Search Results - "Kim, Changbum"

High-brightness self-seeded X-ray free-electron laser covering the 3.5 keV to 14.6 keV range by Nam, Inhyuk, Min, Chang-Ki, Oh, Bonggi, Kim, Gyujin, Na, Donghyun, Suh, Young Jin, Yang, Haeryong, Cho, Myung Hoon, Kim, Changbum, Kim, Min-Jae, Shim, Chi Hyun, Ko, Jun Ho, Heo, Hoon, Park, Jaehyun, Kim, Jangwoo, Park, Sehan, Park, Gisu, Kim, Seonghan, Chun, Sae Hwan, Hyun, HyoJung, Lee, Jae Hyuk, Kim, Kyung Sook, Eom, Intae, Rah, Seungyu, Shu, Deming, Kim, Kwang-Je, Terentyev, Sergey, Blank, Vladimir, Shvyd’ko, Yuri, Lee, Sang Jae, Kang, Heung-Sik

“…A self-seeded X-ray free-electron laser (XFEL) is a promising approach to realize bright, fully coherent free-electron laser (FEL) sources in the hard X-ray…”
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Generation of time-synchronized two-color X-ray free-electron laser pulses using phase shifters by Cho, Myung-Hoon, Kang, Teyoun, Yang, Haeryong, Kim, Gyujin, Kwon, Seong-Hoon, Moon, Kook-Jin, Nam, Inhyuk, Min, Chang-Ki, Heo, Hoon, Kim, Changbum, Kang, Heung-Sik, Shim, Chi Hyun

“…To optimize the intensity of X-ray free-electron lasers (XFELs), phase shifters, oriented in phase with the phases of the XFEL pulse and electron beam, are…”
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Statistical analysis of hard X‐ray radiation at the PAL‐XFEL facility performed by Hanbury Brown and Twiss interferometry by Kim, Young Yong, Khubbutdinov, Ruslan, Carnis, Jerome, Kim, Sangsoo, Nam, Daewoong, Nam, Inhyuk, Kim, Gyujin, Shim, Chi Hyun, Yang, Haeryong, Cho, Myunghoon, Min, Chang-Ki, Kim, Changbum, Kang, Heung-Sik, Vartanyants, Ivan A.

“…A Hanbury Brown and Twiss interferometry experiment based on second‐order correlations was performed at the PAL‐XFEL facility. The statistical properties of…”
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A non-destructive correlated energy spread monitor using multi-stripline electrodes for X-ray free electron lasers by Sung, Chang-Kyu, Shin, BokKyun, Chung, Moses, Nam, Inhyuk, Kim, Changbum

“…During X-ray free electron laser (XFEL) operation, electron beam parameters such as the correlated energy spread, which affects the self-amplified spontaneous…”
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Soft X-ray harmonic lasing self-seeded free electron laser at Pohang Accelerator Laboratory X-ray free electron laser by Nam, Inhyuk, Min, Chang-Ki, Kim, Changbum, Yang, Haeryong, Kim, Gyujin, Heo, Hoon, Kwon, Soonnam, Park, Sang Han, Kang, Heung-Sik

“…The demonstration of a harmonic lasing self-seeded free-electron laser (HLSS FEL) scheme in the soft X-ray range at the Pohang Accelerator Laboratory X-ray…”
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Construction and Commissioning of PAL-XFEL Facility by Ko, In, Kang, Heung-Sik, Heo, Hoon, Kim, Changbum, Kim, Gyujin, Min, Chang-Ki, Yang, Haeryong, Baek, Soung, Choi, Hyo-Jin, Mun, Geonyeong, Park, Byoung, Suh, Young, Shin, Dong, Hu, Jinyul, Hong, Juho, Jung, Seonghoon, Kim, Sang-Hee, Kim, KwangHoon, Park, Soung, Park, Yong, Jung, Young, Jeong, Seong, Lee, Hong, Lee, Sangbong, Lee, Sojeong, Oh, Bonggi, Suh, Hyung, Han, Jang-Hui, Kim, Min, Jung, Nam-Suk, Kim, Young-Chan, Lee, Mong-Soo, Lee, Bong-Ho, Sung, Chi-Won, Mok, Ik-Su, Yang, Jung-Moo, Parc, Yong, Lee, Woul-Woo, Lee, Chae-Soon, Shin, Hocheol, Kim, Ji, Kim, Yongsam, Lee, Jae, Park, Sang-Youn, Kim, Jangwoo, Park, Jaeku, Eom, Intae, Rah, Seungyu, Kim, Sunam, Nam, Ki Hyun, Park, Jaehyun, Park, Jaehun, Kim, Sangsoo, Kwon, Soonnam, An, Ran, Park, Sang, Kim, Kyung, Hyun, Hyojung, Kim, Seung, Kim, Seonghan, Yu, Chung-Jong, Kim, Bong-Soo, Kang, Tai-Hee, Kim, Kwang-Woo, Kim, Seung-Hwan, Lee, Hee-Seock, Lee, Heung-Soo, Park, Ki-Hyeon, Koo, Tae-Yeong, Kim, Dong-Eon, Lee, Ki

