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

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

SAMPLER 1

OPEN AIRCOMPRESSOR

PLASMA CHAMBER

EXPANDED

INJECTION CHAMBER

New Features for IP Area

SAMPLER 2

e +/-

Hydrogen Plasma Chamber

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

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

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

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

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--