Keran O'Brien III B.S., Physics, Fordham University, 1953   25 Corte Banca Sedona, Arizona, 86351 Email: Keran.O'Brien@nau.edu Phone: 928-284-9418

CURRICULUM VITAE

Physicist, USAEC's Health and Safety Laboratory (now US Department of Energy's Environmental Measurements Laboratory) from 1953 to 1987. Principal staff member in 1961. Director of Radiation Physics Division from 1981 to 1987. Retired from Federal service in 1987. Appointed adjunct research professor of physics at Northern Arizona University in 1988. Became private consultant on retirement from the Federal service. Clients have included the Superconducting Super Collider Central Design Group and Superconducting Super Collider Laboratory, the Federal Aviation Administration, Woods Hole Oceanographic Institute, the US Department of Energy, the Taiwan Radiation Monitoring Center, GSF (Munich) and the Austrian Research Center. Became a member of the editorial board of the journal, Radiation Protection Dosimetry in 1987. Los Alamos National Laboratory Affiliate from 1989 to 1994.

Charter member of the USAEC's (later, USDOE's) Advisory Panel on Accelerator Radiation Safety (APARS), 1965-70. Reappointed in 1977 and served until 1990. Chairman of APARS subcommittee on the Alternating Gradient Synchrotron modification in 1970 and the Linear Accelerator Upgrade at Fermilab in 1990. Guest lecturer at the Ettore Majorana Centre in 1978. Served as the American Nuclear Society's Radiation Protection and Shielding Division's representative to the Reference Nuclear Data Panel of the National Nuclear Data Center in 1981.

Appointed to the American Nuclear Society's Working Group ANS/ANSI-6.1.1, "Neutron and Gamma-Ray Flux-to-Dose Rate Factors" in 1981. Appointed to Working Group ANS/ANSI-6.6.1, "Calculation and Measurement of Direct and Scattered Gamma Radiation from LWR Nuclear Power Plants" in 1984. Appointed to National Commission on Radiation Protection and Measurements (NCRP) Task Group 46-8, to rewrite NCRP report 51, "Radiation Protection Guidelines for 0.1-100 MeV Particle Accelerator Facilities" in 1987. Appointed to Committee on Dosimetry for the National Science Foundation National Research Council Advisory Committee on the Radiation Effects Research Foundation for the terms, January 1, 1991 to December 31, 1993 and January 1, 1994 to December 31, 1997. Appointed to the Joint Task Group of the International Commission on Radiation Protection and the National Commission on Radiation Measurements, to prepare a joint report on reference values for the evaluation of exposure of aircrew to cosmic radiation, November 2002. Appointed to the National Council on Radiation Protection and Measurement's committee SC-6, to determine the radiation exposure of the U.S. population.

Member of the American Physical Society, American Nuclear Society, Radiation Research Society, American Archaeological Institute, Sigma Xi, American Geophysical Union, Health Physics Society and adjunct member of the National Council on Radiation Protection and Measurement.

More than 100 papers, four book chapters. Areas of research include neutron spectrometry (deconvolution theory), human radiation dose, cosmic-ray propagation in the earth's and other planetary atmospheres, cosmogenic isotope production, including the determination of the carbon-14 inventory, atmospheric neutrinos, electromagnetic and hadronic cascades in matter, high-energy radiation transport theory and the shielding of high-energy particle accelerators. Current areas of research include the exposure of aircraft and astronaut crews to cosmic and solar energetic-particle radiation, cosmic-ray propagation in the heliosphere, and the impact of cosmic-ray ionization on climate.

Received the American Nuclear Society's Radiation Protection and Shielding Division's Outstanding Service Award for Technical Excellence in 1976. Elected a Fellow of the American Nuclear Society in 1981.