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Heather H. Chen-Mayer (Fed)

Current and past research interest at NIST:

2010 – Present: Physicist, Radioactivity Group, Radiation Physics Division, PML

  • Development of CT dose standard, direct determination of absorbed dose to phantom using calorimetry
  • Development of CT imaging standard specifically for lung density CT applications and statistical modeling of lung density data
  • Finite element modeling for CT dosimetry

2003 - 2010: Physicist, Dosimetry Group, Radiation Physics Division, PML

  • Water calorimetry as a primary absorbed dose standard in Cobalt-60 and linear accelerator
  • Ultrasound thermometry for radiation dose measurement
  • Finite element modeling of conduction and convection heat transfer in water

1995 - 2003: Physicist, Nuclear Methods Group, Analytical Chemistry Division, CSTL

  • Neutron beam focusing using capillary optics applied to nuclear analytical techniques, specifically Prompt gamma activation analysis and Neutron depth profiling

1990 - 1995: Guest Researcher, Nuclear Methods Group, Analytical Chemistry Division, CSTL

  • Neutron beam focusing using capillary optics

Publications

Calorimetry in Computed Tomography Beams

Author(s)
Heather H. Chen-Mayer, Ronald Tosh, Fred B. Bateman, Paul Bergstrom, Brian E. Zimmerman
A portable calorimeter for direct realization of absorbed dose in medical computed tomography (CT) procedures was constructed and tested in a positron emission
Created October 9, 2019, Updated December 8, 2022