7.4. [ T-Adjoint ] section

This is the tally used in adjoint mode, iadjoint=1, calculations. The results from this tally are equivalent to the results from a [T-Track] tally in the corresponding forward mode calculation. See Section 5.2.9 and the sample input file in /phits/utility/adjoint/ for more details on how to set up an adjoint simulation and how to set e-type, e-smin, e-smax, and factor in this tally.

Table 7.4.1 mesh

value	explanation
reg, r-z, xyz	Mesh type. A mesh type subsection is required below this option.

Table 7.4.2 material

value	explanation
(optional)	Specify materials for scoring.
all	all is the default, same as no definition.
number of materials	To set number of materials, define the material numbers in the next line. The number of materials can be set as a negative value, in which case the specified materials are not included for scoring.
(next line)	2 5 8 Material numbers.

Table 7.4.3 e-type

value	explanation
1, 2, 3, 4, 5	Energy mesh. See Section 6.6.1 for mesh subsection format.

Table 7.4.4 m-source

value	explanation
(D=1)	Specify the number of multi-sources defined in [source]. A maximum of 6 multi-sources is supported. Columns of results, flux and r.err, are written to the output file for each multi-source.

Table 7.4.5 e-smin

value	explanation
(D=0.58)	Minimum energy of the real photon source.

Table 7.4.6 e-smax

value	explanation
(D=0.62)	Maximum energy of the real photon source.

Table 7.4.7 t-type

value	explanation
1, 2, 3, 4, 5 (optional)	Time mesh. See Section 6.6.1 for mesh subsection format.

Table 7.4.8 unit

value	explanation
1 (only)	[1/cm^2/source]

Table 7.4.9 axis

value	explanation
eng, reg, x, y, z, r	x axis value of output data.
xy, yz, xz, rz	2-dimensional.
t	Time axis.

Table 7.4.10 file

value	explanation
file name	Define output file names. This is required by each setting of axis.

Table 7.4.11 resfile

value	explanation
(optional, D=file)	Define a file name of the past tally in the restart calculation. Even if several axis parameters were defined, specify only one resfile.

Table 7.4.12 factor

value	explanation
(optional, D=1.0)	Normalization factor.

Table 7.4.13 title

value	explanation
(optional)	Title.

Table 7.4.14 angel

value	explanation
(optional)	ANGEL parameters.

Table 7.4.15 sangel

value	explanation
(optional)	Special format for ANGEL parameters.

Table 7.4.16 2d-type

value	explanation
1, 2, 3, 4, 5, 6, 7	Options for 2-dimensional plot.
(optional, D=3)

Table 7.4.17 x-txt

value	explanation
(optional)	\(x\) axis title.

Table 7.4.18 y-txt

value	explanation
(optional)	\(y\) axis title.

Table 7.4.19 z-txt

value	explanation
(optional)	\(z\) axis title.

Table 7.4.20 gshow

value	explanation
0 (default), 1, 2, 3, 4, 5	When mesh=xyz and axis=xy,yz,xz, region border (1), material name (2), region name (3), and LAT number (4) are plotted using this option. gshow=5 outputs only material colors in pixel style when icntl=8.

Table 7.4.21 rshow

value	explanation
0 (default), 1, 2, 3	When mesh=reg,tet and axis=xy,yz,xz, region border (1), material name (2), and region name (3) are plotted using this option. A xyz mesh section must be added below this option.

Table 7.4.22 resol

value	explanation
1 (default)	This option multiplies the region line resolution by a factor of resol with the gshow or rshow option set to define the line thickness.

Table 7.4.23 width

value	explanation
0.5 (default)	The option defines the line thickness.

Table 7.4.24 volume

value	explanation
(optional)	This option defines the volume for each region for reg mesh. Volume definitions are required below this option. Values defined in [volume] are used in the case of no definition. If special description such as using (  ) is used to specify a region in reg=, its internally defined region number is output in input echo when this volume subsection is not defined.
reg vol	Volume definition. For details see the [volume] section.

Table 7.4.25 iechrl

value	explanation
72 (default)	Maximum number of columns for volume input echo.

Table 7.4.26 volmat

value	explanation
(optional, D=9)	This option corrects the volume value for each mesh when material is defined by the xyz mesh. 0 means no correction. Value of volmat is the number of scans per one xyz mesh side.

Table 7.4.27 epsout

value	explanation
0 (default), 1, 2	When epsout=1, results are plotted into eps files. The eps file is named by replacing the extension with .eps. When epsout=2, error bars are also displayed in the eps file, except for the 2-dimensional type, axis=xy, yz, xz, rz.

Table 7.4.28 ctmin(i)

value	explanation
(optional, D=-9999)	Minimum value for the i-th counter.

Table 7.4.29 ctmax(i)

value	explanation
(optional, D=9999)	Maximum value for the i-th counter.

Table 7.4.30 chmin(i)

value	explanation
(optional, D=-9999)	Minimum value for the i-th history-counter. This parameter cannot be specified in the batch variance mode, istdev=1.

Table 7.4.31 chmax(i)

value	explanation
(optional, D=9999)	Maximum value for the i-th history-counter. This parameter cannot be specified in the batch variance mode, istdev=1.

Table 7.4.32 trcl

value	explanation
(optional)	Coordinate transformation number or definition for r-z or xyz mesh.

Table 7.4.33 gslat

value	explanation
2 (default)	Option to draw lattice or tetrahedral geometry boundary lines when gshow or rshow is specified.
0	Not drawing.
1	Drawing. Note that the line of voxel phantoms may not be drawn clearly.
2	Not drawing the lines in the same cell.
3	Not drawing the lines in the same material. In this case, the boundary of two adjacent cells filled with the same material is not also drawn, even if not lattice or tetrahedral geometry. When gshow>=3, cell and lattice numbers are now shown.

Table 7.4.34 stdcut

value	explanation
(optional, D=-1)	Threshold value of STD cut off.

When specifying stdcut, PHITS automatically stop the calculation depending on values of STD, standard deviation. This function is available when stdcut is positive and itall=0,1 is set in [parameters] section. When all relative values of STD of the tally result are larger than 0 and smaller than stdcut at the last of one batch, the calculation is stopped. If stdcut in two or more tally sections is set, all the results of the tally sections have to satisfy the conditions in order for the function to work.

Table 7.4.35 multiplier

value	explanation
Number of material	Multiplier for each material.
(optional)	A multiplier subsection is required below this option. See the multiplier subsection for detailed usage.

When using the function to display the transition of tally results and errors, mesh points for the tally results and these statistical errors can be specified by setting the anatally subsection. This subsection should be defined between the lines anatally start and anatally end written in the tally section. See Section 6.10 for more details.