Non-Destructive Measurements of the Characteristics of Radioactive Contamination of Near Surface Layers of Concrete and Ground with Collimated Spectrometric Detectors

Conference · Sat Jul 01 00:00:00 EDT 2006

OSTI ID:21208634

Potapov, V N; Danilovich, A S; Ignatov, S M; Volkovich, A G; Ivanov, O P; Stepanov, V E; Volkov, V G ^[1]

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1. RRC Kurchatov Institute, 1 Kurchatov Square, Moscow 123182 (Russian Federation)

The remote radiometric method for estimation of the characteristics of concrete and ground contamination by gamma nuclides was investigated. The studies were carried out for possible realization of a method with two types of spectrometric detectors: 1) scintillator + PMT and 2) scintillator + photo diode. The measurements of Cs-137 contamination were considered, as most widespread gamma-contaminant. The mathematical model of the radiometric device was developed for studying of a method, optimization of device's parameters and search of all dependences necessary for method realization. The collimated radiometer with volume of the detector 20 cm{sup 3} has the limiting sensitivity - MMA = 0.5 {mu}Ci/m{sup 2} (19 kBq/m{sup 2}) at thickness of contaminated concrete layer 5 cm. The method can be realized for measurement of contamination of concrete and ground by other gamma radiating nuclides also. (authors)

• Research Organization: WM Symposia, Inc., PO Box 13023, Tucson, AZ, 85732-3023 (United States)
• OSTI ID: 21208634
• Report Number(s): INIS-US-09-WM-06136; TRN: US09V0945079421
• Resource Relation: Conference: Waste Management 2006 Symposium - WM'06 - Global Accomplishments in Environmental and Radioactive Waste Management: Education and Opportunity for the Next Generation of Waste Management Professionals, Tucson, AZ (United States), 26 Feb - 2 Mar 2006; Other Information: Country of input: France; 8 refs
• Country of Publication: United States
• Language: English

Related Subjects

12 MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
CESIUM 137
CONCRETES
CONTAMINATION
GROUND DISPOSAL
MATHEMATICAL MODELS
PHOTODIODES
RADIOMETERS
SCINTILLATION COUNTERS
SCINTILLATOR-PHOTODIODE DETECTORS
SENSITIVITY