March 21, 1996

FORTRAN Modifications in CAP88 Version 2.0 (Beta-Test Version)

There are some differences in the FORTRAN code between the
original release of CAP88-PC, version 1.0, and this beta-test
copy of version 2.0.  The FORTRAN code was modified to add six
new decay chain series, correct a minor error in the uranium
decay chain, correct a typographical error in the concentration
reports, and to make other minor changes.  Since this is a beta-
test version, these changes have not yet been formally reviewed
or approved by the Environmental Protection Agency or the
Department of Energy, for use in demonstrating compliance with
Subpart H of 40 CFR 61, the NESHAPS standards for Department of
Energy facilities.

A description of the FORTRAN modifications in the beta-test copy
of version 2.0 is given below.

1)  The following new decay chains were added:

Chain Name     Decay Chain         Buildup Factors

STRONTIUM      SR-90/Y-90          f1=2.09e+3
ZIRCONIUM      ZR-95/NB-95         f1=1.86e+0
RUTHENIUM 103  RU-103/RH-103M      f1=9.86e+2
RUTHENIUM 106  RU-106/RH-106       f1=1.03e+6
CERIUM         CE-144/PR-144       f1=2.32e+4
PLUTONIUM      PU-241/AM-241       f1=1.97e-2

2)  The uranium chain (U-238) was corrected by replacing PA-234
with PA-234M.  No change was needed to the buildup factors.

3)  Users can now also add partial chains from the Uranium or
Thorium decay chains.  The Uranium chain (U-238) has 14 members. 
Any of the members except RN-222 (Radon), PB-210 (Lead), and
PB-208 (U chain end) may be selected and the user is given the
choice to add "the rest of the chain" starting with the chain
member selected.  RN-222 (Radon) is treated as a special case
when selected.  PB-210 (Lead) is treated as the beginning of the
Lead chain.  PB-208, as the end of the Uranium chain, has no
decay products to be added.

Any member of the Thorium chain (TH-232), except for PB-208 (TH
chain end) may be selected and the user is given the choice to
add "the rest of the chain" starting with the chain member
selected.

4)  AIRDOS was altered to correct units displayed in column
headings for the "Estimated Radionuclide Concentrations" report
in the Concentration output file.  Dry, Wet, and Ground
Deposition Rate units labelled "(pCi/m2/s)" were corrected to
read "(pCi/cm2/s)".  NO CHANGES WERE MADE TO THE CALCULATIONS. 
ONLY THE REPORT COLUMN HEADINGS WERE CHANGED.

5)  AIRDOS, DEFAULT, and DARTAB were edited to remove the
CAP88-PC Version number from the report title pages, above the
title "Clean Air Act Assessment Package - 1988".

6)  DARTAB was altered to correct indexes in a 4-dimensional
array to properly initialize the array.

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Thank you for your interest in this beta-test version of CAP88-
PC, version 2.0.  If you would prefer to forward your comments
via electronic mail, my address is:  

Barry.Parks@mailgw.er.doe.gov

I look forward to hearing from you!