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Modifications to FACET Laser Transport in IP Area for 2014-
2015 Run
Main features:
• Sampled low-intensity beam with independent
compressor for diagnostics, etc.
• Larger injection chamber to accommodate a wider
variety of equipment/experiments
• Replacement of oven/bypass line with long
hydrogen chamber
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H Chamber
CURRENT CONFIGURATION
NEW CONFIGURATION• Breadboard table
extensions• Transport vacuum
terminated at B4• Sampler periscopes on
either side of table• Thin-shell enclosure
across table• Open air compressors
on table• Large Injection Chamber• Either Long Oven or Gas
Chamber
B4
B5, B6
Comp-ressor
breadboard
laser work space
Injection Chamber
small-comp 1
small-comp 2
lens, sampler 1
sampler 2
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SAMPLER 1
OPEN AIRCOMPRESSOR
PLASMA CHAMBER
EXPANDED
INJECTION CHAMBER
New Features for IP Area
SAMPLER 2
e +/-
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Hydrogen Plasma Chamber
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e-
e-
high power laser
high power laser
axicon
final folding mirror
EOetc.
low power laser
E200 Config:Pre-ionized plasmaNotch-Coll. witness
NOTE: low power laser can arrive at e-beam up to ~5.5 ns ahead of high power laser
axicon
final folding mirror
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high power laser
high power laser
axicon
final folding mirror
EOetc.
gas jet
e-
e-
low power laser
E217 Config:Pre-ionized plasmaGas jet witness
axicon
final folding mirror
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high power laser
high power laser
axicon
final folding mirror
EOetc. OAP
e-
e-
low power laser
E210 Config:Pre-ionized plasmaTrojan Horse witness
axicon
final folding mirror
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high power laser
high power laser
axicon
final folding mirror
PMQs
EOetc.
e-
e-
low power laser
E200(?) Config 2:Pre-ionized plasmaPhoto-injected witness
axicon
final folding mirror
10” to waist
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Rough Schedule
• Transport modification (samplers) mid. Oct.• Open air compressor end of Oct.• Electro-optic setup beginning of Nov.• Plasma imaging setup mid. Nov.
--Experiments in this state until end of Dec.--
• Injection chamber install Jan.• Hydrogen plasma chamber install Jan.• Swap in/out equipment in injection chamber as
needed (gas jet, OAP, etc.) Feb.—July
--Experiments in this state until end of run--