Code Manual for CONTAIN 2.0 - Federation of American Scientists

14.3.1.10 Fission Product Initial Conditions and Release Rates. The optional FPM-CELL block is
used to speci~ initial fission product masses on the hosts within a cell. User-specified host-to-host <
transfer rates for fission products within the targeted release and acceptance model are also defined
in this input block. An obsolete nontargeted release and acceptance model is also available, as
described in Appendix B.
The S-HOST option is an alternative to the HOST option. This option differs from the HOST option
in two respects: (1) the fission product masses are specified by using the names of the fission
products rather than a list of masses; and (2) they are divided up among the linear chains according
to the inventory factors of the fission product.
***** ***** ***** ***** ***** ************************************************
FPM-CELL
{(HOST=hnarne (masses)) or
(S-HOST=hnarne (fname=mass) EOI)}
[TARGET
(@name aval bval tth [FROM=mame TO=anarne]) EOIl
EOI
***** ***** ***** ***** ***** ************************************************
FPM-CELL the keyword to initiate the specification of fission product initial masses and
user-specified host-to-host transfers of fission products.
HOST the keyword to initiate the input of a vector of fission product initial masses
for a given host.
hname a simple name or a name and qualifier that identify the host to which the
fission product mass will be assigned. Valid simple names are: GAS,
“aemarne, “ “strnarne,” and DUMMY, where “aername” is a valid aerosol
component name and “strname” is the name of a structure in the cell (the
inner surface is the indicated host in this case). The DUMMY host is used
for miscellaneous release and acceptance purposes. Names with qualifiers
may be used in the following combinations: INNER “strname,” OUTER
“strname,” AEROSOL “aemame,” AEROSOL “n,”LAYER “n,”and LAYER
POOL. The INNER and OUTER qualifiers are used to specify a particular
side of a given structure since each structure is a double host. Either a name
(“aemame”) or a number (“n”) may follow the AEROSOL word to specify an
aerosol component. Only the pool layer may be accessed by name as shown
above; all other lower cell layers must be denoted by LAYER followed by a
number, “n.” Layers are numbered beginning with 1 at the bottom. Three
more simple names, ROOF, WALL, and FLOOR, are also accepted. These
generic names refer here to all inner surfaces of structures of type ROOF,
WALL, and FLOOR, respectively, and certain outer surfaces of structures of
type FLOOR, WALL, and ROOF. To be considered among one of the
Rev O 14 106 6/30/97