1 Measurement & Instrumentation, Department of Electrical Engineering, Technical University of Denmark2 Department of Electrical Engineering, Technical University of Denmark3 Department of Automation, Technical University of Denmark4 National Space Institute, Technical University of Denmark
Calibration of carborne gamma-ray spectrometry systems for 137Cs is carried out with a source successively placed at 791 positions within an area of 34m 62m. A computer model supplements the measurements. Hereby a sensitivity map for a surface contamination is generated as well as line and area sensitivities. Another model converts surface sensitivity to sensitivity for a deep contamination. Use of the sensitivity map for a non-homogeneous distribution of 137Cs is demonstrated. Applications of line sensitivities for special tasks are discussed.
Applied Radiation and Isotopes, 2006, Vol 64, Issue 8, p. 948-956