Health Physics Society Journal

May 2016, Volume 110, Number 5

On the cover: two photographs from the Canadian Full-Scale Radiological Dispersal Device (FSRDD) Field Trials, which are detailed in multiple papers in this issue. Top: the FSRDD field trial site being set up. The tripod in the foreground marks ground zero (GZ) for the detonation of a simulated radiological dispersal device. Immediately surrounding GZ are a number of deposition witness plates. Beyond this are radial lines of radiation detectors mounted within enclosures on 1 m high stands. In the distance can be seen air sampling equipment mounted on yellow tripods. At the hill crest is a team next to a truck setting up additional detection and sampling equipment. Photo courtesy of Debora Quayle, Health Canada Radiation Protection Bureau. Bottom: a survey team in the hot zone of the FSRDD Field Trials, post detonation. The team is using handheld beta probes to perform measurements of radioactive deposition on witness plates. The large metal plate in the lower left corner of the photo is GZ. Debris from the dispersal device can be seen around GZ. One of the radial lines of radiation detector enclosures can be seen just above GZ in the photograph. A handheld beta survey instrument can be seen on a witness plate at the feet of the survey team member on the right. The survey team included Ian Watson from Defence Research and Development Canada (on the left) and a member of the Canadian Joint Incident Response Unit (on the right). Photo courtesy of Lorne Erhardt, Defence Research and Development Canada.

CONTENTS

GUEST EDITORIALS

Introduction to the Special Issue on Experiments Involving the Outdoor Energetic Release of Radioactive Materials — Lorne Erhardt

International Outdoor Experiments and Models for Outdoor Radiological Dispersal Devices — Daniel J. Blumenthal and Stephen V. Musolino

PAPERS

Overview of the Full-Scale Radiological Dispersal Device Field Trials — Anna Rae Green, Lorne Erhardt, Luke Lebel, M. John M. Duke, Trevor Jones, Dan White, and Debora Quayle

Measuring Concentrations of Particulate ¹⁴⁰La in the Air — Colin E. Okada, Warnick Kernan, Martin Keillor, Randy Kirkham, Rich D. Sorom, and Don M. Van Etten

Real Time In Situ Gamma Radiation Measurements of the Plume Evolution From the Full-Scale Radiological Dispersal Device Field Trials — Ed Korpach, Rodney Berg, Lorne Erhardt, Luke Lebel, and Chuanlei Liu

Scanning Lidar Measurements of the Full-Scale RDD Field Trial Puff Plumes — Xiaoying Cao and Gilles Roy

Deposition Measurements From the Full-Scale Radiological Dispersal Device Field Trials — Lorne Erhardt, Luke Lebel, Ed Korpach, Rodney Berg, Elizabeth Inrig, Ian Watson, Chuanlei Liu, Colleen Gilhuly, and Debora Quayle

Aerial Mobile Radiation Survey Following Detonation of a Radiological Dispersal Device — Laurel E. Sinclair, Richard Fortin, John L. Buckle, Maurice J. Coyle, Reid A. Van Brabant, Bradley J.A. Harvey, Henry C.J. Seywerd, and Martin W. McCurdy

Particle Density Using Deposition Filters at the Full Scale RDD Experiments — Rodney Berg, Colleen Gilhuly, Ed Korpach, and Kurt Ungar

Validation of the DIFFAL, HPAC and HotSpot Dispersion Models Using the Full-Scale Radiological Dispersal Device (FSRDD) Field Trials Witness Plate Deposition Dataset — Murray Purves and David Parkes

National Atmospheric Release Advisory Center Dispersion Modeling of the Full-Scale Radiological Dispersal Device (FSRDD) Field Trials — Stephanie Neuscamman and Kristen Yu

The Sensitivity of Atmospheric Dispersion Calculations in Near-Field Applications: Modeling of the Full Scale RDD Experiments with Operational Models in Canada, Part I — Luke Lebel, Pierre Bourgouin, Sohan Chouhan, Nils Ek, Volodymyr Korolevych, Alain Malo, Dov Bensimon, and Lorne Erhardt

Radiation Modeling and Finite Cloud Effects for Atmospheric Dispersion Calculations in Near-Field Applications: Modeling of the Full Scale RDD Experiments With Operational Models in Canada, Part II — Luke Lebel, Pierre Bourgouin, Sohan Chouhan, Nils Ek, Volodymyr Korolevych, Alain Malo, Dov Bensimon, and Lorne Erhardt

Using Atmospheric Dispersion Theory to Inform the Design of a Short-Lived Radioactive Particle Release Experiment — Jeremy P. Rishel, Martin E. Keillor, Leah M. Arrigo, James E. Baciak, Rebecca S. Detwiler, Warnick J. Kernan, Randy R. Kirkham, Brian D. Milbrath, Allen Seifert, Carolyn E. Seifert, and John E. Smart

PRex: An Experiment to Investigate Detection of Near-Field Particulate Deposition From a Simulated Underground Nuclear Weapons Test Vent — Martin E. Keillor, Leah M. Arrigo, James E. Baciak, Veraun Chipman, Rebecca S. Detwiler, Dudley F. Emer, Warnick J. Kernan, Randy R. Kirkham, Matthew R. MacDougall, Brian D. Milbrath, Jeremy P. Rishel, Allen Seifert, Carolyn E. Seifert, and John E. Smart

OTHER CONTENT

News and Notices

Health Physics Society Prospectus

Health Physics Society Affiliate Members

Author Guidelines

Advertisers Guide

Advertisers Index

Up and Coming

Health Physics (ISSN 0017-9078) is the Official Journal of the Health Physics Society and is published monthly by Lippincott Williams and Wilkins, 351 West Camden Street, Baltimore, MD 21201-2436. For news and abstracts, and to search past issues of the Health Physics Journal, please visit the Health Physics Journal website.