Estimating induced-activation of SCT barrel-modules in the ATLAS radiation environment.

One of the consequences of operating detector systems in the harsh radiation environments of the ATLAS inner-detector will be radioactivation of the components. If the levels of radioactivity and corresponding dose rates are significant, then there will be implications for any access or maintenance operations. Given in this note are predictions for the radioactivation of SCT barrel-modules in the expected radiation environment of the inner-detector, based on both calculations and measurements. It is shown that both neutron-capture and high-energy hadron reactions must be taken into account. The predictions show that, from a radiological point of view, the SCT barrel-modules should not pose any serious problems.