Conveners
Session 7: Neutron and Applied Nuclear Physics
- Andy Buffler (UCT)
This article reports in-situ measurements of the gamma dose rates and the activity concentrations 238U, 232Th and 40K, at about 1m above earth over kaolin mining fields in Ilorin-south and Ilorin-west, Kwara, Nigeria. A calibrated high precision and great accuracy RS-125 Super-Spec gamma spectrometer was utilized to perform radioactivity measurements on both minefields. Readings were recorded...
Development of a digital data acquisition system for fast neutron metrology
University of Cape Town (UCT): C. Sole, A. Buffler, T. Hutton, T. Leadbeater
Institut de radioprotection et de sûreté nucléaire (IRSN): V. Gressier, R. Babut, M. Petit
Fast neutron fields are found in a wide variety of contexts, for example at accelerator and medical radiation facilities, around nuclear power plants,...
Cosmic radiation consisting of Galactic Cosmic Rays (GCRs) and Solar Energetic Particles (SEPs), and their associated secondary particles are a known radiation hazard for high altitude flights, satellites, and space operations. Solar energetic particles result from highly unpredictable space weather events, releasing a large number of high energy protons and alpha particles over short periods...
LaBr$_3$:Ce (2" x 2") detectors were used to measure soil samples placed in Marinelli beakers in singles and coincidence modes. Time-stamped data were acquired and background removed offline by using photon time-of-flight in addition to measurement of the two photon energies in coincidence. Coincident gamma-ray pairs from $^{238}$U ($^{214}$Bi) and $^{232}$Th ($^{208}$Tl) series were...
Indoor radon measurements started in Cameroon since 2012 by measuring 222Rn using the Electret Ionization chambers (EIC) in about 500 dwellings of some ore bearing areas, followed by the discriminative measurements of 222Rn and 220Rn in 450 dwellings using RADUET detectors in some mining and ore bearing areas of Cameroon. The collected data helped to build a Technical Cooperation Project with...
