publications

2025

1. Sci. Rep.

   Formation of hot spots and arc ignition on tungsten with nano-tendril bundles under high-density hydrogen plasma exposure

   Dogyun Hwangbo, Shuangyuan Feng, Shin Kajita, Hirohiko Tanaka, Rongshi Zhang, Yuki Hayashi, Maria Morbey, Remco Timmer, Jordy Vernimmen, John Scholten, and Thomas Morgan

   Scientific Reports, 2025

   DOI Bib HTML

   @article{hwangbo2025formation,
     title = {Formation of hot spots and arc ignition on tungsten with nano-tendril bundles under high-density hydrogen plasma exposure},
     author = {Hwangbo, Dogyun and Feng, Shuangyuan and Kajita, Shin and Tanaka, Hirohiko and Zhang, Rongshi and Hayashi, Yuki and Morbey, Maria and Timmer, Remco and Vernimmen, Jordy and Scholten, John and Morgan, Thomas},
     journal = {Scientific Reports},
     volume = {15},
     number = {1},
     pages = {7903},
     year = {2025},
     publisher = {Nature Publishing Group UK London},
     doi = {10.1038/s41598-025-92412-y},
     dimensions = {true},
   }

2. Materialia

   Formation of micro-pillars on W by He plasma irradiation with N2/Ar impurities

   Rongshi Zhang, Shin Kajita, Dogyun Hwangbo, Hirohiko Tanaka, Yuta Yamamoto, and Noriyasu Ohno

   Materialia, 2025

   DOI Bib HTML

   @article{zhang2025formation,
     title = {Formation of micro-pillars on W by He plasma irradiation with N2/Ar impurities},
     author = {Zhang, Rongshi and Kajita, Shin and Hwangbo, Dogyun and Tanaka, Hirohiko and Yamamoto, Yuta and Ohno, Noriyasu},
     journal = {Materialia},
     pages = {102341},
     year = {2025},
     publisher = {Elsevier},
     doi = {10.1016/j.mtla.2025.102341},
     dimensions = {true},
   }

3. Nucl. Mater. Energy

   Trapping and release of deuterium in helium-induced tungsten fuzz at low temperature

   K Saito, D Hwangbo, M Miyamoto, H Yoshida, R Sasaki, S Murakami, and M Sakamoto

   Nuclear Materials and Energy, 2025

   DOI Bib HTML

   @article{saito2025trapping,
     title = {Trapping and release of deuterium in helium-induced tungsten fuzz at low temperature},
     author = {Saito, K and Hwangbo, D and Miyamoto, M and Yoshida, H and Sasaki, R and Murakami, S and Sakamoto, M},
     journal = {Nuclear Materials and Energy},
     pages = {101859},
     year = {2025},
     publisher = {Elsevier},
     doi = {10.1016/j.nme.2024.101859},
     dimensions = {true},
   }

2024

1. Nucl. Mater. Energy

   In-vessel inspection of arc traces on the W7-X plasma facing components after the operation phase OP2.1

   D Hwangbo, CP Dhard, S Kajita, D Naujoks, Y Gao, and others

   Nuclear Materials and Energy, 2024

   DOI Bib HTML

   @article{hwangbo2024vessel,
     title = {In-vessel inspection of arc traces on the W7-X plasma facing components after the operation phase OP2.1},
     author = {Hwangbo, D and Dhard, CP and Kajita, S and Naujoks, D and Gao, Y and others},
     journal = {Nuclear Materials and Energy},
     pages = {101846},
     year = {2024},
     publisher = {Elsevier},
     doi = {10.1016/j.nme.2024.101846},
     dimensions = {true},
   }

2. Nucl. Mater. Energy

   Utilization of D2 molecular band emission for electron density measurement

   D Nishijima, MJ Baldwin, F Chang, D Hwangbo, and GR Tynan

   Nuclear Materials and Energy, 2024

   DOI Bib HTML

   @article{nishijima2024utilization,
     title = {Utilization of D2 molecular band emission for electron density measurement},
     author = {Nishijima, D and Baldwin, MJ and Chang, F and Hwangbo, D and Tynan, GR},
     journal = {Nuclear Materials and Energy},
     volume = {41},
     pages = {101796},
     year = {2024},
     publisher = {Elsevier},
     doi = {10.1016/j.nme.2024.101727},
     dimensions = {true},
   }

