7 THE N RECORDS
 

The nuclide monitor blocks are identified to facilitate postprocessing of radionuclide simulations. Nuclide concentrations are written to UNIT 9 (Section 10.8) at each time step for each block as identified. The file is formatted beginning with the value of time, followed by a set of concentration values. In each record the nuclide component is identified, followed by a sequential list of concentrations; one for each monitor block. Subsequent components follow sequentially.

Postprocessing may consist of time series plots or tables. Because of device dependence of graphics software, a postprocessing must be provided by the user. The output file may be imported to a spreadsheet or processed by other user programs (see Section 10.8).

Nuclide monitor blocks can be used to obtain nuclide mass faction breakthrough; time series concentration data, and with the water mass flux rate, calculate in nuclide mass discharge rate. This would be useful in risk assessment or evaluating the performance of a remedial strategy.

7.1 NUCLIDE MONITOR BLOCK

Skip to R2-1 if LBI0 = 0 (M-2).

READ N-1 (3I5) Monitor block location.

LIST: IDSC, JDSC, KDSC
  IDSC I index for block location.

JDSC J index for block location.

KDSC K index for block location.

Read as many records as necessary, terminating with a blank record.