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BE-BI-PM Section


Source and LEBT

The L4 source and Low Energy Beam Transfer (LEBT) consist in all elements preceding the RFQ, at the entrance of which the H- beam is at 45 KeV. The source and LEBT will be installed and commissioned in the laboratory and then moved and re-commissioned in the L4 tunnel. From R. Scrivens's EDMS docs the layout at different stages is the following:



1-Emittance measurements just after the source


Source Emittance Meter

H- Energy45 KeV
SEM Grid
PlaneHOR+VER
MovementStepping Motor
# of Wires40 (48 ADC channels)
Wire diameter 
Wire distance0.75 mm
DrawingsCCD Folder
Assembly (pdf)
SLIT
DrawingsCCD Folder
Assembly (pdf)


2-Measurements in the source spectrometer line


SEM grid LEBT spectrometer line

InstallationDecember 2010
H- Energy45 KeV
PlaneHOR+VER (sandwich)
MovementIN-OUT
# of Wires24 (Tungsten)
Wire diameter40 um
Wire distance7 Central gaps: 1 mm
Next 4+4 gaps : 3 mm
Last 4+4 gaps : 5 mm
DrawingsCCD Folder
Assembly (pdf)
Polarization3 polarization wire frames (before, between H and V, after)

3-Linac 4 Operation

"FULL SIZE


SEM grid LEBT

InstallationDecember 2010
H- Energy45 KeV
PlaneHOR
MovementIN-OUT
# of Wires24
Wire diameter 
Wire distance7 Central gaps: 1 mm
Next 4+4 gaps : 3 mm
Last 4+4 gaps : 5 mm
DrawingsCCD Folder
Assembly (pdf)


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Page last modified on April 19, 2010, at 04:55 PM EST