3. Nucl. Mater. Energy

   Operating voltage of a W-fuzz cathode arc and the mass/charge composition of the arc plasma depending on the fuzz thickness

   SA Barengolts, Yu A Zemskov, DL Shmelev, D Hwangbo, and S Kajita

   Nuclear Materials and Energy, 2024

   DOI Bib HTML

   @article{barengolts2024operating,
     title = {Operating voltage of a W-fuzz cathode arc and the mass/charge composition of the arc plasma depending on the fuzz thickness},
     author = {Barengolts, SA and Zemskov, Yu A and Shmelev, DL and Hwangbo, D and Kajita, S},
     journal = {Nuclear Materials and Energy},
     pages = {101727},
     year = {2024},
     publisher = {Elsevier},
     doi = {10.1016/j.nme.2024.101727},
     dimensions = {true},
   }

4. Nucl. Fusion

   Overview of the first Wendelstein 7-X long pulse campaign with fully water-cooled plasma facing components

   O Grulke, C Albert, JA Alcuson Belloso, P Aleynikov, K Aleynikova, A Alonso, G Anda, T Andreeva, M Arvanitou, E Ascasibar, and others

   Nuclear Fusion, 2024

   DOI Bib HTML

   @article{grulke2024overview,
     title = {Overview of the first Wendelstein 7-X long pulse campaign with fully water-cooled plasma facing components},
     author = {Grulke, O and Albert, C and Belloso, JA Alcuson and Aleynikov, P and Aleynikova, K and Alonso, A and Anda, G and Andreeva, T and Arvanitou, M and Ascasibar, E and others},
     journal = {Nuclear Fusion},
     volume = {64},
     number = {11},
     pages = {112002},
     year = {2024},
     publisher = {IOP Publishing},
     doi = {10.1088/1741-4326/ad2f4d},
     dimensions = {true},
   }

2023

1. Mater. Res. Express

   Field emission properties of nano-tendril bundles formed via helium plasma exposure with various additional impurity gases

   Rongshi Zhang, Shin Kajita, Dogyun Hwangbo, Hirohiko Tanaka, Shuangyuan Feng, and Noriyasu Ohno

   Materials Research Express, 2023

   DOI Bib HTML

   @article{zhang2023field,
     title = {Field emission properties of nano-tendril bundles formed via helium plasma exposure with various additional impurity gases},
     author = {Zhang, Rongshi and Kajita, Shin and Hwangbo, Dogyun and Tanaka, Hirohiko and Feng, Shuangyuan and Ohno, Noriyasu},
     journal = {Materials Research Express},
     volume = {10},
     number = {5},
     pages = {054002},
     year = {2023},
     publisher = {IOP Publishing},
     doi = {10.1088/2053-1591/acd1d4},
     dimensions = {true},
   }

2. Nucl. Mater. Energy

   Arc erosion characteristics of W-fuzz samples with different thicknesses of the nanostructured layer

   Sergey A. Barengolts, Dogyun Hwangbo, and Shin Kajita

   Nuclear Materials and Energy, 2023

   DOI Bib HTML

   @article{barengolts2023arc,
     title = {Arc erosion characteristics of {W-fuzz} samples with different thicknesses of the nanostructured layer},
     author = {Barengolts, Sergey A. and Hwangbo, Dogyun and Kajita, Shin},
     journal = {Nuclear Materials and Energy},
     volume = {37},
     pages = {101541},
     year = {2023},
     publisher = {Elsevier},
     doi = {10.1016/j.nme.2023.101541},
     dimensions = {true},
   }

2022

1. Plasma Fusion Res.

   Motion analysis of arc spots on tungsten fuzz by means of self-avoiding random walk model

   Dogyun Hwangbo, Daisuke Nishijima, Shin Kajita, and Noriyasu Ohno

   Japanese Journal of Applied Physics, 2022

   DOI Bib HTML

   @article{hwangbo2022motion,
     title = {Motion analysis of arc spots on tungsten fuzz by means of self-avoiding random walk model},
     author = {Hwangbo, Dogyun and Nishijima, Daisuke and Kajita, Shin and Ohno, Noriyasu},
     journal = {Japanese Journal of Applied Physics},
     volume = {62},
     number = {SA},
     pages = {SA1007},
     year = {2022},
     publisher = {IOP Publishing},
     doi = {10.35848/1347-4065/ac79fe},
     dimensions = {true},
   }

