Abstract
Samples of copper, aluminium and stainless steel with well-characterized elemental compositions were irradiated in the stray radiation field created by a 2.5 GeV electron beam hitting a copper dump. After the irradiation the induced activity in the samples was analysed with gamma-ray spectrometry. The beam intensity monitoring with a current transformer was verified in an additional study by irradiating gold-foils stacked in between copper blocks and by analysing the production of Au for which detailed experimental cross section data exist. All results were finally compared to the predictions obtained with the FLUKA Monte-Carlo code. Excellent agreement between measurement and simulation within a few percent was obtained for the gold-foils irradiation confirming the accuracy of the beam monitoring. The benchmark of the FLUKA results with the data of the material samples showed good agreement, for many nuclides within 30%.
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