03 Novel Particle Sources and Acceleration Technologies
A20 Radioactive Ions
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TUPML077 Development of Physical Processes in Geant4 for Simulation of ISOL Target-Ion-Source System 1724
  • P. Lee, Y.-S. Cho, J.J. Dang, H.S. Kim, H.-J. Kwon, S. Lee, Y.G. Song, S.P. Yun
    Korea Atomic Energy Research Institute (KAERI), Gyeongbuk, Republic of Korea
  Funding: This work has been supported through KOMAC operation fund of KAERI and the NRF of Korea grant funded by the Korea government (MSIT) (No. NRF-2017M2A2A6A02071070).
Geant4 physical processes for simulating diffusion and effusion of radioactive ions in matter have been developed for optimizing ISOL target-ion-source (TIS) system. The developed processes simulate motions of radioactive ions with sub-eV kinetic energy in the TIS geometry. The processes consist of diffusion, effusion, and radioactive decay modules, and they are designed to work seamlessly with other implemented physics lists, extending capability of the Geant4 toolkit to more complicated applications in the field of nuclear physics. The diffusion probability is analytically calculated by using the well-known Fick's formula. The effusive flow of neutral atoms is interpreted in terms of kinetic molecular theory of gases, where the interaction between atoms and the wall of a target container is described by employing Lorentz-Lambert model. By the help of newly implemented processes, it is able to simulate the release of radioactive ions from the irradiation of a proton beam on the TIS system with different geometrical parameters in a single environment. Here, we present the status of the development and plans for further improvements.
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2018-TUPML077  
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Radioactive Ion Beams: A Global Overview of Facilities and New Techniques  
  • A. Gottberg
    TRIUMF, Vancouver, Canada
  The family of Radioactive Ion Beam (RIB) facilities is growing and gaining capabilities with new projects in preparation at RISP (Korea), INFN-LNL (SPES), GSI (FAIR) and expanding facilities at ISAC (ARIEL), NSCL (FRIB), ISOLDE (HIE-Isolde), RIKEN (RIBF), ANL (Caribu) and others. The programs are based on the ISOL or fragmentation production techniques with added capabilities of gas-stopping and reacceleration for the fragment approach and the fragmentation of reaccelerated RIBs produced using the ISOL technique. Physics programs are broad with increasing interest in the development of theranostic ions for medical applications. This invited talk will give an overview of the global progress in developments and accelerator physics at radioactive beam facilities.  
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