2015 06 Visit to ATF2

Attending

• Jochem
• Laurie
• Stewart (remote)

Setup

• Installation Photos
• Detector Description
• Computers & Environment
• DAQ Hardware
• DAQ Software
• Parameters for screens, and geometry

Log Book

• 2015 06 14 Detectors
• 2015 06 15 Detector Location
• 2015 06 15 - 2015 06 18 Initial Simulations
• 2015 06 16 Detector DAQ Setup
• 2015 06 18 Shift plan
• 2015 06 18 Shift
• 2015 06 19 Initial Analysis

BDSIM Development (fixes and improvements)

• branched from develop v0.7-rc (release candidate)
• offsets
• histogram bug
• fix overlapping volumes
• cleaner bds acc. comp. base class
• sbend vacuum bug
• pybdsim/Root for root histo to matplotlib

TODO

• working ATF2 model for v.5.2
• detailed aperture list, more or less everything is 12 mm (radius)
• set strengths automatically from set file
• set offsets automatically from data file
• separate strength file
• access Sampler class in robdsim/pybdsim
• provide wrapper for plotting root histograms in matplotlib

• beampipethickness
• correct materials and geometry for OTR, YAG
• energy cut / particle cut for cherenkov detector ~ 1-2MeV
• add reference cavity as drift
• OTR screen info

• beampipe transition for elements with different apertures
• cbpms - Scad/STL model done, needs to be imported to BDSIM
• flanges (as drift)
• quad outermagnet geometry (coils): 2 versions: tokin (FF), EXT model? (EXT)
• tapered collimator
• plates before quads (as drifts)
• detector geometry, see ATF2BDSIMDetectors

• halo distribution
• beam gas distribution

ROOT Wizardry

Plot from tree with limits

sampler = (TTree*)f.Get("Sampler_L207B")
TH1F f2 = TH1F("f2","f2", 100,-10000,10000)
sampler->Draw("y>>f2")