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
 |
ORIGEN-2
data libraries for 1040 radionuclides |
|
7-member
decay chains |
|
Halogen,
noble-gas and particulate groupings |
Basic Features at a Glance
 |
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.]
|
|
Closed-form
solutions for the differential equations of radioactive decay
|
|
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)
|
|
Printout
of the decay chains associated with the progeny of any radionuclide
|
|
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:
 |
All
noble gases |
|
All
halogens |
|
All
radionuclides other than halogens and noble gases |
|
All
radionuclides encountered in the analysis |
|
A
user-specified mix of noble gases, halogens and others |
|
|
Preparation
of activity and spectral files for transfer to other software
|
|
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)
 |
P100-R15-A
- Technical Description and User's Manual |
|
P100-R15-B
- Programmer's Guide and Source Listing |
|
P100-R15-C
- Implementation Test Runs |
|
P100-R15-C
- Software Validation Report |
|
