TY  - CONF
AU  - Kim, K.H.
AU  - Jeong, H.S.
AU  - Kim, H.S.
AU  - Kim, S.G.
AU  - Kwon, H.-J.
AU  - Song, Y.G.
ED  - Boland, Mark
ED  - Tanaka, Hitoshi
ED  - Button, David
ED  - Dowd, Rohan
ED  - Schaa, Volker RW
ED  - Tan, Eugene
TI  - RCCS Operation and Characteristics in Resonance Frequency Control Mode at KOMAC
J2  - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019
CY  - Melbourne, Australia
T2  - International Particle Accelerator Conference
T3  - 10
LA  - english
AB  - A 100-MeV proton accelerator is under operation at Korea Multi-purpose Accelerator Complex (KOMAC). The resonance control cooling system (RCCS) has supplied the cooling water to drift tube linac (DTL). The DTL need to keep the resonant frequency of 350MHz during the operation. RCCS has a critical role in sustaining the acceptable resonant frequency error in DTL by adopting the resonance frequency control mode. Details on the RCCS operation in resonance frequency control mode will be given in this study.
PB  - JACoW Publishing
CP  - Geneva, Switzerland
SP  - 1025
EP  - 1027
KW  - controls
KW  - resonance
KW  - DTL
KW  - operation
KW  - radio-frequency
DA  - 2019/06
PY  - 2019
SN  - 978-3-95450-208-0
DO  - DOI: 10.18429/JACoW-IPAC2019-MOPTS077
UR  - http://jacow.org/ipac2019/papers/mopts077.pdf
ER  - 

TY  - CONF
AU  - Lee, J.Y.
AU  - Buaphad, P.
AU  - Jeong, I.G.
AU  - Joo, Y.J.
AU  - Kim, Y.
AU  - Lee, H.R.
AU  - Lee, S.
ED  - Boland, Mark
ED  - Tanaka, Hitoshi
ED  - Button, David
ED  - Dowd, Rohan
ED  - Schaa, Volker RW
ED  - Tan, Eugene
TI  - Design of 1.5 GeV Compact Storage Ring for the EUV and Soft X-rays
J2  - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019
CY  - Melbourne, Australia
T2  - International Particle Accelerator Conference
T3  - 10
LA  - english
AB  - Recently, there has been discussions about the need for the next-generation synchrotron light source facility in Korea. The facility in consideration is composed of a super-conducting linear accelerator for the injector, a storage ring for the EUV and soft X-rays, and a main storage ring for hard X-rays. In this study, design concepts of the soft X-ray storage ring is presented. To effectively utilize the small space allocated for the soft X-ray storage ring, a compact storage ring is taken into account. The compact storage ring is a synchrotron accelerator of which diameter is shorter than the length of injector beamline. In this paper, we report design concepts and optimization of the compact storage ring for the EUV and soft X-ray users. The lattice of the storage ring is modelled by utilizing ELEGANT simulation code to optimize beam parameters and performance of the ring.
PB  - JACoW Publishing
CP  - Geneva, Switzerland
SP  - 1028
EP  - 1030
KW  - storage-ring
KW  - quadrupole
KW  - synchrotron
KW  - resonance
KW  - focusing
DA  - 2019/06
PY  - 2019
SN  - 978-3-95450-208-0
DO  - DOI: 10.18429/JACoW-IPAC2019-MOPTS079
UR  - http://jacow.org/ipac2019/papers/mopts079.pdf
ER  - 

TY  - CONF
AU  - Joo, Y.
AU  - Buaphad, P.
AU  - Kim, Y.
AU  - Lee, H.R.
AU  - Lee, J.Y.
AU  - Lee, S.
ED  - Boland, Mark
ED  - Tanaka, Hitoshi
ED  - Button, David
ED  - Dowd, Rohan
ED  - Schaa, Volker RW
ED  - Tan, Eugene
TI  - Design of 3 MeV S-band Electron Linac Structure With 2.5 Bunching Cells
J2  - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019
CY  - Melbourne, Australia
T2  - International Particle Accelerator Conference
T3  - 10
LA  - english
AB  - The Korea Atomic Energy Research Institute (KAERI) has been designing several 3 MeV S-band RF electron linear accelerators (linacs) for non-destructive testing. Until now, the bunching cell of the linac has a full-cell geometry. However, to maximize the acceleration of electrons after emission from the electron gun, the geometry of the first bunching cell is modified from a full-cell to a half cell. To accelerate electron beams more gently, recently, we increased the total number of bunching cells from 1.5 to 2.5. In this paper, we describe design concepts and detailed optimization processes of a 3 MeV linac with the 2.5 bunching cells to optimize RF parameters such as the quality factor, resonance frequency, and uniformity of electric field distribution along the linac. Lastly, we will discuss the application of 3 MeV linac.
PB  - JACoW Publishing
CP  - Geneva, Switzerland
SP  - 2934
EP  - 2936
KW  - electron
KW  - bunching
KW  - linac
KW  - coupling
KW  - simulation
DA  - 2019/06
PY  - 2019
SN  - 978-3-95450-208-0
DO  - DOI: 10.18429/JACoW-IPAC2019-WEPRB055
UR  - http://jacow.org/ipac2019/papers/weprb055.pdf
ER  - 

