Instructions for Hands On IV

1) Install Hadr01 & check it runs:

# Copy Hadr01 in your "mytest dir":

> cd mytestdir

> cp -R $G4INSTALL/examples/extended/hadronic/Hadr01/ .

> cd Hadr01/

> gmake

# check it works:

> $G4WORKDIR/bin/Linux-g++/hadr01

PreInit> /control/execute vis.mac

Idle> /run/beamOn 10

2) List existing "reference physics lists":

# find command to list physics list:

Idle> help

10

20

0

# list physics list:

Idle> /testhadr/ListPhysics

# exit

Idle> exit

3) Check physics:

3.1) Do the following:

# Examine vis.mac:

# does more than simple visualisation setup ;-)

# From line 22 of vis.mac, change to:

/testhadr/TargetMat G4_Pb <----

/testhadr/TargetRadius 20 cm <----

/testhadr/TargetLength 20 cm <----

/testhadr/NumberDivZ 100

/testhadr/DrawTracks all

/testhadr/CutsAll 1 mm

/testhadr/Physics LHEP <----

#

/run/initialize

/gun/particle neutron <----

/gun/energy 10 MeV <----

# execute 10 events with this setup

3.2) and then...

#Change to physics list QBBC_HP and run 10 events

# comments ?

3.3) Repeat the same for energy 1 keV

# comments ?

4) Please examine PhysicsList.cc

and PhysicsListMessenger.cc

6) Histograms

# launch application and:

- select your favorite histo system (hbook, root, aida)

- set the histogram file name

# run couple of events (100)

# exit and look at the output

# note:

- by curiosity, you may have a look at Histo.cc to see how the various

- histogram systems are implemented

7) try electrons (10 GeV) :-)