دانلود یک نمونه کامل برنامه MCNP
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Proton pencil beam simulation in water $optional title card
C
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C CELL CARDS
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C
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C CELL CARDS
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1 1 -1 -1 IMP:P=1 $cell num, material num, density, surface no, relative cell importance
3 0 -99 1 IMP:P=1 $ $bounding box for problem - cell 3 - void
99 0 99 IMP:P=0 $ void outside bounding box
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3 0 -99 1 IMP:P=1 $ $bounding box for problem - cell 3 - void
99 0 99 IMP:P=0 $ void outside bounding box
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C SURFACE CARDS
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1 RPP 0 30 -8 8 -8 8 $RPP-rectangular parallel piped, RPP Xmin Xmax Ymin Ymax Zmin Zmax
99 RPP -15 45 -16 16 -16 16
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99 RPP -15 45 -16 16 -16 16
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C DATA CARDS
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C ------ MATERIAL CARDS ------
M1 1001 2 8016 1 $ 1001-hydrogen, 2 atomic fraction, 8016-oxygen
C
C
C --------MODE CARD-----
MODE H E P $ specifies what particles might be created and tracked
CUT:H J 1 $ cut off value for proton
CUT:E J 1 $ cut off value for electron
CUT:P J 1 $ cut off value for photon
PHYS:H 400 0 -1 J 0 J 0 $ proton physics format
C
C ------- SOURCE DEFINITION------
SDEF X=-5 AXS=1 0 0 EXT=0 Y=d1 Z=d2 DIR=1 VEC=1 0 0 PAR=H ERG=200 $SDEF source definition
SP1 -41 1.1774 0 $distribution uses FWHM = 2root(2*ln2) of sigma.SP1-source probability,-41
is for Gaussian. distribution uses 0.70645 width of FWHM, 0 is the mean,
FWHM = 2root(2*ln2) of sigma, X-x coordinate of position, AXS-reference
vector, refer Table 5.5.1 in manual
SP2 -41 1.1774 0 $distribution uses FWHM = 2root(2*ln2) of sigma
C
C ------MESH TALLY CARDS-------
TMESH $TMESH- Energy Deposition Mesh Tally
RMESH3 $RMESH is a Rectangular mesh
CORA3 0 80i 20 $planes perpendicular to the x-axis
CORB3 -8 64i 8
CORC3 -8 64i 8
ENDMD $end mesh tally
C
C --------NUMBER OF PARTICLE HISTORIES TO RUN----
NPS 1000000 $num of particle histories
PRINT 10 110 170 $output print tables format PRINT x1,x2,..i.., xi-lists of table numbers
to be included in the output file. 10-source co-efficient and
distribution, 110-first 50 starting histories, 170-source distribution
frequency table, surface source
A sample
M1 1001 2 8016 1 $ 1001-hydrogen, 2 atomic fraction, 8016-oxygen
C
C
C --------MODE CARD-----
MODE H E P $ specifies what particles might be created and tracked
CUT:H J 1 $ cut off value for proton
CUT:E J 1 $ cut off value for electron
CUT:P J 1 $ cut off value for photon
PHYS:H 400 0 -1 J 0 J 0 $ proton physics format
C
C ------- SOURCE DEFINITION------
SDEF X=-5 AXS=1 0 0 EXT=0 Y=d1 Z=d2 DIR=1 VEC=1 0 0 PAR=H ERG=200 $SDEF source definition
SP1 -41 1.1774 0 $distribution uses FWHM = 2root(2*ln2) of sigma.SP1-source probability,-41
is for Gaussian. distribution uses 0.70645 width of FWHM, 0 is the mean,
FWHM = 2root(2*ln2) of sigma, X-x coordinate of position, AXS-reference
vector, refer Table 5.5.1 in manual
SP2 -41 1.1774 0 $distribution uses FWHM = 2root(2*ln2) of sigma
C
C ------MESH TALLY CARDS-------
TMESH $TMESH- Energy Deposition Mesh Tally
RMESH3 $RMESH is a Rectangular mesh
CORA3 0 80i 20 $planes perpendicular to the x-axis
CORB3 -8 64i 8
CORC3 -8 64i 8
ENDMD $end mesh tally
C
C --------NUMBER OF PARTICLE HISTORIES TO RUN----
NPS 1000000 $num of particle histories
PRINT 10 110 170 $output print tables format PRINT x1,x2,..i.., xi-lists of table numbers
to be included in the output file. 10-source co-efficient and
distribution, 110-first 50 starting histories, 170-source distribution
frequency table, surface source
A sample
