Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Youngdo Joo"'
Autor:
Changbum Kim, Sung-Ju Park, Chang-Ki Min, Jinyul Hu, Sang-Hee Kim, Youngdo Joo, Hoon Heo, Dong-Eon Kim, Sojeong Lee, Heung-Sik Kang, In Soo Ko, Moonsik Chae, Jaehyun Lee
Publikováno v:
AAPPS Bulletin, Vol 32, Iss 1, Pp 1-12 (2022)
Abstract The X-ray Free Electron Laser of Pohang Accelerator Laboratory (PAL-XFEL) was opened for the user in 2017. PAL-XFEL was the third XFEL facility in the world and well known for the small timing jitter of FEL radiation. This success was possib
Externí odkaz:
https://doaj.org/article/a349c249ffa246abbb10f675d4a01571
Autor:
Youngdo Joo, Younguk Sohn, Sehwan Park, Mujin Lee, Junghoon Kim, Yongseok Lee, Mooneon Lee, Insoo Park
Publikováno v:
Journal of Instrumentation. 17:T08002
The Pohang Light Source-II (PLS-II) is a synchrotron user-service facility that should provide a user-service period of 190 days per year with stable operation. A series of beam dump problems related to the superconducting radio-frequency (SRF) syste
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4d29de5a964b7d6ff33f038e5707628b
https://doi.org/10.1088/1748-0221/17/08/t08002
https://doi.org/10.1088/1748-0221/17/08/t08002
Publikováno v:
Journal of the Korean Physical Society. 73:1147-1152
At Pohang Light Source (PLS)-II, superconducting RF cavities, which are used energy compensators and make up for the energy loss by emitting synchrotron radiation were developed for the high-brightness photon beam, which has a brightness two orders o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cd3d8c2ed6d930fe4c3d5f6522685bfe
https://doi.org/10.3938/jkps.73.1147
https://doi.org/10.3938/jkps.73.1147
Autor:
Seunghwan Kim, Woonha Hwang, Jiwan Ryu, Young-Ki Cho, Sungju Noh, Jae-Young Choi, Youngdo Joo
Publikováno v:
Journal of the Korean Physical Society. 71:802-806
A prototype of RF window was developed in collaboration with the Pohang Accelerator Laboratory (PAL) and domestic companies. High power performance tests of the single RF window were conducted at PAL to verify the operational characteristics for its
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::04bc8b4d8f476bd056d827aa44b84267
https://doi.org/10.3938/jkps.71.802
https://doi.org/10.3938/jkps.71.802
Autor:
Seunghwan Kim, Youngdo Joo, Byung-Joon Lee, Sungjoo Roh, Woonha Hwang, Hyung-Sup Kong, Jiwan Ryu
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 866:1-8
For stable high-power operation, a new RF window is developed in the S-band linear accelerator (Linac) RF systems of the Pohang Light Source-II (PLS-II) and the Pohang Accelerator Laboratory X-ray Free-Electron Laser (PAL-XFEL). The new RF window is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6596b3d3258a7d320c87d8d208556d24
https://doi.org/10.1016/j.nima.2017.05.031
https://doi.org/10.1016/j.nima.2017.05.031
Autor:
Hoon Heo, Sungju Noh, Kyoungmin Oh, Yongjung Park, Heung-Sik Kang, Sang-Hee Kim, KwangHoon Kim, Youngdo Joo, Sung-Soo Park, Jinyul Heo, Heung-Soo Lee
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 843:50-60
In order to achieve beam acceleration to the beam energy of 10 GeV at the end of its 716 m-long linear accelerator (Linac), the Pohang Accelerator Laboratory X-ray Free Electron Laser (PAL-XFEL) is going to operate the Stanford Linear Accelerator Ene
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1cda33f7ee3f950da83080917f5410cd
https://doi.org/10.1016/j.nima.2016.11.005
https://doi.org/10.1016/j.nima.2016.11.005
Publikováno v:
Journal of the Korean Physical Society. 69:1070-1080
A new RF window is designed for high-power operation at the Pohang Light Source-II (PLSII) S-band linear accelerator (LINAC) RF system. In order to reduce the strength of the electric field component perpendicular to the ceramic disk, which is common
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1d9a8fb25337eed3f1f8843194ed5cc8
https://doi.org/10.3938/jkps.69.1070
https://doi.org/10.3938/jkps.69.1070
Autor:
Youngdo Joo, Inha Yu, Insoo Park, Myunghwan Chun, Byung-Joon Lee, Ilmoon Hwang, Taekyun Ha, Seunghwan Shin, Younguk Sohn
Publikováno v:
Journal of Applied Physics; 2014, Vol. 116 Issue 23, p233301-1-233301-7, 7p, 2 Diagrams, 7 Graphs
Autor:
Sungju Noh, Hyung-Seok Seo, Heung-Sik Kang, Yongjung Park, Kyoungmin Oh, Heung-Soo Lee, Youngdo Joo, Hoon Heo
Publikováno v:
Journal of the Korean Physical Society. 66:905-914
We developed an S-band traveling-wave accelerating structure for the Pohang Accelerator Laboratory’s X-ray free-electron laser (PAL-XFEL), and we fabricated and tested a full-scale prototype. In order to reduce the field asymmetry inside the couple
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b16e71d2f6bb280b6e62b86836ed0500
https://doi.org/10.3938/jkps.66.905
https://doi.org/10.3938/jkps.66.905
Autor:
Sang-Hee Kim, Sung-Joo Noh, Jinyul Heo, Young Jung Park, Soung-Soo Park, Heung-Sik Kang, Hiroshi Matsumoto, Yong Hwan Bak, Kyoungmin Oh, Kwang-Woo Kim, Woon Ha Hwang, Heung-Soo Lee, In Soo Ko, Hoon Heo, Youngdo Joo
Publikováno v:
Journal of the Korean Physical Society. 66:340-344
One hundred seventy-two accelerating structures are required for the Pohang Accelerator Laboratory X-ray free-electron laser’s (PAL-XFEL’s) 10-GeV main linear accelerator. So far, we have purchased 80 structures from Mitsubishi Heavy Industry (MH
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0b8cfa73e80ecce2a84e64b4877932b2
https://doi.org/10.3938/jkps.66.340
https://doi.org/10.3938/jkps.66.340