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* *
* card 1 *
* nendf unit for input endf/b tape *
* npend unit for input pendf tape *
* ngend unit for input multigroup photon data *
* nace unit for output ace tape *
* ndir unit for output mcnp directory *
* card 2 *
* iopt type of acer run option *
* 1 fast data *
* 2 thermal data *
* 3 dosimetry data *
* 4 photo-atomic data *
* 7 read type 1 ace files to print or edit *
* 8 read type 2 ace files to print or edit *
* 9 read type 3 ace files to print or edit *
* iprint print control (0 min, 1 max, default=1) *
* ntype ace output type (1, 2, or 3, default=1) *
* suff id suffix for zaid (default=.00) *
* nxtra number of iz,aw pairs to read in (default=0) *
* card 3 *
* hk descriptive character string (70 char max) *
* delimited by quotes *
* card 4 (nxtra.gt.0 only) *
* iz,aw nxtra pairs of iz and aw *
* *
* --- fast data (iopt=1 only) --- *
* *
* card 5 *
* matd material to be processed *
* tempd temperature desired (kelvin) (default=300) *
* card 6 *
* err tolerance for thinning distributions *
* iopp detailed photons (0=no, 1=yes, default=1) *
* card 7 *
* type of thinning is determined by sign of thin(1) *
* (pos. or zero/neg.=energy skip/integral fraction) *
* (all entries defaulted=no thinning) *
* thin(1) e1 energy below which to use all energies (ev) *
* or iwtt weighting option (1=flat,2=1/e) *
* (1/e actually has weight=10 when e lt .1) *
* thin(2) e2 energy above which to use all energies *
* or target number of points *
* thin(3) iskf skip factor--use every iskf-th energy *
* between e1 and e2, or rsigz reference sigma zero *
* *
* --- thermal data (iopt=2 only) --- *
* *
* card 8 *
* matd material to be processed *
* tempd temperature desired (kelvin) (default=300) *
* tname thermal zaid name ( 6 char max, def=za) *
* card 8a *
* iza01 moderator component za value *
* iza02 moderator component za value (def=0) *
* iza03 moderator component za value (def=0) *
* card 9 *
* mti mt for thermal incoherent data *
* nbint number of bins for incoherent scattering *
* mte mt for thermal elastic data *
* ielas 0/1=coherent/incoherent elastic *
* nmix number of atom types in mixed moderator *
* (default=1, not mixed) *
* (example, 2 for beo or c6h6) *
* emax maximum energy for thermal treatment (ev) *
* (default=1000.=determined from mf3, mti) *
* iwt weighting option *
* 0/1=variable/constant (default=variable) *
* *
* --- dosimetry data (iopt=3 only) --- *
* *
* card 10 *
* matd material to be processed *
* tempd temperature desired (kelvin) (default=300) *
* *
* --- photo-atomic data (iopt=4 only) --- *
* *
* card 11 *
* matd material to be processed *
* *
* --- print or edit existing files (iopt=7-9) --- *
* *
* no additional input cards are required. mount the old *
* ace tape on "npend". the code can modify zaid, hk, *
* the (iz,aw) list, and the type of the file. use suff<0 *
* to leave the old zaid unchanged. use just "/" on *
* card 3 to leave the comment field hk unchanged. use *
* nxtra=0 to leave the old iz,aw list unchanged. *
* the code can modify zaid, hk, and type of file. *
* *
* exhaustive consistency checks are automatically made on *
* the input file. if ngend.ne.0, a set of standard ace plots *
* are prepared on unit ngend as plotr input instructions. *
* *
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