TY  - CONF
AU  - Buaphad, P.
AU  - Jeong, I.G.
AU  - Joo, Y.
AU  - Kim, Y.
AU  - Lee, H.R.
AU  - Lee, J.Y.
AU  - Park, H.D.
AU  - Song, S.
ED  - Boland, Mark
ED  - Tanaka, Hitoshi
ED  - Button, David
ED  - Dowd, Rohan
ED  - Schaa, Volker RW
ED  - Tan, Eugene
TI  - X-ray Dose Rate of 6/4 MeV European S-band Linac Structure for Industrial Application at RTX
J2  - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019
CY  - Melbourne, Australia
T2  - International Particle Accelerator Conference
T3  - 10
LA  - english
AB  - Recently, RTX has been developing a 6/4 MeV European S-band (= 2998 MHz) industrial linac by using a magnetron with a low RF power of about 3 MW for container inspection system (CIS). Its accelerating structure is designed to operate in π/2 mode by coupling 6 accelerating cells together through 5 side-coupled cells. In CIS, high dose rate X-rays from MeV-energy electron beam has been used to detect the possible presence of contrabands in cargoes or truck containers. To determine a dose rate output, the X-ray dose rate can be simulated by using FLUKA Monte Carlo simulation. The aim of this work was to study the effects of thickness of X-ray target on dose rate as well as X-ray dose map at 1.0 m away from the X-ray target. This study gives the thickness of target in which the dose rate can be highest and electron beam current can be lowest.
PB  - JACoW Publishing
CP  - Geneva, Switzerland
SP  - 3494
EP  - 3496
KW  - target
KW  - electron
KW  - linac
KW  - simulation
KW  - operation
DA  - 2019/06
PY  - 2019
SN  - 978-3-95450-208-0
DO  - DOI: 10.18429/JACoW-IPAC2019-THPMP021
UR  - http://jacow.org/ipac2019/papers/thpmp021.pdf
ER  - 

TY  - CONF
AU  - Dang, J.J.
AU  - Cho, Y.-S.
AU  - Kim, H.S.
AU  - Kwon, H.-J.
AU  - Lee, P.
AU  - Song, Y.G.
ED  - Boland, Mark
ED  - Tanaka, Hitoshi
ED  - Button, David
ED  - Dowd, Rohan
ED  - Schaa, Volker RW
ED  - Tan, Eugene
TI  - Fabrication of On-Line Test Facility of Li-8 Beam at KOMAC
J2  - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019
CY  - Melbourne, Australia
T2  - International Particle Accelerator Conference
T3  - 10
LA  - english
AB  - A Li-8 beam facility has been developed at KOMAC. A target/ion source (TIS) was fabricated, and heating experiment of a target heater and a surface ion source was conducted at off-line test site. Also, beam optics components were developed. They are utilized in Li-8 beam line that electrostatic steerers to adjust misalignment of the beam, Einzel lens to focus beam and Wien filter to separate Li-8. Furthermore, a high-energy beta-ray telescope detector was developed as a dedicated beta-decay spectrometer for diagnostics of the Li-8 beam. The TIS, the beam optics and the beam diagnostics are installed in a target room (TR104) of the 100-MeV proton linac. An experiment of the proton beam transportation into TR10⁴ and the TIS heating experiment were conducted separately. Finally, the on-line test of TIS has been conducted to generate Li-8 beam and examine the beam optics and the diagnostics.
PB  - JACoW Publishing
CP  - Geneva, Switzerland
SP  - 3697
EP  - 3699
KW  - target
KW  - optics
KW  - ion-source
KW  - proton
KW  - linac
DA  - 2019/06
PY  - 2019
SN  - 978-3-95450-208-0
DO  - DOI: 10.18429/JACoW-IPAC2019-THPGW049
UR  - http://jacow.org/ipac2019/papers/thpgw049.pdf
ER  -