Inventory verification analysis software for Pilcaniyeu (IVASP)

The development of this software supports SP-1 Joint Task Proposal 95/OB3-002 entitled "Implementation of Verification Methods for the Uranium Content in Diffusion Enrichment Plants." This joint task is between the governments of the United States and Argentina. This software is used for verification of nuclear material inventories at the Pilcaniyeu, Argentina gaseous diffusion plant by the International Atomic Energy Agency (IAEA). Several modules are contained in the software. The modules are arranged by similar activities called groups. The groups are "Calibrate", "Scan", "Quantify", "Verify", and "Measurement Control". Each group is further divided according to specific tasks. For example, the "Calibration" group allows for the calibration of a neutron slab detector, a NaI detector for quantitative and qualitative measurements. Scanning data is entered using the "Scan" group. The "Quantify" group is used to estimate gram quantities in a unit, a complete module, piping, and waste drums. Design verification, gamma-ray transmissions, and enrichment measurements are performed using the "Verify" group. The "Measurement Control" group is used to perform quality control determinations of the detectors. This software provides a quick and easy method to perform the repetitive tasks associated with inventory verification. The software also shows the values of the previous inspection.