In Situ Verification Techniques For Fast Critical Assembly Cores

Conference · Sun Jun 01 00:00:00 EDT 1980 · Transactions of the American Nuclear Society

OSTI ID:5779383

Brumbach, S. B. ^[1]; Roche, C. T. ^[1]; Amundson, P. I. ^[1]

---

1. Argonne National Laboratory (ANL), Argonne, IL (United States)

Active and passive autoradiographic techniques were used to obtain piece counts of fuel plates in fast critical assembly drawers and to verify the assembly loading pattern. Active autoradiography using prompt-fission and fission-product radiation was more successful with uranium fuel while passive autoradiography was more successful with plutonium fuel. A source multiplication technique was used to measure changes in reactivity when small quantities (2-2.5 kg) of fissile material were removed from a subcritical reference core of the Zero Power Plutonium Reactor.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL (United States)
• Sponsoring Organization: USDOE National Nuclear Security Administration (NNSA), Nuclear Criticality Safety Program (NCSP)
• OSTI ID: 5779383
• Journal Information: Transactions of the American Nuclear Society, Vol. 33, Issue 1; Conference: NBS Special Publication (United States) National Bureau of Standards Supply Pap.
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
98 NUCLEAR DISARMAMENT, SAFEGUARDS, AND PHYSICAL PROTECTION
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
NUCLEAR MATERIALS MANAGEMENT
RADIATION DETECTORS
PERFORMANCE
ZERO POWER REACTORS
EXPERIMENTAL REACTORS
MANAGEMENT
MEASURING INSTRUMENTS
REACTORS
RESEARCH AND TEST REACTORS
Nuclear Criticality Safety Program (NCSP)
Autoradiographic Techniques
Piece Counts
Fuel Plates
Fast critical Assembly Drawers
Assembly Loading Pattern
Prompt-Fission
Fission-Product Radiation
Source Multiplication Technique
Reactivity Changes
Fissile Material Removal
Subcritical Reference Core
Zero Power Plutonium Reactor
220600* - Nuclear Reactor Technology- Research
Test & Experimental Reactors
055001 - Nuclear Fuels- Safeguards
Inspection
& Accountability- Technical Aspects