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Pavlovic, M.     [Pavlovič, M.]

Paper Title Page
WEO1B04 Beam-Loss Criteria for Heavy Ion Accelerators and Activation of Different Materials 463
  • I. Strašík, V. Chetvertkova, E. Mustafin
    GSI, Darmstadt
  • M. Pavlovič
    STU, Bratislava

Assessment of the radiation hazards from activated accelerator components due to beam-losses is a serious issue for high-energy hadron facilities. Important radiation-safety principle ALARA (As Low As Reasonably Achievable) calls for minimizing exposure to people. That is why the uncontrolled beam-losses must be kept on the reasonable low level. The beam-losses below 1 W/m are considered as a tolerable for “hands-on” maintenance on proton accelerators. The activation of the heavy-ion accelerators is in general lower than the activation of the proton machines. In our previous work, we estimated the "hands-on" maintenance criteria for heavy ions up to uranium in stainless steel and copper by scaling the existing criterion for protons. It was found out that the inventory of the isotopes and their relative activities do not depend on the primary-ion mass but depend on the target material. For this reason in the present work the activation of other important accelerator construction materials carbon and aluminum was studied using the FLUKA code.


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