10/1/031 Jeremy McCormick, Vishnu Zutshi Project Description Command Interface Data Format Geometry Visualization Plans Test Beam Simulator

10/1/032 Project Description Started 8/6 by JM CVS: tbeam Homepage: Geant4 Other libs: g4phys, popt Geometry of DESY Test Beam Prototype

10/1/033 Simulation Run pion & electron edep 1000 event batches E = 2, 5, 10, 15, 20, 30, 50 GeV Randomized firing pattern constrained to box region Eventually include multi-particle events (ex. : 2+ electrons)

10/1/034 Classes Cellulizer BoxCellulizer GeometryMap MaterialMap PhysVolInfo TBEventAction TBPrimaryGeneratorAction TBRunAction TBSteppingAction TBVisManager TBCal TBTailCatcher TBECal TBHCal TBCellHit TBDetectorConstruction TBSensitiveDetector Geometry & HitsGeneral G4 User

10/1/035 Command Interface Command-line Options: -u: print usage -c: show all cells -t: visualize tracks -h: visualize hits -o outfile_path : hits output filepath -m macro_file : macro_file -v : visualization on startup -r rand_max : max rand val All Options Example: testbeam -vhtc -o outfile_txt -m run.mac -r 40

10/1/036 Text Output Format EVENT evt_no ECAL no_hits layer_no … x y z cell_edep abs_edep … HCAL … … TAILCATCHER … …

10/1/037 Geometry Overview Component No. Layers * thickness = total thickness X x Y dim. (m) Materials HCal 50 * 2.5 cm = 125 cm 1 x 1 Stainless Steel, Polystyrene ECal 30 * 5 mm = 15 cm 1 x 1W, G10, Si, Cu, Air Tail Catcher 6 * 10.5 cm = 63 cm 1.5 x 1.5Same as HCal Total 203 cm max 1.5 x 1.5-

10/1/038 Whole Device EcalHCal TC ~2 m 1.5 m 1 m

10/1/039 ECal Front Side

10/1/0310 HCal Front Side (Angled)

10/1/0311 Tail Catcher Front (Hor) Front (Vert) Side Front (transparent)

10/1/0312 Cells ComponentLayersCells / Layer Total Cells HCal50100 inner outer = ,200 ECal3010,000300,000 Tail Catcher Total ,290

10/1/0313 Visualization Cell Hits Tracks Blue: + Red: - Green: N

10/1/ GeV Pion: Front View

10/1/0315 Tail Catcher Hits: Front View

10/1/ GeV Pion: Side View

10/1/ GeV e-: Side View

10/1/0318 Plans Geometry Multi-particle events Hits format to track particle contributions Visualization by layer Color-coding hits by edep Stepping through an event at a time Cuts (?) Cell effects (?)