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Author: Ronald Tosh

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1. Measurements and Standards for Bulk-Explosive Detection
Published: 5/31/2012
Authors: Lawrence T Hudson, Fred B Bateman, Paul Mark Bergstrom, Frank Cerra, Jack Leigh Glover, Ronaldo Minniti, Stephen Michael Seltzer, Ronald E Tosh
Abstract: Due to the ease of assembly and leveraged disruptive effect, the improvised explosive device (IED) is the method of choice of today‰s terrorist. With more than ten thousand IED incidents annually, and global expenditures for aviation and commercial s ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=908862

2. Time-resolved radiation beam profiles in water obtained by ultrasonic tomography
Published: 12/31/2010
Authors: Eugene Malyarenko, Joseph Heyman, Huaiyu H Chen-Mayer, Ronald E Tosh
Abstract: This paper presents a practical ultrasonic system for near real-time imaging of spatial temperature distributions in water caused by absorption of radiation. Initial testing with radiation from a highly attenuated infrared lamp demonstrates that the ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=902937

3. A High Resolution Ultrasonic Thermometer for Measuring Absorbed Dose in Water Calorimeters
Published: 1/1/2007
Authors: Huaiyu H Chen-Mayer, Ronald E Tosh
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=100179

4. Frequency-domain Characterization of Heat Conduction in Sealed Water Calorimeters
Published: 1/1/2007
Authors: Ronald E Tosh, Huaiyu H Chen-Mayer
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=101254

5. The NIST Room Temperature Water Calorimeter
Published: 1/1/2005
Authors: Huaiyu H Chen-Mayer, Ronald E Tosh
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=103027

6. A Transfer-Function Approach to Characterizing Heat Transport in Water Calorimeters Used in Radiation Dosimetry
Published: Date unknown
Authors: Ronald E Tosh, Huaiyu H Chen-Mayer
Abstract: The calibration chain for medical radiotherapy beams requires a primary reference standard that defines the quantity of absorbed dose to water. Water calorimetry is the most direct technique for such measurements; however, its susceptibility to syst ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841211

7. Heat Transfer Effects in a Water Calorimeter for Measuring the Absorbed Dose of Therapy-Level Radiation Beams
Published: Date unknown
Authors: Ronald E Tosh, Huaiyu H Chen-Mayer
Abstract: Water calorimetry that directly measures the temperature rise (at the mK level) due to radiation heating is used as a primary standard for therapy-level gamma-radiation beams. The temperature rise is measured at a given point in space where the spati ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841213

8. High-Resolution Ultrasonic Thermometer for Radiation Dosimetry
Published: Date unknown
Authors: Eugene Malyarenko, Joseph Heyman, Huaiyu H Chen-Mayer, Ronald E Tosh
Abstract: This paper describes recent developments in the area of high-precision This paper describes recent developments in the area of high-precision ultrasonic thermometry with the potential to provide on-site direct determination of radiation dose and its ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841210

9. What Spectral Methods Can Tell Us About Heat Transfer Effects in Water Calorimeters
Published: Date unknown
Authors: Ronald E Tosh, Huaiyu H Chen-Mayer
Abstract: In water calorimetry, numerous ancillary effects such as radiation-induced chemical reactions, scattering and excess heat from nonwater materials, and dose nonuniformities within the phantom complicate the determination of absorbed dose from measu ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841207



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