Message: The default energy unit in the point-wise energy spectrum Not Logged In (login)
 Next-in-Thread Next-in-Thread
 Next-in-Forum Next-in-Forum

Question The default energy unit in the point-wise energy spectrum 

Forum: Particles
Date: 01 Sep, 2016
From: Hubert Hu <Hubert Hu>

Hi,

I'm running into a strange trouble about the default energy unit in my GPS macro. I understand from the guide 2.7 that the default unit is MeV for the arbitrary list. But after I run the macro, the generated particle is in GeV. I run out of idea where it goes wrong. Any help is very welcome.

Hubert

The troubled macro is here:

#
#Source definition

/gps/particle proton

# source /gps/pos/type Surface /gps/pos/shape Sphere /gps/pos/centre 0. 0. 0. cm /gps/pos/radius 1 cm

# /gps/pos/confine Sphere_phys
# confine to physical volume "Sphere_phys"

# angular distribution /gps/ang/type focused /gps/ang/focuspoint 0 0 0 cm

/gps/ene/type Arb /gps/hist/type arb

#For first hist point, the first value is treated as the lower edge of the first bin, and the second value is not used.
#so make a artificial first line.
#From second hist ponit, the first value is treated as the upper edge of the bin, the second value is the weight. 
#For energy, by default, the first value unit is MeV
# 01/09/2016 update the histogram according to the new simulation results for trapped electron flux.
/gps/hist/point 0 0 /gps/hist/point 1.000000E-01 1.617300E+04 /gps/hist/point 1.500000E-01 1.165900E+04 /gps/hist/point 2.000000E-01 7.918900E+03 /gps/hist/point 3.000000E-01 3.835600E+03 /gps/hist/point 4.000000E-01 2.028000E+03 /gps/hist/point 5.000000E-01 1.100900E+03 /gps/hist/point 6.000000E-01 6.701000E+02 /gps/hist/point 7.000000E-01 4.194600E+02 /gps/hist/point 1.000000E+00 1.839400E+02 /gps/hist/point 1.500000E+00 5.576300E+01 /gps/hist/point 2.000000E+00 2.778600E+01 /gps/hist/point 3.000000E+00 1.003400E+01 /gps/hist/point 4.000000E+00 5.647100E+00 /gps/hist/point 5.000000E+00 3.531100E+00 /gps/hist/point 6.000000E+00 2.831400E+00 /gps/hist/point 7.000000E+00 2.344100E+00 /gps/hist/point 1.000000E+01 1.421800E+00 /gps/hist/point 1.500000E+01 8.101100E-01 /gps/hist/point 2.000000E+01 6.406800E-01 /gps/hist/point 3.000000E+01 4.049300E-01 /gps/hist/point 4.000000E+01 3.522600E-01 /gps/hist/point 5.000000E+01 3.164600E-01 /gps/hist/point 6.000000E+01 2.971100E-01 /gps/hist/point 7.000000E+01 2.810700E-01 /gps/hist/point 1.000000E+02 2.191200E-01 /gps/hist/point 1.500000E+02 1.396200E-01 /gps/hist/point 2.000000E+02 8.523700E-02 /gps/hist/point 3.000000E+02 3.445900E-02 /gps/hist/point 4.000000E+02 1.147300E-03 /gps/hist/inter Log
#/gps/ang/type cos
#/gps/ang/mintheta    0.000E+00 deg
#/gps/ang/maxtheta    9.000E+01 deg
/gps/source/list

#
#Normalisation
#
/control/alias NORM_FACTOR_SPECTRUM " 2.289311E+11 " /control/alias NORM_FACTOR_ANGULAR " 2.500000E-01 "

## this is very important to stop the GUI program from crash /run/printProgress 10000

/run/beamOn 1000

Inline Depth:
 1 1
 All All
Outline Depth:
 1 1
 2 2
 All All
Add message: (add)

1 Note: Re: The default energy unit in the point-wise energy spectrum   (Hubert Hu - 01 Sep, 2016)
1 Note: Re: The default energy unit in the point-wise energy spectrum   (Hubert Hu - 04 Sep, 2016)
2 Question: Re: The default energy unit in the point-wise energy spectrum   (Giulia Tamborino - 26 Sep, 2018)
 Add Message Add Message
to: "The default energy unit in the point-wise energy spectrum"

 Subscribe Subscribe

This site runs SLAC HyperNews version 1.11-slac-98, derived from the original HyperNews


[ Geant 4 Home | Geant 4 HyperNews | Search | Request New Forum | Feedback ]