Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Yojong Choi"'
Publikováno v:
IEEE Access, Vol 11, Pp 68632-68642 (2023)
Coils excited for high magnetic fields have large discharging time constants owing to high inductance and low resistance for large operating currents. This type of coil requires a de-excitation system to reduce the current as quickly as possible when
Externí odkaz:
https://doaj.org/article/8899c17b69574872b6ebf28e1dcf7b5e
Publikováno v:
Applied Sciences, Vol 11, Iss 7, p 3074 (2021)
A cryogen-free portable 3 T high-temperature superconducting magnet for an electromagnetic property measurement system has been developed to serve as a user facility at the Korea Basic Science Institute. The metallic insulation method was adopted to
Externí odkaz:
https://doaj.org/article/8c4135121ee245a388de501d883fae60
Publikováno v:
Applied Sciences, Vol 10, Iss 1, p 223 (2019)
In this paper, a new method is presented for sensitive quench detection in high-temperature superconductor (HTS) rotating machinery. The normal zone propagation velocity of an HTS is about 1000 times slower than that of a low-temperature superconduct
Externí odkaz:
https://doaj.org/article/09e37627cc2b40bba542c67b50ed35c7
Publikováno v:
High Temperatures - High Pressures. 2022, Vol. 51 Issue 6, p501-507. 7p.
Autor:
MYUNG SU KIM1, YOJONG CHOI1, SEUNGHYUN SONG1, SEUNG-YOUNG PARK1, YEON SUK CHOI1 ychoi@kbsi.re.ki
Publikováno v:
High Temperatures - High Pressures. 2022, Vol. 51 Issue 6, p477-485. 9p.
Publikováno v:
IEEE Transactions on Power Delivery. 37:1100-1108
Publikováno v:
IEEE Transactions on Applied Superconductivity. 30:1-5
In recent years, a new quench protection system using capacitor and switches has been announced to rapidly extract energy from high temperature superconducting (HTS) magnets. When a quench occurs, the quench protection system activates four metal oxi
Autor:
Woo Seung Lee, Yojong Choi, Geonwoo Baek, Sangjin Lee, Kwang Myoung Park, Tae Kuk Ko, Junseong Kim
Publikováno v:
IEEE Transactions on Applied Superconductivity. 30:1-5
Quadruple magnets are used as superconducting magnets in accelerator systems and to focus the accelerated beam particles. Therefore, studies are being conducted to implement HTS quadruple magnets in hot cell regions that possess high heat loads in ac
Publikováno v:
IEEE Transactions on Applied Superconductivity. 29:1-5
The high-temperature superconducting magnets with high magnetic field can store a relatively large amount of energy because of their large inductance and operating current. The magnetic energy stored in the magnet is converted into heat energy when a
Autor:
Geonwoo Baek, Tae Kuk Ko, Seunghak Han, Yojong Choi, Jeyull Lee, Seunghyun Song, Junseong Kim
Publikováno v:
Cryogenics. 98:39-46
An high temperature superconducting (HTS) quadruple magnet used to focus and defocus beams in particle accelerator has been studied for overcoming the disadvantages of low temperature superconducting (LTS) quadruple magnet. LTS quadruple magnet is ha