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ALLEGRA
A software package that analyzes radioactive decay products
and gamma spectra as a function of decay time, based on up to
7-member decay chains and the ORIGEN-2 data libraries.
Key Features
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ORIGEN-2 data libraries for 1040
radionuclides |
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7-member decay chains |
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Halogen, noble-gas and particulate
groupings |
Basic Features at a Glance
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Direct
use of the ORIGEN-2 decay data bases and photon spectra for
activation products, fission products, and actinides (with
a total number of radionuclides in excess of 1000)
[Updated ORIGEN-2 libraries can be accommodated without any
modifications to the software, provided the basic structure
of the libraries is not altered and the total number of radionuclides
does not exceed 1100. The photon library may be selected to
correspond to any one of the 3 forms available in ORIGEN-2,
namely with no bremsstrahlung, water bremsstrahlung, or UO2
bremsstrahlung.]
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Closed-form
solutions for the differential equations of radioactive decay
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Decay
chains which include up to a maximum of 7 members, each member
of a chain having the potential of decaying by a variety of
transformations (negatron emission to the ground or metastable
state of its offspring, positron emission or electron capture
to the ground or metastable state of its offspring, isomeric
transition, alpha emission, beta plus neutron emission, and
spontaneous fission)
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Printout
of the decay chains associated with the progeny of any radionuclide
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Computation
and printout of the radioactivity and gamma spectrum associated
with each individual radionuclide analyzed (parent nuclide
or offspring), along with radioactivity totals and gamma spectra
for the following:
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All
noble gases |
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All
halogens |
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All
radionuclides other than halogens and noble gases |
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All
radionuclides encountered in the analysis |
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A
user-specified mix of noble gases, halogens and
others |
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Preparation
of activity and spectral files for transfer to other software
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FORTRAN
77; 2000 coded lines; DOS and UNIX applications; ASCII file
input; 132-column output |
Documentation Package
P100-R15, Rev. 1, "A Computer
Code for the Determination of Radioactive Decay Products and
Gamma Ray Spectra (ORIGEN-2 Data Libraries and 7-Member Decay
Chains)
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P100-R15-A
- Technical Description and User's Manual |
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P100-R15-B
- Programmer's Guide and Source Listing |
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P100-R15-C
- Implementation Test Runs |
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P100-R15-C
- Software Validation Report |
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