Zobrazeno 1 - 10
of 92
pro vyhledávání: '"Jong-Seo Chai"'
Publikováno v:
Nuclear Engineering and Technology, Vol 56, Iss 10, Pp 4355-4364 (2024)
Fluid pipelines, commonly utilized in the oil industry, often face efficiency and reliability issues due to sediment buildup causing erosion, corrosion, and pipe wall thinning. Traditional assessment methods involve disruptive measures like cutting o
Externí odkaz:
https://doaj.org/article/b0124748964c421b95cf111b65807ba0
Autor:
Ho Namgoong, Hyojeong Choi, Mitra Ghergherehchi, Donghyup Ha, Mustafa Mumyapan, Jong-Seo Chai, Jongchul Lee, Hoseung Song
Publikováno v:
Nuclear Engineering and Technology, Vol 55, Iss 8, Pp 3114-3120 (2023)
A high-accuracy magnetic field measurement device based on a cyclotron is being developed for accelerator mass spectrometry (AMS). In this study, a magnetic field measurement device consisting of a Hall probe sensor, piezo-motor, and step motor was d
Externí odkaz:
https://doaj.org/article/175b3ad08be24b8fba0dec769e1978a8
Publikováno v:
Materials Research Express, Vol 9, Iss 10, p 105901 (2022)
CdZnTe is a promising material for room-temperature radiation semiconductor detectors. However, their radiation response performance might be deteriorated owing to defects within the material such as Te inclusions. This study employs the Cd thermal a
Externí odkaz:
https://doaj.org/article/796b05f3472b41e1b0deacb027a79abf
Publikováno v:
Energies, Vol 12, Iss 5, p 837 (2019)
The increased penetration of distributed generation (DG), renewable energy utilization, and the introduction of the microgrid concept have changed the shape of conventional electric power networks. Most of the new power system networks are transformi
Externí odkaz:
https://doaj.org/article/ffd6b51bdbfc4a4c8e2b3fe5ca1b713e
Autor:
Donghyup Ha, Hoseung Song, Mitra Ghergherehchi, Hyojeong Choi, Seung-wook Shin, Jongchul Lee, Ho Namgoong, Mustafa Mumyapan, Jong-Seo Chai
Publikováno v:
Journal of the Korean Physical Society. 82:731-739
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e3de13e56abd529d784c22e98ff580de
https://doi.org/10.1007/s40042-023-00731-y
https://doi.org/10.1007/s40042-023-00731-y
Autor:
Hyojeong Choi, Jong-Seo Chai
Publikováno v:
Journal of the Korean Physical Society. 82:236-243
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::063bf0771d77186a83ec05b840eba8b4
https://doi.org/10.1007/s40042-022-00661-1
https://doi.org/10.1007/s40042-022-00661-1
Autor:
Donghyup Ha, Seung-Hyun Lee, Khaled Gad, Berat Can Karatas, Mitra Ghergherehchi, Ho Namgoong, Ho Seung Song, JongChul Lee, Jong-Seo Chai
Publikováno v:
Journal of the Korean Physical Society. 79:857-863
The SKKUCY-10 cyclotron based on 83.2 MHz, 40 kV half-wave RF cavity was developed at Sungkyunkwan University for the production of medical radioisotopes. The resonant frequency $$f_{{{\text{RF}}}}$$ of the cyclotron and the RF coupling coefficient $
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ffde50b908f74abbb8902edebc21f24d
https://doi.org/10.1007/s40042-021-00246-4
https://doi.org/10.1007/s40042-021-00246-4
Autor:
Seyedeh Akram Salehi, Hossein AFARIDEH, Mohammad Saleh Sharifi Asadi, Mohammad Sadegh Rahimi, Mitra Ghergherehchi, Jong Seo Chai
In cyclotron accelerators, Digital Low-Level RF or DLLRF system plays a major role in the detection and control of the RF amplitude and phase which means it is necessary to utilize accurate, reliable, stable, and high-speed digital hardware. In this
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6473b213e91d92b4479b114a94257731
https://doi.org/10.21203/rs.3.rs-2088492/v1
https://doi.org/10.21203/rs.3.rs-2088492/v1
Autor:
Hyun Wook Kim, Mitra Ghergherehchi, Donghyup Ha, Hui Su Kim, Ho Namgoong, JongChul Lee, Yeong Heum Yeon, Jong-Seo Chai
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 468:71-80
A 10 MeV cyclotron named SKKUCY-10 was designed for production of radiopharmaceutical tracer in PET. The cyclotron consists of a sector-focused magnet, half-wavelength RF cavity and PIG ion source, and the 35° dee angle was selected to increase the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::479ae545fffc941218e708995d9d6919
https://doi.org/10.1016/j.nimb.2020.02.030
https://doi.org/10.1016/j.nimb.2020.02.030
Publikováno v:
Journal of the Korean Physical Society. 76:73-78
RF characteristics of unloaded quality factor (Q0) and accelerating electric field (Eacc) were measured for superconducting quarter-wave resonator (QWR) in order to verify the performance. For the accurate measurement of RF characteristics, the measu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8f4e42a16aeafdd76d54a8b22c245956
https://doi.org/10.3938/jkps.76.73
https://doi.org/10.3938/jkps.76.73