2. Plasma Fus. Res.

   Effect of Deuterium Fluence on Deuterium Retention in Tungsten with Fibrous Nanostructured Layer in a Compact Plasma Device APSEDAS

   Takahisa Sakai, Dogyun Hwangbo, Naoki Orikasa, Mikoto Kusumoto, Katsutomo Takatsu, Haru Yoshida, Aoi Fujimori, Ryusei Nitta, and Mizuki Sakamoto

   Plasma and Fusion Research, 2022

   DOI Bib HTML

   @article{sakai2022effect,
     title = {Effect of Deuterium Fluence on Deuterium Retention in Tungsten with Fibrous Nanostructured Layer in a Compact Plasma Device {APSEDAS}},
     author = {Sakai, Takahisa and Hwangbo, Dogyun and Orikasa, Naoki and Kusumoto, Mikoto and Takatsu, Katsutomo and Yoshida, Haru and Fujimori, Aoi and Nitta, Ryusei and Sakamoto, Mizuki},
     journal = {Plasma and Fusion Research},
     volume = {17},
     pages = {2405062--2405062},
     year = {2022},
     publisher = {The Japan Society of Plasma Science and Nuclear Fusion Research},
     doi = {10.1585/pfr.17.2405062},
     dimensions = {true},
   }

3. Nucl. Mater. Energy

   Changes in morphology and field emission property of nano-tendril bundles after high temperature annealing

   Rongshi Zhang, Shin Kajita, Dogyun Hwangbo, Dmitry Sinelnikov, Hirohiko Tanaka, and Noriyasu Ohno

   Nuclear Materials and Energy, 2022

   DOI Bib HTML

   @article{zhang2022changes,
     title = {Changes in morphology and field emission property of nano-tendril bundles after high temperature annealing},
     author = {Zhang, Rongshi and Kajita, Shin and Hwangbo, Dogyun and Sinelnikov, Dmitry and Tanaka, Hirohiko and Ohno, Noriyasu},
     journal = {Nuclear Materials and Energy},
     volume = {31},
     pages = {101178},
     year = {2022},
     publisher = {Elsevier},
     doi = {10.1016/j.nme.2022.101178},
     dimensions = {true},
   }

2021

1. J. Plasma Fusion Res.

   Status and prospects of arcing in the magnetic confinement fusion studies

   Dogyun Hwangbo

   Journal of Plasma and Fusion Research (Japanese), 2021

   Bib HTML

   @article{hwangbo2021status,
     title = {Status and prospects of arcing in the magnetic confinement fusion studies},
     author = {Hwangbo, Dogyun},
     journal = {Journal of Plasma and Fusion Research (Japanese)},
     volume = {97},
     number = {4},
     pages = {221--228},
     year = {2021},
     dimensions = {true},
   }

2. Vacuum

   Nano-tendril bundles behavior under plasma-relevant electric fields

   VV Kulagin, DN Sinelnikov, DG Bulgadaryan, NE Efimov, VA Kurnaev, D Hwangbo, N Ohno, and S Kajita

   Vacuum, 2021

   DOI Bib HTML

   @article{kulagin2021nano,
     title = {Nano-tendril bundles behavior under plasma-relevant electric fields},
     author = {Kulagin, VV and Sinelnikov, DN and Bulgadaryan, DG and Efimov, NE and Kurnaev, VA and Hwangbo, D and Ohno, N and Kajita, S},
     journal = {Vacuum},
     volume = {183},
     pages = {109799},
     year = {2021},
     publisher = {Pergamon},
     doi = {10.1016/j.vacuum.2020.109799},
     dimensions = {true},
   }

3. Plasma Fusion Res.

   Observation of Arc Trails with Significant Damage due to Glow Discharge Wall Conditioning in the Large Helical Device

   Yuki Hayashi, Suguru Masuzaki, Gen Motojima, Dogyun Hwangbo, Yutaka Fujiwara, Mingzhong Zhao, LHD Experiment Group, and others

