Zobrazeno 1 - 10
of 226
pro vyhledávání: '"Won Namkung"'
Autor:
Won Namkung, Moo-Hyun Cho, Lena Delpech, Jong-Gu Kwak, Jongwon Han, Julien Hillairet, Sonjong Wang, Jeehyun Kim
Publikováno v:
Fusion Engineering and Design. 144:29-39
A prototype of a midplane passive active multijunction (PAM) antenna was fabricated for the lower hybrid current drive system of KSTAR. The antenna includes a PAM launcher, bidirectional couplers, power dividing components, and two RF windows. The RF
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::de8eeda8de3a8b9e3dc09750ddcb55ab
https://doi.org/10.1016/j.fusengdes.2019.04.045
https://doi.org/10.1016/j.fusengdes.2019.04.045
Publikováno v:
Fusion Engineering and Design. 139:142-147
In this study, a klystron for the KSTAR lower hybrid current drive (LHCD) system was developed as a prototype for a 5 GHz, 500 kW CW operation that is aimed to meet the requirement of the ITER LHCD system as well. Before the 2012 KSTAR campaign, the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1b44ecb7f0c7e1cda732e3d87c923b0c
https://doi.org/10.1016/j.fusengdes.2019.01.024
https://doi.org/10.1016/j.fusengdes.2019.01.024
Autor:
Sung-Gyun Shin, S. Kopecky, Yong-Uk Kye, Won Namkung, Gui Nyun Kim, Peter Schillebeeckx, Moo-Hyun Cho, C. Paradela
Publikováno v:
The European Physical Journal A. 56
Neutron capture yields for $$^{{155}}\hbox {Gd}$$, $$^{{156}}\hbox {Gd}$$, $$^{{157}}\hbox {Gd}$$, $$^{{158}}\hbox {Gd}$$, and $$^{{160}}\hbox {Gd}$$ were determined applying the total energy detection principle technique using four $$\hbox {C}_{{6}}
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::87f6aa9edd96791a3f532b7ac1a57011
https://doi.org/10.1140/epja/s10050-020-00047-6
https://doi.org/10.1140/epja/s10050-020-00047-6
Publikováno v:
Journal of the Korean Physical Society. 73:1163-1169
As large-scale scientific facilities develop, the klystron efficiency becomes an important issue to reduce high operating costs. We are developing high-efficiency klystrons for the Pohang Light Source-II (PLS-II) and the Pohang Accelerator Laboratory
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b94abe02c85ef3f55b766c94b673b7b1
https://doi.org/10.3938/jkps.73.1163
https://doi.org/10.3938/jkps.73.1163
Publikováno v:
Journal of the Korean Physical Society. 73:1042-1048
When the thermionic electron gun of the klystron operates, the structure around the cathode is subjected to thermal deformation due to the high operating temperature of the cathode. A thermal deformation analysis of the existing electron gun with ‘
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::14558a0362d249f24ab9adc6caf4317a
https://doi.org/10.3938/jkps.73.1042
https://doi.org/10.3938/jkps.73.1042
Publikováno v:
Fusion Engineering and Design. 135:132-140
A major upgrade of KSTAR LHCD system to 4 MW is planned for 2021. The system will be composed of eight 5-GHz 500-kW klystrons, low loss transmission lines with oversized circular waveguides, and a passive active multijunction launcher. Circular TE01
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::11790ac932a188a797233c4e3d0b2f1d
https://doi.org/10.1016/j.fusengdes.2018.07.022
https://doi.org/10.1016/j.fusengdes.2018.07.022
Publikováno v:
Thin Solid Films. 660:380-385
A grid electrode assisted plasma based ion implantation system, which was originally designed only for ion implantation on insulator substrates, was investigated as a system of sputter deposition with high energy ion beam irradiation. When pulses of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ccb79be344a59fe0c5ba869a20d6f318
https://doi.org/10.1016/j.tsf.2018.06.025
https://doi.org/10.1016/j.tsf.2018.06.025
Publikováno v:
2019 International Vacuum Electronics Conference (IVEC).
In order to suppress beam losses and radiations in high-power klystrons, the electron beam should be desinged to have the scalloping (i.e., the radial oscillation of beam envelope) as small as possible. This is done by matching the focusing field pro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eb61bb56a09f75979e597cd74efc5a47
https://doi.org/10.1109/ivec.2019.8744777
https://doi.org/10.1109/ivec.2019.8744777
Autor:
K. Terada, Won Namkung, G. N. Kim, Yong-Uk Kye, M. W. Lee, Moo-Hyun Cho, Tae-Ik Ro, Y. R. Kang, Tatsuya Katabuchi, Sung-Gyun Shin, J E Lee
Publikováno v:
The European Physical Journal A. 54
Neutron capture yields of dysprosium isotopes (161Dy, 162Dy, 163Dy, and 164Dy) were measured using the time-of-flight method with a NaI(Tl) spectrometer locate at 27.9m from the spallation neutron target in the ANNRI beamline at the Materials and Lif
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::20c1c502db1c50d53247d5a424866df6
https://doi.org/10.1140/epja/i2018-12653-8
https://doi.org/10.1140/epja/i2018-12653-8
Publikováno v:
Nuclear Science and Engineering. 183:286-297
Measurements of neutron total cross sections of palladium in the energy region from 0.2 to 120 eV have been performed by using the time-of-flight method at the Pohang Neutron Facility. A group of h...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cdf7a540d76f847f379f02eae63f5c88
https://doi.org/10.13182/nse15-64
https://doi.org/10.13182/nse15-64