NMSS-0007: Criticality Benchmarks Greater than 5% Enrichment
DESCRIPTION
The importance of computer software (methods and data) in establishing the criticality safety of systems with fissile material is increasing as licensees
NMSS-0006: Criticality in Low-Level Waste
DESCRIPTION
This issue was identified[1]by NMSS and addresses the potential for special nuclear material containing unusual moderators t
NMSS-0005: Potential for Erroneous Calibration, Dose Rate, or Radiation Exposure Measurements with Victoreen Electrometers
DESCRIPTION
This issue was identified[1]by NMSS when Victoreen, Inc., notified the NRC that some of its M
NMSS-0004: Overexposures Caused by Sources Stolen from Facility of Bankrupt Licensee
DESCRIPTION
This issue was identified[1]by NMSS after Cobalt-60 radiography sources were stolen from a bankrupt licensee (Larpen of Texa
NMSS-0003: Corrosion of Sealed Sources Caused by Sensitization of Stainless Steel Source Capsules During Shipment
DESCRIPTION
This issue was identified[1]by NMSS with the discovery of intergranular corrosion in one manu
NMSS-0002: Significant Quantities of Fixed Contamination Remain in Krypton-85 Leak-Detection Devices after Venting
DESCRIPTION
This issue was identified[1]by NMSS after several cases were reported where licensees found r
NMSS-0001: Door Interlock Failure Resulting from Faulty Microselectron High Dose Rate Remote Afterloader
DESCRIPTION
During the administration of the third of a three-fraction vaginal treatment of a patient on January 9, 1996, the treatment console of a Nucletron high-d
Section 6. Nuclear Material Safety and Safeguards GSIs
The issues presented in this section include those non-reactor GSIs identified, prioritized, and resolved by NMSS.
Task CH6: GRAPHITE-MODERATED REACTORS: Graphite-Moderated Reactors: The Fort St. Vrain Reactor and the Modular HTGR
The Fort St. Vrain HTGR and DOE's N-reactor at the Hanford Reservation in Washington State are the only
Task CH5: SEVERE ACCIDENT PHENOMENA: Source Term: Mechanical Dispersal in Fission Product Release
The highly energetic reactivity excursion accident at Chernobyl mechanically disrupted the core, rapidly vaporized the water coolant with which the fragmented fuel came into