   Plasma and Fusion Research, 2021

   DOI Bib HTML

   @article{hayashi2021observation,
     title = {Observation of Arc Trails with Significant Damage due to Glow Discharge Wall Conditioning in the Large Helical Device},
     author = {Hayashi, Yuki and Masuzaki, Suguru and Motojima, Gen and Hwangbo, Dogyun and Fujiwara, Yutaka and Zhao, Mingzhong and Group, LHD Experiment and others},
     journal = {Plasma and Fusion Research},
     volume = {16},
     pages = {1202061--1202061},
     year = {2021},
     publisher = {The Japan Society of Plasma Science and Nuclear Fusion Research},
     doi = {10.1016/j.nme.2020.100843},
     dimensions = {true},
   }

4. Phys. Scr.

   Plasma-wall interaction studies in W7-X: main results from the recent divertor operations

   CP Dhard, S Brezinsek, M Mayer, D Naujoks, S Masuzaki, D Zhao, R Yi, J Oelmann, K Schmid, J Romazanov, and others

   Physica Scripta, 2021

   DOI Bib HTML

   @article{dhard2021plasma,
     title = {Plasma-wall interaction studies in {W7-X}: main results from the recent divertor operations},
     author = {Dhard, CP and Brezinsek, S and Mayer, M and Naujoks, D and Masuzaki, S and Zhao, D and Yi, R and Oelmann, J and Schmid, K and Romazanov, J and others},
     journal = {Physica Scripta},
     volume = {96},
     number = {12},
     pages = {124059},
     year = {2021},
     publisher = {IOP Publishing},
     doi = {10.1016/j.nme.2020.100843},
     dimensions = {true},
   }

5. Plasma Fusion Res.

   Influence of Nitrogen Ratio on Plasma Detachment during Combined Seeding with Hydrogen on Divertor Simulation Experiment of GAMMA 10/PDX

   Hiroki Gamo, Naomichi Ezumi, Tsukasa Sugiyama, Kunpei Nojiri, Ayane Kondo, Mafumi Hirata, Junko Kohagura, Masayuki Yoshikawa, Yousuke Nakashima, Dogyun Hwangbo, and others

   Plasma and Fusion Research, 2021

   DOI Bib HTML

   @article{gamo2021influence,
     title = {Influence of Nitrogen Ratio on Plasma Detachment during Combined Seeding with Hydrogen on Divertor Simulation Experiment of {GAMMA 10/PDX}},
     author = {Gamo, Hiroki and Ezumi, Naomichi and Sugiyama, Tsukasa and Nojiri, Kunpei and Kondo, Ayane and Hirata, Mafumi and Kohagura, Junko and Yoshikawa, Masayuki and Nakashima, Yousuke and Hwangbo, Dogyun and others},
     journal = {Plasma and Fusion Research},
     volume = {16},
     pages = {2402041--2402041},
     year = {2021},
     publisher = {The Japan Society of Plasma Science and Nuclear Fusion Research},
     doi = {10.1585/pfr.16.2402041},
     dimensions = {true},
   }

6. Plasma Fusion Res.

   Enhancement of Arc Ignition on Tungsten in Helium Plasmas with Impurity Gases

   Rongshi Zhang, Shin Kajita, Dogyun Hwangbo, Hirohiko Tanaka, and Noriyasu Ohno

   Plasma and Fusion Research, 2021

   DOI Bib HTML

   @article{zhang2021enhancement,
     title = {Enhancement of Arc Ignition on Tungsten in Helium Plasmas with Impurity Gases},
     author = {Zhang, Rongshi and Kajita, Shin and Hwangbo, Dogyun and Tanaka, Hirohiko and Ohno, Noriyasu},
     journal = {Plasma and Fusion Research},
     volume = {16},
     pages = {2405069--2405069},
     year = {2021},
     publisher = {The Japan Society of Plasma Science and Nuclear Fusion Research},
     doi = {10.1585/pfr.16.2405069},
     dimensions = {true},
   }