“…The construction of Pohang Accelerator Laboratory X-ray Free-Electron Laser (PAL-XFEL), a 0.1-nm hard X-ray free-electron laser (FEL) facility based on a…”
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Author Correction: High-brightness self-seeded X-ray free-electron laser covering the 3.5 keV to 14.6 keV range by Nam, Inhyuk, Min, Chang-Ki, Oh, Bonggi, Kim, Gyujin, Na, Donghyun, Suh, Young Jin, Yang, Haeryong, Cho, Myung Hoon, Kim, Changbum, Kim, Min-Jae, Shim, Chi Hyun, Ko, Jun Ho, Heo, Hoon, Park, Jaehyun, Kim, Jangwoo, Park, Sehan, Park, Gisu, Kim, Seonghan, Chun, Sae Hwan, Hyun, HyoJung, Lee, Jae Hyuk, Kim, Kyung Sook, Eom, Intae, Rah, Seungyu, Shu, Deming, Kim, Kwang-Je, Terentyev, Sergey, Blank, Vladimir, Shvyd’ko, Yuri, Lee, Sang Jae, Kang, Heung-Sik

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Hard X‐ray self‐seeding commissioning at PAL‐XFEL by Min, Chang-Ki, Nam, Inhyuk, Yang, Haeryong, Kim, Gyujin, Shim, Chi Hyun, Ko, Jun Ho, Cho, Myung-Hoon, Heo, Hoon, Oh, Bonggi, Suh, Young Jin, Kim, Min Jae, Na, Donghyun, Kim, Changbum, Kim, Yongsam, Chun, Sae Hwan, Lee, Jae Hyuk, Kim, Jangwoo, Kim, Sunam, Eom, Intae, Kim, Seung Nam, Koo, Tae-Yeong, Rah, Seungyu, Shvyd'ko, Yuri, Shu, Deming, Kim, Kwang-Je, Terentyev, Sergey, Blank, Vladimir, Kang, Heung-Sik

“…A wake monochromator based on a large‐area diamond single crystal for hard X‐ray self‐seeding has been successfully installed and commissioned in the hard…”
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Recent Progress of the PAL-XFEL by Eom, Intae, Chun, Sae Hwan, Lee, Jae Hyuk, Nam, Daewoong, Ma, Rory, Park, Jaehyun, Park, Sehan, Park, Sang Han, Yang, Haeryong, Nam, Inhyuk, Cho, Myung Hoon, Shim, Chi Hyun, Kim, Gyujin, Min, Chang-Ki, Heo, Hoon, Kang, Heung-Sik, Kim, Changbum

“…The X-ray free-electron laser of the Pohang Accelerator Laboratory (PAL-XFEL) was opened to users in 2017. Since then, significant progress has been made in…”
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Beam Position Monitor for the PAL-XFEL Laser Heater by Hong, Juho, Han, Jang-Hui, Kim, Changbum, Shin, Dongchul

“…A beam position monitor (BPM) has been developed to monitor the position of an electron beam in the laser heater of the X-ray free electron laser at the Pohang…”
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Review of technical achievements in PAL-XFEL by Kim, Changbum, Park, Sung-Ju, Min, Chang-Ki, Hu, Jinyul, Kim, Sang-Hee, Joo, Youngdo, Heo, Hoon, Kim, Dong-Eon, Lee, Sojeong, Kang, Heung-Sik, Ko, In Soo, Chae, Moonsik, Lee, Jaehyun

“…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…”
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Control Scheme of Phase-Shifter for Photon Energy Scan by Kim, Gyujin, Yang, Haeryong, Shim, Chi Hyun, Nam, Inhyuk, Cho, Myung Hoon, Heo, Hoon, Kim, Changbum, Min, Chang-Ki, Kang, Heung-Sik

“…Variable gap undulator widely used in X-ray free-electron laser (XFEL) enables the photon energy scan by changing its gap. A phase-shifter should be…”
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Beam emittance measurement for the PLS-II linac by Lee, Byung-Joon, Hwang, Ilmoon, Park, Chong do, Kim, Changbum, Chunjarean, SomJai

“…The second-generation Pohang Light Source (PLS-II) has a 100-MeV pre-injector for the 3-GeV linac. A thermionic gun produces an electron charge of 200 pC with…”
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Observation of coherent transition radiation in the prewave zone by Yim, Changmook, Ko, Junho, Jung, Seonghoon, Han, Daehoon, Kim, Changbum, Park, Jaehun, Kang, Heung-Sik, Ko, In Soo

