%CROD Card
If the problems have control rods inserted, users can use this card. This card is mandatory for RODEJECT calculation mode.
| %CROD | Variable | Description | Remarks or examples |
|---|---|---|---|
| LINE 1 | NB | Number of CR banks | |
| NSTEP | Maximum number of steps | ||
| LINE 2 | POS0 | Zero step position (cm from bottom) | |
| SSIZE | step size (cm/step) | ||
| LINE 3 | BPOS(1:NB) | Control Rod Bank position (step) 0 step means full inserted | |
| LINE 4 | BMAP(1:NX) | Control Rod Bank Map | Repeat this line NY times (see example the input below) |
| LINE 5 | DISGTR(g) | Macroscopic Cross Section changes due to control rods insertion | Repeat LINE 2 NG times. And again repeat this input segment NMAT times. This line is not necessary if %XTAB card present |
| DSIGA(g) | |||
| DNUF(g) | |||
| DSIGF(g) | |||
| CHI(g) | |||
| DSIGS(g,1:NG) |
Example:
! CONTROL CARD
%CROD
7 228 ! Number of CR banks and max number of banks
37.7 1.5942237 ! Zero step pos. (cm) and cm/step (total 228 steps)
0. 0. 0. 228. 0. 0. 0. ! CR Bank pos. (0=fully inserted, 228=fully withdrawn)
1 0 2 0 0 0 3 0 0 ! (LINE 4)
0 4 0 0 0 6 0 0 0
2 0 5 0 6 0 6 0 0
0 0 0 4 0 0 0 0 0
0 0 6 0 7 0 0 0 0
0 6 0 0 0 0 0 0 0
3 0 6 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0
! CX changes
! sigtr siga nu*sigf kappa*sigf sigs_g1 sigs_g2
3.73220E-03 2.47770E-03 -1.02786E-04 -1.21448E-15 0.0 -3.19253E-03
-2.19926E-02 2.55875E-02 -2.82319E-03 -3.70238E-14 0.0 0.00000E+00 !COMP 1
3.73220E-03 2.47770E-03 -1.02786E-04 -1.21448E-15 0.0 -3.19253E-03
-2.19926E-02 2.55875E-02 -2.82319E-03 -3.70238E-14 0.0 0.00000E+00 !COMP 2
3.73220E-03 2.47770E-03 -1.02786E-04 -1.21448E-15 0.0 -3.19253E-03
-2.19926E-02 2.55875E-02 -2.82319E-03 -3.70238E-14 0.0 0.00000E+00 !COMP 3
3.73220E-03 2.47770E-03 -1.02786E-04 -1.21448E-15 0.0 -3.19253E-03
-2.19926E-02 2.55875E-02 -2.82319E-03 -3.70238E-14 0.0 0.00000E+00 !COMP 4
3.73220E-03 2.47770E-03 -1.02786E-04 -1.21448E-15 0.0 -3.19253E-03
-2.19926E-02 2.55875E-02 -2.82319E-03 -3.70238E-14 0.0 0.00000E+00 !COMP 5
3.74092E-03 2.42926E-03 -1.22634E-04 -1.47557E-15 0.0 -3.14239E-03
-1.67503E-02 2.56478E-02 -3.28086E-03 -4.30444E-14 0.0 0.00000E+00 !COMP 6
3.73220E-03 2.47770E-03 -1.02786E-04 -1.21448E-15 0.0 -3.19253E-03
-2.19926E-02 2.55875E-02 -2.82319E-03 -3.70238E-14 0.0 0.00000E+00 !COMP 7
3.73220E-03 2.47770E-03 -1.02786E-04 -1.21448E-15 0.0 -3.19253E-03
-2.19926E-02 2.55875E-02 -2.82319E-03 -3.70238E-14 0.0 0.00000E+00 !COMP 8
3.73220E-03 2.47770E-03 -1.02786E-04 -1.21448E-15 0.0 -3.19253E-03
-2.19926E-02 2.55875E-02 -2.82319E-03 -3.70238E-14 0.0 0.00000E+00 !COMP 9
3.73220E-03 2.47770E-03 -1.02786E-04 -1.21448E-15 0.0 -3.19253E-03
-2.19926E-02 2.55875E-02 -2.82319E-03 -3.70238E-14 0.0 0.00000E+00 !COMP 10
3.73220E-03 2.47770E-03 -1.02786E-04 -1.21448E-15 0.0 -3.19253E-03
-2.19926E-02 2.55875E-02 -2.82319E-03 -3.70238E-14 0.0 0.00000E+00 !COMP 11