7. J. Nucl. Mater

   The effects of impurity gas seeding on the growth of fuzzy tungsten

   Patrick McCarthy, Dogyun Hwangbo, Shin Kajita, and James W Bradley

   Journal of Nuclear Materials, 2021

   DOI Bib HTML

   @article{mccarthy2021effects,
     title = {The effects of impurity gas seeding on the growth of fuzzy tungsten},
     author = {McCarthy, Patrick and Hwangbo, Dogyun and Kajita, Shin and Bradley, James W},
     journal = {Journal of Nuclear Materials},
     volume = {556},
     pages = {153125},
     year = {2021},
     publisher = {North-Holland},
     doi = {10.1016/j.jnucmat.2021.153125},
     dimensions = {true},
   }

2020

1. Plasma Fusion Res.

   Inspection of Arc Trails formed in stellarator/heliotron devices W7-X and LHD

   Dogyun Hwangbo, Shin Kajita, Chandra Prakash Dhard, Masayuki Tokitani, Marco Krause, Dirk Naujoks, Suguru Masuzaki, Sören Klose, Noriyasu Ohno, and others

   Plasma and Fusion Research, 2020

   DOI Bib HTML

   @article{hwangbo2020inspection,
     title = {Inspection of Arc Trails formed in stellarator/heliotron devices {W7-X} and {LHD}},
     author = {Hwangbo, Dogyun and Kajita, Shin and Dhard, Chandra Prakash and Tokitani, Masayuki and Krause, Marco and Naujoks, Dirk and Masuzaki, Suguru and Klose, S{\"o}ren and Ohno, Noriyasu and others},
     journal = {Plasma and Fusion Research},
     volume = {15},
     pages = {2402012--2402012},
     year = {2020},
     publisher = {The Japan Society of Plasma Science and Nuclear Fusion Research},
     doi = {10.1585/pfr.15.2402012},
     dimensions = {true},
   }

2. Plasma Sources Sci. Technol.

   Unipolar arc plasmas on nanostructured tungsten surfaces under perpendicular magnetic field

   Dogyun Hwangbo, Daisuke Nishijima, Shin Kajita, Russell P Doerner, and Noriyasu Ohno

   Plasma Sources Science and Technology, 2020

   DOI Bib HTML

   @article{hwangbo2020unipolar,
     title = {Unipolar arc plasmas on nanostructured tungsten surfaces under perpendicular magnetic field},
     author = {Hwangbo, Dogyun and Nishijima, Daisuke and Kajita, Shin and Doerner, Russell P and Ohno, Noriyasu},
     journal = {Plasma Sources Science and Technology},
     volume = {29},
     number = {12},
     pages = {125015},
     year = {2020},
     publisher = {IOP Publishing},
     doi = {10.1088/1361-6595/abc817},
     dimensions = {true},
   }

3. Phys. Scr.

   Inspection of W7-X plasma-facing components after the operation phase OP1.2b: observations and first assessments

   CP Dhard, S Äkäslompolo, M Balden, J Baldzuhn, C Biedermann, T Bräuer, S Brezinsek, M Endler, Y Hayashi, D Hwangbo, and others

   Physica Scripta, 2020

   DOI Bib HTML

   @article{dhard2020inspection,
     title = {Inspection of {W7-X} plasma-facing components after the operation phase {OP1.2b}: observations and first assessments},
     author = {Dhard, CP and {\"A}k{\"a}slompolo, S and Balden, M and Baldzuhn, J and Biedermann, C and Br{\"a}uer, T and Brezinsek, S and Endler, M and Hayashi, Y and Hwangbo, D and others},
     journal = {Physica Scripta},
     volume = {2020},
     number = {T171},
     pages = {014033},
     year = {2020},
     publisher = {IOP Publishing},
     doi = {10.1088/1402-4896/ab4b3f},
     dimensions = {true},
   }

4. Nucl. Fusion

   Enhanced fuzzy tungsten growth in the presence of tungsten deposition

   Patrick McCarthy, Dogyun Hwangbo, Matthew Bilton, Shin Kajita, and James W Bradley

   Nuclear Fusion, 2020

   DOI Bib HTML

   @article{mccarthy2020enhanced,
     title = {Enhanced fuzzy tungsten growth in the presence of tungsten deposition},
     author = {McCarthy, Patrick and Hwangbo, Dogyun and Bilton, Matthew and Kajita, Shin and Bradley, James W},
     journal = {Nuclear Fusion},
     volume = {60},
     number = {2},
     pages = {026012},
     year = {2020},
     publisher = {IOP Publishing},
     doi = {10.1088/1741-4326/ab6060},
     dimensions = {true},
   }

