Performance Testing and Validation Plan for HMS4 Quantitative Gamma Measurements, K-25/K-27 D&D Project, East Tennessee Technology Park, Oak Ridge, Tennessee

Technical Report · Mon Apr 14 04:00:00 EDT 2008

DOI:https://doi.org/10.2172/949979· OSTI ID:949979

Thiesing, J. W.; Donohoue, Tom; McCague, Jim; Martin, Ray; Royce, Ralph; Thomas, Troy

The Holdup Measurement System 4 (HMS4) is a portable thallium activated sodium iodide (NaI[Tl]) gamma ray energy spectrometer that, when properly calibrated, is able to make quantifiable assessment of U-235 holdup in the presence of other uranium isotopes and prevailing background radiation. The use and calibration of the HMS4 is based upon the methodologies defined by Russo in La-14206, (Russo 2005), where detection efficiency determination protocols are defined (called Generalized Geometry Holdup [GGH]). The GGH methodology together with attenuation correction algorithms and other modeling parameters are combined in the HMS4 software package to provide a comprehensive tool for conducting in situ gamma-ray measurements. The fundamental principles of these capabilities are discussed.

• Research Organization: East Tennessee Technology Park (ETTP), Oak Ridge, TN
• Sponsoring Organization: USDOE Assistant Secretary for Environmental Management (EM)
• DOE Contract Number: AC05-98OR22700
• OSTI ID: 949979
• Report Number(s): BJC/OR-2930/R1
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ALGORITHMS
ATTENUATION
BACKGROUND RADIATION
CALIBRATION
COMPUTERIZED SIMULATION
CORRECTIONS
DETECTION
EFFICIENCY
OAK RIDGE
P
HMS4
Quantitative Gamma Measurements
K-25/K-27 D&D
PERFORMANCE TESTING
SODIUM IODIDES
SPECTROMETERS
TENNESSEE
THALLIUM
URANIUM 235
URANIUM ISOTOPES
VALIDATION