This project is to simulate the expected flux of synchrotron radition (x-ray photons) and the energy deposited in a silicon strip sensor instrumented on the Low Energy Ring (LER) and the High Energy Ring (HER) at SuperKEKB.

The "exampleB1" code is modified from the example project of the same name that comes with geant4.

helpful notes:

to build and install geant4: https://github.com/mzandrew/bin/blob/master/physics/make_geant4_and_visualization_friends.sh

to build a geant4 executable:

. /usr/local/share/Geant4/geant4make/geant4make.sh
mkdir build; cd build; cmake ..; make

to rebuild a geant4 executable after a source change: (to run with a new .mac file, copy the changed mac file into the build dir first)

cd build; make

to run a geant4 executable (from build/ subdir):

. /usr/local/bin/geant4.sh
cd build; ./edge_on

to run 100 events in the visualization:

/run/beamOn 100

to run a pyroot program:

. ${HOME}/build/root/bin/thisroot.sh
./spectra.py blah.png inputfile1 inputfile2

preliminary results:

edge-on monochromatic 11 keV / 18 keV:

mza@ubuntu18-04:~/build/XRM/build$ cp ../*.mac .; ./exampleB1 HER-N-bunches.mac > HER.log ; ./exampleB1 LER-N-bunches.mac > LER.log; grep -c deposited *.log
HER.log:70
LER.log:133

face-on monochromatic 11 keV / 18 keV:

mza@ubuntu18-04:~/build/XRM/build$ cp ../*.mac .; ./exampleB1 HER-N-bunches.mac > HER.log ; ./exampleB1 LER-N-bunches.mac > LER.log; grep -c deposited *.log
HER.log:389
LER.log:228

bulk_si: bulk silicon cube in beampipe including SR spectrum (InvSynFracInt) with critial energy 7.18 keV / 4.458 keV

edge_on: including SR spectrum (InvSynFracInt) with critial energy 7.18 keV / 4.458 keV

face_on: including SR spectrum (InvSynFracInt) with critial energy 7.18 keV / 4.458 keV

mza@ubuntu18-04:~/build/XRM$ time ./go.sh 
-- Configuring done
-- Generating done
-- Build files have been written to: /home/mza/build/XRM/build
[ 16%] Built target edge_on_HER
[ 33%] Built target bulk_si_HER
[ 50%] Built target face_on_HER
[ 66%] Built target bulk_si_LER
[ 83%] Built target edge_on_LER
[100%] Built target face_on_LER
./bulk_si_HER HER-N-bunches.mac > HER-bulk_si.log
./edge_on_HER HER-N-bunches.mac > HER-edge_on.log
./face_on_HER HER-N-bunches.mac > HER-face_on.log
read 2671699 lines from file HER-bulk_si
total_energy_incident 6524.29642445 MeV per bunch
total_energy_deposited 6499.16526734 MeV per bunch
total_energy_incident 1.04530798255e-09 J per bunch
total_energy_deposited 1.04128152552e-09 J per bunch
total_power_incident 0.531944165967 W
total_power_deposited 0.529895152321 W
read 2802602 lines from file HER-edge_on
total_energy_incident 1504.79012802 MeV per bunch
total_energy_deposited 1390.30807343 MeV per bunch
total_energy_incident 2.41094062952e-10 J per bunch
total_energy_deposited 2.22752007697e-10 J per bunch
total_power_incident 0.122689754961 W
total_power_deposited 0.113355712317 W
read 2867576 lines from file HER-face_on
total_energy_incident 567.97320967 MeV per bunch
total_energy_deposited 562.791373454 MeV per bunch
total_energy_incident 9.09993800581e-11 J per bunch
total_energy_deposited 9.01691580067e-11 J per bunch
total_power_incident 0.0463084470193 W
total_power_deposited 0.0458859573951 W
generated XRM.HER.png
./bulk_si_LER LER-N-bunches.mac > LER-bulk_si.log
./edge_on_LER LER-N-bunches.mac > LER-edge_on.log
./face_on_LER LER-N-bunches.mac > LER-face_on.log
read 2619147 lines from file LER-bulk_si
total_energy_incident 4104.33136828 MeV per bunch
total_energy_deposited 4099.48835191 MeV per bunch
total_energy_incident 6.57586667307e-10 J per bunch
total_energy_deposited 6.56810730204e-10 J per bunch
total_power_incident 0.334637635159 W
total_power_deposited 0.334242770466 W
read 2711466 lines from file LER-edge_on
total_energy_incident 798.21338691 MeV per bunch
total_energy_deposited 770.447401231 MeV per bunch
total_energy_incident 1.27887939301e-10 J per bunch
total_energy_deposited 1.23439336021e-10 J per bunch
total_power_incident 0.065080573711 W
total_power_deposited 0.0628167351093 W
read 2775469 lines from file LER-face_on
total_energy_incident 455.24275851 MeV per bunch
total_energy_deposited 453.445355438 MeV per bunch
total_energy_incident 7.29379627331e-11 J per bunch
total_energy_deposited 7.26499868877e-11 J per bunch
total_power_incident 0.0371172175104 W
total_power_deposited 0.0369706702023 W
generated XRM.LER.png