March running preparation Alexandre Camsonne Hall A meeting February 28 th 2014

Introduction Beam available in Hall A March 11 th (13 th ? ) 3 days of tune ~2 week of beam for commissionning Commission new beamline Recomission spectrometer

Hall A upgraded systems Mostly beamline – ARC (Doug) – Compton (Dave, Bob, Alexandre ) Dipole displacement change Electron detector vacuum can modified Putting back in place background scintillators and detector to check photon rates – Moller ( Sasha, Roman ) Upgraded quads

Hall A standard beamline Need recomissionning – BCM ( Luke / Bob) 1 MHz receiver to VtoF to scalers All cabled from receiver to scaler Test with generator – BPM / Raster (Luke / Bob ) Cables ready Setup ADC for readout

HRS for GMp Standard detector and additionnal FPP straw chamber New lead glass trigger Main GM P trigger S0 S2m Main electron DVCS trigger S0 Cerenkov Efficiency trigger done with VME V1495 logic module ( Bob) New filters for ADC Large effort from Bogdan and GMp collaboration ( Kalyan, Yang, Barack, Longwu)

Left HRS VDC

Left HRS scintillators Scintillators all working being calibrated

Left HRS scintillators Scintillators all working being calibrated

Left HRS Cerenkov

Left HRS straw chamber

Left HRS pion rejector ( Longwu)

Right HRS Installed a bit later being debugged Running on adaql1 computer Most channels working Noisy/missing channels investigated

Right arm VDC

Right HRS Scintillators

Right shower preshower

High Voltage (Bob) Lecroy crates Mainframe being fixed Use laptop or intel CPU to control the boards which run server and emulates crate control System in place in both HRS and beamline Compatible with Roman JAVA gui

EPICS A little bit more complicated with firewall Best way so far – Accelerator account and cryptokey – Login to acclogin.acc.jlab.org using cryptokey – Login hlal00 using your accelerator account – Execute menubar Console in counting house Dedicated account being investigated

Scripts ( Kalyan, Bob, Alexandre ) Checking running on new adaq1 computer Reenable Start/End run script, EPICS / scaler logging Will try to post to standard HALOG and new accelerator HALOG ( Luke )

Target Cells/Cell Blocks

Counting house Computer moved and network – Left HRS DAQ running on new adaq1 computer and old adaql2 – Right HRS running on adaql1 planning to setup adaq2 2 consoles installed Some phones installed

Prelimary Run plan from Luke

Documentation Started wiki page for run information GeV_March_2014_running GeV_March_2014_running Weekly meeting Mondays 10:30 A110 Meeting

Conclusion Beamline – Need BCM, BPM at start – Moller – Finalize cabling BCM, BPM, raster HRS – All detectors in place : Left HRS almost ready besides straw chamber Right HRS being debugged NMR being worked but can borrow one if needed, can set will hall probe at beginning Left HRS mostly read. Reasonable shape to take data, need more checks for bad channels and normalization for cross sections