Timothy R. Twomey

A Figure of Merit for Comparing the Performance of Different Radiation Identification and Detection Systems Used in Illicit Trafficking Control

Neil A. Webster, Ronald M. Keyser, Michael D. Belbot, 2011 .

Performance of a Radiation Portal Freight Monitor based on Integrated Germanium Detector Modules

Ronald M. Keyser, Timothy R. Twomey, 2010 .

A Proposed Figure of Merit for Evaluating the Performance of Radiation Waste Measurement Systems

Neil A. Webster, Ronald M. Keyser, Michael D. Belbot, 2011 .

Analysis of long-lived isotopes in the presence of short-lived isotopes using zero dead time correction

Timothy R. Twomey, R. M. C. De Keyser, Reijo Sillanpaa, 2001, 2001 IEEE Nuclear Science Symposium Conference Record (Cat. No.01CH37310).

Optimization of pulse processing parameters for HPGe gamma-ray spectroscopy systems used in extreme count rate conditions and wide count rate ranges

Ronald M. Keyser, Timothy R. Twomey, 2012, Journal of Radioanalytical and Nuclear Chemistry.

Radiological Performance of an Automated HPGe Assay System for Bulk Containers of Decommissioning Waste Intended for Free Release

Ronald M. Keyser, Timothy R. Twomey, Gianluigi Migliore, 2010 .

Performance of a HPGe System for Surface and Container Measurements - 13582

Ronald M. Keyser, Timothy R. Twomey, 2013 .

Minimum Detectable Activity Estimates for a Germanium-Detector Based Spectroscopic Portal Monitor

Ronald M. Keyser, Timothy R. Twomey, Frank Sergent, 2006 .

New cooling methods for HPGE detectors and associated electronics

Ronald M. Keyser, Timothy R. Twomey, D. L. Upp, 2005 .