“…Transition radiation generated from a relativistic electron beam is used as a tool for diagnostics of the beam. Also, it can be used as a source of femtosecond…”
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Two-dimensional simulation of photon acceleration by using laser wake fields by Lee, H.J., Changbum Kim, Hyyong Suk

“…Two-dimensional simulations of photon acceleration by using a laser wake field are presented with a fully electromagnetic and relativistic particle-in-cell…”
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High Power Beam Test and Measurement of Emittance Evolution of a 1.6-Cell Photocathode RF Gun at Pohang Accelerator Laboratory by Park, Jang-Ho, Park, Sung-Ju, Kim, Changbum, Parc, Yong-Woon, Hong, Ju-Ho, Huang, Jung-Yun, Xiang, Dao, Wang, Xijie, Ko, In Soo

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Hard X-ray free-electron laser with femtosecond-scale timing jitter by Kang, Heung-Sik, Min, Chang-Ki, Heo, Hoon, Kim, Changbum, Yang, Haeryong, Kim, Gyujin, Nam, Inhyuk, Baek, Soung Youl, Choi, Hyo-Jin, Mun, Geonyeong, Park, Byoung Ryul, Suh, Young Jin, Shin, Dong Cheol, Hu, Jinyul, Hong, Juho, Jung, Seonghoon, Kim, Sang-Hee, Kim, KwangHoon, Na, Donghyun, Park, Soung Soo, Park, Yong Jung, Han, Jang-Hui, Jung, Young Gyu, Jeong, Seong Hun, Lee, Hong Gi, Lee, Sangbong, Lee, Sojeong, Lee, Woul-Woo, Oh, Bonggi, Suh, Hyung Suck, Parc, Yong Woon, Park, Sung-Ju, Kim, Min Ho, Jung, Nam-Suk, Kim, Young-Chan, Lee, Mong-Soo, Lee, Bong-Ho, Sung, Chi-Won, Mok, Ik-Su, Yang, Jung-Moo, Lee, Chae-Soon, Shin, Hocheol, Kim, Ji Hwa, Kim, Yongsam, Lee, Jae Hyuk, Park, Sang-Youn, Kim, Jangwoo, Park, Jaeku, Eom, Intae, Rah, Seungyu, Kim, Sunam, Nam, Ki Hyun, Park, Jaehyun, Park, Jaehun, Kim, Sangsoo, Kwon, Soonam, Park, Sang Han, Kim, Kyung Sook, Hyun, Hyojung, Kim, Seung Nam, Kim, Seonghan, Hwang, Sun-min, Kim, Myong Jin, Lim, Chae-yong, Yu, Chung-Jong, Kim, Bong-Soo, Kang, Tai-Hee, Kim, Kwang-Woo, Kim, Seung-Hwan, Lee, Hee-Seock, Lee, Heung-Soo, Park, Ki-Hyeon, Koo, Tae-Yeong, Kim, Dong-Eon, Ko, In Soo

“…The hard X-ray free-electron laser at the Pohang Accelerator Laboratory (PAL-XFEL) in the Republic of Korea achieved saturation of a 0.144 nm free-electron…”
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Electron Injection by Evolution of Self-Modulated Laser Wakefields by Kim, Changbum, Kim, Guang-Hoon, Kim, Jong-Uk, Ko, In Soo, Lee, Hae June, Suk, Hyyong

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Experimental approaches for the beam dynamics study in the PC RF gun at the PAL by Jangho Park, Sung-Ju Park, Changbum Kim, Yong-Woon Parc, Jung Yun Huang, In Soo Ko, Dao Xiang

“…A high-brightness electron beam is emitted from a photo-cathode (PC) RF gun for use in the FIR (Far Infrared) facility being built at the Pohang Accelerator…”
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A 1.2V 1.33Gb/s/pin 8Tb NAND flash memory multi-chip package employing F-chip for low power and high performance storage applications by Hyun-Jin Kim, Youngdon Choi, Jangwoo Lee, Jindo Byun, Seungwoo Yu, Daehoon Na, Jungjune Park, Kwangwon Kim, Kavala, Anil, Youngmin Jo, Changbum Kim, Sunghoon Kim, Nahyun Kim, Jaehwan Kim, Bongkil Jung, Yena Lee, Chanjin Park, Hansung Joo, Kisung Kim, Yunhee Choi, Pansuk Kwak, Hyeonggon Kim, Jeong-Don Ihm, Dae-Seok Byeon, Jin-Yub Lee, Ki-Tae Park, Kye-Hyun Kyung

“…A 1.2 V 1.33Gb/s/pin 8Tb NAND flash memory multi-chip package incorporating 16-die stacked 512-Gb NAND flash memories and F-Chip is presented. To meet the…”
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