5. Nucl. Fusion

   Dynamics of the changes in the parameters of the arc plasma during the destruction of a helium-induced tungsten fuzz by arc pulses

   SA Barengolts, D Hwangbo, S Kajita, N Ohno, VP Frolova, AG Nikolaev, EM Oks, DL Shmelev, MM Tsventoukh, and G Yu Yushkov

   Nuclear Fusion, 2020

   DOI Bib HTML

   @article{barengolts2020dynamics,
     title = {Dynamics of the changes in the parameters of the arc plasma during the destruction of a helium-induced tungsten fuzz by arc pulses},
     author = {Barengolts, SA and Hwangbo, D and Kajita, S and Ohno, N and Frolova, VP and Nikolaev, AG and Oks, EM and Shmelev, DL and Tsventoukh, MM and Yushkov, G Yu},
     journal = {Nuclear Fusion},
     volume = {60},
     number = {4},
     pages = {044001},
     year = {2020},
     publisher = {IOP Publishing},
     doi = {10.1088/1741-4326/ab73c3},
     dimensions = {true},
   }

6. Phys. Scr.

   Helium irradiation effects on the surface modification and recrystallization of tungsten

   Aneeqa Khan, Gregory De Temmerman, Shin Kajita, Henri Greuner, M Balden, K Hunger, N Ohno, D Hwangbo, Y Tomita, M Tokitani, and others

   Physica Scripta, 2020

   DOI Bib HTML

   @article{khan2020helium,
     title = {Helium irradiation effects on the surface modification and recrystallization of tungsten},
     author = {Khan, Aneeqa and De Temmerman, Gregory and Kajita, Shin and Greuner, Henri and Balden, M and Hunger, K and Ohno, N and Hwangbo, D and Tomita, Y and Tokitani, M and others},
     journal = {Physica Scripta},
     volume = {2020},
     number = {T171},
     pages = {014050},
     year = {2020},
     publisher = {IOP Publishing},
     doi = {10.1088/1402-4896/ab52c6},
     dimensions = {true},
   }

7. Nucl. Mater. Energy

   Size distribution of nano-tendril bundles with various additional impurity gases

   Rongshi Zhang, Dogyun Hwangbo, Shin Kajita, Hirohiko Tanaka, and Noriyasu Ohno

   Nuclear Materials and Energy, 2020

   DOI Bib HTML

   @article{zhang2020size,
     title = {Size distribution of nano-tendril bundles with various additional impurity gases},
     author = {Zhang, Rongshi and Hwangbo, Dogyun and Kajita, Shin and Tanaka, Hirohiko and Ohno, Noriyasu},
     journal = {Nuclear Materials and Energy},
     volume = {25},
     pages = {100843},
     year = {2020},
     publisher = {Elsevier},
     doi = {10.1016/j.nme.2020.100843},
     dimensions = {true},
   }

2019

1. IEEE TPS

   Ignition and sustainment of arcing on nanostructured tungsten under plasma exposure

   Dogyun Hwangbo, Daisuke Nishijima, Shin Kajita, Russell P Doerner, Sergey A Barengolts, Mikhail M Tsventoukh, Hirohiko Tanaka, and Noriyasu Ohno

   IEEE Transactions on Plasma Science, 2019

   DOI Bib HTML

   @article{hwangbo2019ignition,
     title = {Ignition and sustainment of arcing on nanostructured tungsten under plasma exposure},
     author = {Hwangbo, Dogyun and Nishijima, Daisuke and Kajita, Shin and Doerner, Russell P and Barengolts, Sergey A and Tsventoukh, Mikhail M and Tanaka, Hirohiko and Ohno, Noriyasu},
     journal = {IEEE Transactions on Plasma Science},
     volume = {47},
     number = {8},
     pages = {3617--3625},
     year = {2019},
     publisher = {IEEE},
     doi = {10.1109/TPS.2019.2910839},
     dimensions = {true},
   }

