PEPPo Weekly Status MeetingFebruary 16, 2011

&

6MSD Planning MeetingFebruary 23, 2011

Part 1 – Technical summary of layoutPart 2 – Month-by-Month Installation LogicPart 3 – System-by-System Labor Estimate

Joe Grames(v3.0 – 2/16/11)

PEPPo Experiment Layout = Composed of 4 regions

Region 1 - e- beam to target

Region 2 - e+ spectrometer

Region 3 - diagnostic line

Region 4 - Compton polarimeter

Part 1 – Technical summary of layout

Region 1 - e- beam to target

5-port vacuum chamber• design in process• machine shop fabricate

Dipole magnet (not captured)• use (pre)existing• magnetic measurement

Vacuum valve• valve + control channel + software

BPM’s (2)• fabricate can + weld antennae• cables + electronics + software

Steering Coils (4)• Haimson H/V – on-hand• Trim 1 Amp (4) + cables + software

Cross #1 (Diagnostic)• viewer + viewer channel + camera + video channel + cables• Ion pump + HV supply + cable

Cross #2 (Target)• Target ladder + motion + cable• Video channel + cable• Ion pump + HV supply + cable

Girder• layout• fabricate girder channel + pedestals

Alignment of elements on girder upstairsAlignment of dipole + girder in tunnel

Region 2 – e+ spectrometer

Rear Front

Positron Spectrometer• Solenoid (1) + Dipole Pair (1)• MOU w/ Princeton signed February, ship from SLAC March• Each magnet requires cooling + power supply + cables• Magnetic measurement• Vacuum chamber supplied by SLAC• Design + fab support table for magnets• Alignment of magnets to table upstairs• Alignment of table in tunnel

Region 3 – diagnostic line

Cross #1• Viewer + viewer channel + camera + video channel + cable• Ion pump + HV supply + cable

Solenoid on nipple• Spare INJTWF magnet (on-site)• Add original cooling circuit• Fab two end plates w/ larger ID• Magnet cooling• Power supply• Magnet measurement

Cross #2• Target ladder (tungsten foil + viewer) +

cable + software• Camera + video channel + cable• Ion pump + HV supply + cable• Thin vacuum windows

Annihilation Counter (not shown in drawing)• Idaho State University (due summer)• HV + signal cables + small lead shield

P1 silicon Detector (not shown in drawing)• Collaborator TBD• Air-side diagnostic (4 cables)

Table or small girder

Alignment of elements on girder upstairsAlignment of girder in tunnel?

Region 4 – Compton polarimeter

Analyzing Magnet + Tungsten Target• Loaned from DESY (in EEL lab)• LCW magnet cooling• Power Supply• magnet measurement• Align magnet to support table

Array of 9 CsI crystals (DESY) + PMT’s (LPSC)• Assembled at LPSC, ship to JLAB in April• PMT cable pull (HV + signal)• Support table (completed)• Crane table to injector

Lead shielding• 250 lead bricks (10,000 lb)• At JLAB (ISB) => crane to tunnel

Month Region 1 Region 2 Region 3 Region 4

February(Design)

•Design evaluation •Ship spectrometer & vacuum chamber from SLAC to JLAB

•Design evaluation •Assembly at LPSC

March(Design/Fab)

•Complete design•Start fab/acquire hardware

•Receive hardware & QA. •Design evaluation

•Start MFG mod •Complete design•Test PMT’s, fab patch•Analyzer magnet mapping

April(Design/Fab)

•End fab/acquire hardware •Map spectrometer•Complete design

•Complete design•Start fab/acquire hardware•End MFG mod

•Complete full assembly and test

May(Fab)

•Assemble beam line•Pre-align•Map 5MeV dipole

• Start table fab & vac chamber mods

•Map MFG•End fab/acquire hardware

•Ship polarimeter from LPSC to JLAB•Lead bricks to tunnel

June(Fab)

•Install 5-way port at INJ•Install 5MeV dipole at INJ

•End table fab & vac chamber mods•Assemble spectrometer•Pre-align

•Assemble beam line•Pre-align

•QA polarimeter at JLAB•DAQ integration testing

July(Fab/Install)

•Move girder to INJ•Install + vacuum connect•Align

•Move spectrometer to INJ•Install + vacuum connect•Align

•Move diagnostic line to INJ•Install + vacuum connect•Align

•Move polarimeter INJ•Install + vacuum connect•Align

August(Install)

•Cabling + connections •Cabling + connections •Cabling + Connection •Cabling + connections

September(Float)

• Float •Float •Float •Float

October(Commission)

•Ready to commission •Ready to commission •Ready to commission •Ready to commission

Part 2 – Month-by-Month Installation Logic

Designer – continued level of support through August (total 12 pw)• minor evolution of layout, design/integration of beam line components, provide drawings for shop, specs for

materials, help QA assembly and installation

Machine shop – fabricate and/or modify about dozen parts, mainly vacuum + some magnet• 5-port vacuum chamber, BPM cans, few nipples, thin vacuum window, any mods to spectrometer vacuum

chamber, add cooling circuit to solenoid, fabricate solenoid return yoke

Magnetic measurement –Map 5 magnets from March to May (typ. 1-2 days/magnet => 5-10 days)• 2 focusing solenoids + 1 spectrometer + 1 target solenoid + 5MeV dipole

Installation – a handful of ½ days to move equipment & installation at INJ• Move 4 girders + 2 pallets of lead to INJ• Penetration open for cable pull

Alignment – 1 week of integrated alignment April-June and handful of days July-August for installation• Pre-align components to support girder/table for regions 1-3 in survey lab• Final alignment of support fixtures for regions 1-4 at injector

EES-DC & EES-IC – assuming each element is a person-week, I estimate 20 person-weeks• (4) 1 Amp trims for steering coils• (4) Bulk supplies for big magnets• (1) Valve, (2) Viewers, (4) video, (2) target ladder• Cable pulls

Software – assuming one person is always doing something July-August, I estimated 8 person weeks• Integration of about 25 different standard hardware elements (magnet, valve, viewer, BPM, video, ladder)• Modest support via ACE for DAQ

Part 3 – System-by-System Labor Estimate