Iridium an Important Neutron Flux Monitor

SPEAKER:

DR. ROBERT RUNDBERG

TECHNICAL STAFF MEMBER
LOS ALAMOS NATIONAL LABORATORY DATE/TIME: MON, 03/04/2019 – 4:00PM TO 5:00PM LOCATION: 3105 ETCHEVERRY HALL Spring 2019 Colloquium Series Abstract: Iridium has been used for decades at Los Alamos as a fluence monitor in underground nuclear testing. Iridium can be used to monitor three neutron spectral groups at once, thermal/epithermal, 14 MeV, and fission spectrum (>2 MeV). The nuclear reaction Ir-193(n,n’)Ir-193m
has not had a model independent cross section, until recently. The first measurement of the cross section was made last fall at the Berkeley HFNG. About the Speaker:

Robert Rundberg received a PhD. in physical chemistry from the City University of New York under the mentorship of Radiochemists Harmon Finston and Evan Williams. He has worked at Los Alamos National Laboratory for over 40 years. He has measured various nuclear cross sections ranging from pion nuclear reactions to neutron capture.