A spectroscopic radiation portal monitor (SPM) prototype consisting of four 10.16 cm x 10.16 cm x 40.64 cm (4”x4”x16”) sodium iodide (NaI) crystals has been constructed at Pacific Northwest National Laboratory (PNNL). The prototype was put through a variety of tests, including measurements of the absolute detection efficiency of unshielded sources and the detection efficiency and isotopic identification capability of the detector for shielded isotopic sources. The portal’s response to various types of cargo and source configurations was also studied. The results of these tests are presented in this report.
Revised: March 5, 2009 |
Published: October 23, 2005
Citation
McCormick K.R., D.C. Stromswold, J.H. Ely, J.E. Schweppe, and R.T. Kouzes. 2005.Spectroscopic Radiation Portal Monitor Prototype. In 2005 IEEE Nuclear Science Symposium Conference Record, 1, 292-296. Piscataway, New Jersey:IEEE.PNNL-SA-47420.doi:10.1109/NSSMIC.2005.1596256