Induced Radioactivity of Materials by Stray Radiation Fields at an Electron Accelerator

Samples of soil, water, aluminum, copper and iron were irradiated in the stray radiation field generated by the interaction of a 28.5 GeV electron beam in a copper-dump in the Beam Dump East facility at SLAC. The specific activity induced in the samples was measured by gamma spectroscopy and other techniques. In addition, the isotope production in the samples was calculated with detailed Monte Carlo simulations using the FLUKA code. The calculated activities are compared to the experimental values and differences are discussed. ∗Work supported by Department of Energy contract DE-AC03-76SF00515 Induced Radioactivity of Materials by Stray Radiation Fields at an Electron Accelerator S. H. Rokni, a A. Fassò, b T. Gwise, a J. C. Liu, a S. Roesler a aStanford Linear Accelerator Center, MS. 48, 2575 Sand Hill Road, Menlo Park, California 94025, USA Tel.: +1-650-926-2048, Fax: +1-650-926-3569 Email: [email protected] bCERN-EP/AIP, CH-1211 Geneva 23, Switzerland