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Health Physics|January 1, 1995
Electret method for continuous measurement of the concentration of radon in waterS K Dua, P K Hopke, P KotrappaJournal of Research of the National Institute of Standards and Technology|November 21, 2017
Calibration of Electret-Based Integral Radon Monitors Using NIST Polyethylene-Encapsulated 226Ra/222Rn Emanation (PERE) StandardsR Collé, P Kotrappa, J M R HutchinsonHealth Physics|February 1, 1986
Radium-226 body burden in U miners by measurement of Rn in exhaled breathG K Srivastava, M Raghavayya, P Kotrappa, et al.Health Physics|February 1, 1994
Field test of electret ion chambers for environmental monitoringR A Fjeld, K J Montague, M H Haapala, et al.Journal of Nuclear Medicine : Official Publication, Society of Nuclear Medicine|November 1, 1977
Scintiphotography of lungs with dry aerosol--generation and delivery system: concise communicationP Kotrappa, B Raghunath, P S Subramanyam, et al.Health Physics|December 1, 1986
Measurement of 220Rn in exhaled breath of Th plant workersY S Mayya, S K Prasad, P P Nambiar, et al.American Industrial Hygiene Association Journal|November 1, 1976
Assessment of airborne hazards in the thorium processing industryP Kotrappa, D P Bhanti, V B Menon, et al.Health Physics|September 1, 1982
Passive measurement of radon and thoron using TLD or SSNTD on electretsP Kotrappa, S K Dua, N S Pimpale, et al.Pageof 2