Christian Theis (CERN)
4/28/14, 1:15 PM
The ActiWiz code has originally been developed at CERN for easy and quick assessment and comparison of the radiological hazard of materials used in the environment of high energy accelerators. Due to its foundations on nuclide production terms recent extensions have been developed to allow for an application also in the field of operational radiation protection. An isotope build-up and decay...
Lucia Sarchiapone (INFN)
4/28/14, 1:40 PM
SPES (Selective Production of Exotic Species) is a project of the INFN (Istituto Nazionale di Fisica Nucleare) for the production of radioactive ion beams, through direct irradiation of a fissile target with high intensity proton beams. The irradiation of the uranium carbide target with protons at 40 MeV energy and 200 uA current during an irradiation cycle of two weeks, causes an activity of...
Roberto Versaci (ELI-Beamlines)
4/28/14, 2:05 PM
ELI-Beamlines is one of the four pillars of the Extreme Light Infrastructure, a European ESFRI Project, for the next generation of high energy and high intensity lasers. It aims at the development of high-brightness sources of X-rays and at the acceleration of proton, electron, and ion beams, to be used both for pure research and practical applications. Aiming at a proper radiation...
39. Comparison of Radionuclide Activity in the NuMI Decay Pipe to Results from the MARS Monte Carlo Code
Diane Reitzner (FNAL)
4/28/14, 2:30 PM
The production of tritium is a radiological concern in the operation of accelerators as it has been show to be relatively mobile; able to move from one medium to another. Tritium produced in shielding could transfer to the environment under the right conditions. Having a reliable inventory on the amount of tritium that will be produced in the shielding is therefore important. The production...
14. Activation Products from Copper and Steel Samples Exposed to Showers Produced by 8 GeV Protons Lost at the Fermilab Main Injector Collimation System
Bruce C. Brown (Fermilab/Accelerator Div/Main Injector Dept)
4/28/14, 3:15 PM
In conjunction with efforts to predict residual radiation levels, measurements of residual radiation were correlated with the time history of losses. Detailed examination suggested that the list of radioactive isotopes used for fitting was incomplete. We will report on activation studies of magnet steel and copper samples which we irradiated adjacent to the Fermilab Main Injector collimation...
Peter Katrík (Technische Universität Darmstadt)
4/28/14, 3:40 PM
The activation of the high-energy heavy ion accelerators due to beam-losses is a serious issue for parts of accelerator as collimator systems, magnets, beam-line, fragment separator targets, etc. The beam-losses below 1 W/m are considered as a tolerable for “hands-on” maintenance on proton machines. In our previous studies FLUKA2008 code has been used for establishing a scaling law expanding...
28. Benchmarking of Neutron Radiation Effects Facility (NREF) at LENS for Neutron Science Facility (NSF) at the Future Heavy-Ion Accelerator in Korea
Sangjin Lee (Institute for Basic Science)
4/28/14, 4:05 PM
LENS is a novel, long pulsed neutron source located in the Center for Exploration of Energy and Matter (CEEM) of Indiana University and RAON is a heavy-ion accelerator complex that is being constructed in Korea. NREF at LENS utilizes a low energy p-N reaction between Beryllium target and a high-current, variable-pulse-width proton beam to produce Quasi monochromatic high flux neutron beams...
Daniela Kiselev (Paul Scherrer Institut)
4/28/14, 4:30 PM
The Paul Scherrer Institut operates a MW-class spallation source, SINQ, using the 590 MeV proton beam delivered by the ring cyclotron, HIPA. The target of the spallation source consists of a bundle of lead filled metal tubes (cannelloni). Five lead samples were extracted from a rod in the target center close to the beam entry window from SINQ target-4, which had been in operation in 2000/2001...
George Kharashvili (Jefferson Lab)
4/28/14, 4:55 PM
Activation of materials impacted by GeV electron beams is of great importance for the purposes of radiation protection as well as future decommissioning. In order to measure thin and thick target activation Al, Pb, Nb, Cu, and stainless steel foils (0.01 – 0.1 mm) were placed upstream and downstream of 1.25-cm thick tungsten alloy blocks and irradiated by 2.25 and 3.36 GeV electron beams. The...