TY - CPAPER
AU - Ok, J.W.
AU - Bahng, J.
AU - Choi, S.
AU - Hong, J.G.
AU - Kim, S.J.
AU - Lee, B.S.
AU - Park, J.Y.
AU - Shin, C.S.
AU - Won, M.
AU - Yoon, J.H.
TI - A Diagnostics of Ion Beam from 28 GHz Electron Cyclotron Resonance Ion Source
J2 - Proc. of IBIC2014
AB - A neutron radiography facility utilizing a 28 GHz superconducting electron cyclotron resonance (ECR) ion source and a heavy ion accelerator is now under construction at Korea Basic Science Institute (KSBI). In order to generate a proper energy distribution of neutron, a lithium ion beam is considered. It will be accelerated up to the energy of 2.7 MeV/u by using a radio frequency quadrupole (RFQ) and drift tube linear (DTL) accelerator. The 28 GHz superconducting ECR ion source, which is the state of the art of an ion injector, has been built to produce the lithium ion beam. The ion beam of 12 keV/u would be extracted to low energy beam transport (LEBT) system, which is comprised of several types of electromagnets to focus and deliver the beam, effectively. After transporting an ion beam through LEBT, RFQ once accelerates the ion beam from 12 to 500 keV/u. Finally, we can achieve the final beam energy at the DTL. Before the ion beam is delivered to accelerator, the requirements should be satisfied to confirm the status of beam. For this, we developed the instruments in the diagnostic chamber in the middle of LEBT system to observe the beam dynamics. An analyzing electromagnet, slits, wire scanners and faraday cup will be used to perform a diagnosis of ion beam characteristics. We will present and discuss the experimental results of ion beam profile and the current after selecting a required charge state.
PB - JACoW
CY - Geneva, Switzerland
SP - 561
EP - 564
KW - ion
KW - diagnostics
KW - ECR
KW - ion-source
KW - emittance
DA - 2014/10
PY - 2014
SN - 978-3-95450-141-0
UR - http://jacow.org/IBIC2014/papers/wepf12.pdf
ER -