 0.6.
Keywords	Wiggler magnets Positron sources Electron beams Design Methodology Linear colliders Performance Photons Undulators
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	200510