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Health Physics|January 1, 1992
Elevation correction factors for E-PERM radon monitorsP Kotrappa, L R StieffRadiation Protection Dosimetry|November 25, 2004
Radon monitor calibration using NIST radon emanation standards: steady flow methodP Kotrappa, L R Stieff, P VolkovitskyHealth Physics|January 1, 1988
An electret passive environmental 222Rn monitor based on ionization measurementP Kotrappa, J C Dempsey, J R Hickey, et al.Health Physics|March 16, 2006
Performance of electret ionization chambers in magnetic fieldP Kotrappa, L R Stieff, T F Mengers, et al.Health Physics|April 1, 1990
A practical E-PERM (electret passive environmental radon monitor) system for indoor 222Rn measurementP Kotrappa, J C Dempsey, R W Ramsey, et al.Health Physics|September 21, 2002
Measurement of alpha particle energy using windowless electret ion chambersS K Dua, P Kotrappa, R Srivastava, et al.Radiation Protection Dosimetry|September 11, 2010
Electret ion chamber-based passive radon-thoron discriminative monitorsP Kotrappa, D SteckRadiation Protection Dosimetry|October 2, 2007
One cubic metre NIST traceable radon test chamberP Kotrappa, F StieffHealth Physics|April 1, 1993
Electret ion chamber radon monitors measure dissolved 222Rn in waterP Kotrappa, W A JesterPageof 2