## Re: "bad" energy losses of pions

Forum: Physics List
Re: "bad" energy losses of pions
Date: 09 Nov, 2004
From: michel maire <michel maire>

 ` After adding the Plastic in DetectorConstruction, I ran extended/electromagnetic/TestEm5 with the following macro :` ``` # \$Id: dedx2.mac,v 1.2 2004/08/02 11:30:05 maire Exp \$ # # macro file for TestEm5.cc # # to control dE/dx calculation # /control/verbose 2 /run/verbose 2 # /testem/det/setAbsMat Plastic /testem/det/setAbsThick 11 cm /testem/det/setAbsYZ 11 cm # /testem/phys/addPhysics standard /testem/phys/setCuts 1 km # /run/initialize # /testem/gun/setDefault /gun/particle pi+ /gun/energy 300 MeV # /testem/histo/setFileName msu2.paw /testem/histo/setHisto 1 100 0. 100. MeV #energy in absorber # /run/beamOn 10000``` ` I attach the output :` ``` Run Summary Number of events processed : 10000 User=0.07s Real=3.03s Sys=2.94s``` ` ======================== run summary ======================` ` The run was 10000 pi+ of 3e+02 MeV through 11 cm of Plastic (density: 1 g/cm3 )` ` Total energy deposit in absorber per event = 22.59 MeV +- 25.69 keV` ``` Mean dE/dx = 2.053 MeV/cm stopping Power = 1.974 MeV*cm2/g (from Table = 2.062 MeV/cm) (from Table = 1.983 MeV*cm2/g)``` ``` Total track length (charged) in absorber per event = 11 cm +- 181.1 nm Total track length (neutral) in absorber per event = 418.6 mum +- 59.59 mum``` ``` Number of steps (charged) in absorber per event = 1.005 +- 0.0001346 Number of steps (neutral) in absorber per event = 0.0063 +- 0.0001346``` ` Number of secondaries per event : Gammas = 0; electrons = 0; positrons = 0` ``` Number of events with the primary particle transmitted = 99.29 % Number of events with at least 1 particle transmitted (same charge as primary) = 100 %``` ``` Number of events with the primary particle reflected = 0 % Number of events with at least 1 particle reflected (same charge as primary) = 0 %``` ` ----> Histogram Tree is saved in msu2.paw` ` I will send you dirctly the histogram.`

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1 Re: "bad" energy losses of pions   (Peter - 10 Nov, 2004)
 to: "Re: "bad" energy losses of pions"
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