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Chetvertkova, V.

Paper Title Page
MOPD65 Activation of Aluminium by Uranium 250
  • V. Chetvertkova, E. Mustafin
    GSI, Darmstadt
  • V. Chetvertkova, U. Ratzinger, I. Strašík
    IAP, Frankfurt am Main
  • L.N. Latysheva, N. Sobolevskiy
    RAS/INR, Moscow

The research into the activation of materials used for accelerator components is held in GSI as a part of studies of FAIR relevant materials. In the frame of these studies the project "Verification of Monte Carlo transport codes: FLUKA, MARS and SHIELD" was started. Series of irradiations were already done. This work presents the results of irradiation of aluminum target with uranium beam. Experimentally achieved depth profiles of residual activity and stopping range of primary ions are compared with Monte Carlo simulations. Correspondences and discrepancies of different codes with experiment are discussed.

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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