2. Nucl. Mater. Energy

   Growth process of nano-tendril bundles with sputtered tungsten

   Dogyun Hwangbo, Shin Kajita, Hirohiko Tanaka, and Noriyasu Ohno

   Nuclear Materials and Energy, 2019

   DOI Bib HTML

   @article{hwangbo2019growth,
     title = {Growth process of nano-tendril bundles with sputtered tungsten},
     author = {Hwangbo, Dogyun and Kajita, Shin and Tanaka, Hirohiko and Ohno, Noriyasu},
     journal = {Nuclear Materials and Energy},
     volume = {18},
     pages = {250--257},
     year = {2019},
     publisher = {Elsevier},
     doi = {10.1016/j.nme.2019.01.008},
     dimensions = {true},
   }

3. Nucl. Mater. Energy

   Influence of heavier impurity deposition on surface morphology development and sputtering behavior explored in multiple linear plasma devices

   D Nishijima, A Kreter, MJ Baldwin, D Borodin, A Eksaeva, D Hwangbo, S Kajita, M Miyamoto, N Ohno, M Patino, and others

   Nuclear materials and energy, 2019

   DOI Bib HTML

   @article{nishijima2019influence,
     title = {Influence of heavier impurity deposition on surface morphology development and sputtering behavior explored in multiple linear plasma devices},
     author = {Nishijima, D and Kreter, A and Baldwin, MJ and Borodin, D and Eksaeva, A and Hwangbo, D and Kajita, S and Miyamoto, M and Ohno, N and Patino, M and others},
     journal = {Nuclear materials and energy},
     volume = {18},
     pages = {67--71},
     year = {2019},
     publisher = {Elsevier},
     doi = {10.1016/j.nme.2018.12.008},
     dimensions = {true},
   }

4. IEEE TPS

   Ignition and behavior of arc spots on helium irradiated tungsten under fusion relevant condition

   Shin Kajita, Dogyun Hwangbo, and Noriyasu Ohno

   IEEE Transactions on Plasma Science, 2019

   DOI Bib HTML

   @article{kajita2019ignition,
     title = {Ignition and behavior of arc spots on helium irradiated tungsten under fusion relevant condition},
     author = {Kajita, Shin and Hwangbo, Dogyun and Ohno, Noriyasu},
     journal = {IEEE Transactions on Plasma Science},
     volume = {47},
     number = {8},
     pages = {3609--3616},
     year = {2019},
     publisher = {IEEE},
     doi = {10.1109/TPS.2019.2908193},
     dimensions = {true},
   }

5. IEEE TPS

   Field emission from nanostructured tendril bundles

   Dmitry Sinelnikov, Daniel Bulgadaryan, Dogyun Hwangbo, Shin Kajita, Valery Kurnaev, and Noriyasu Ohno

   IEEE Transactions on Plasma Science, 2019

   DOI Bib HTML

   @article{sinelnikov2019field,
     title = {Field emission from nanostructured tendril bundles},
     author = {Sinelnikov, Dmitry and Bulgadaryan, Daniel and Hwangbo, Dogyun and Kajita, Shin and Kurnaev, Valery and Ohno, Noriyasu},
     journal = {IEEE Transactions on Plasma Science},
     volume = {47},
     number = {11},
     pages = {5186--5190},
     year = {2019},
     publisher = {IEEE},
     doi = {10.1109/TPS.2019.2942725},
     dimensions = {true},
   }

2018

1. Contrib. Plasma Phys.

   Ignition and erosion of materials by arcing in fusion-relevant conditions

   Dogyun Hwangbo, Shin Kajita, Sergey A Barengolts, Mikhail M Tsventoukh, Shota Kawaguchi, Vadim G Mesyats, and Noriyasu Ohno

   Contributions to Plasma Physics, 2018

   DOI Bib HTML

   @article{hwangbo2018ignition,
     title = {Ignition and erosion of materials by arcing in fusion-relevant conditions},
     author = {Hwangbo, Dogyun and Kajita, Shin and Barengolts, Sergey A and Tsventoukh, Mikhail M and Kawaguchi, Shota and Mesyats, Vadim G and Ohno, Noriyasu},
     journal = {Contributions to Plasma Physics},
     volume = {58},
     number = {6-8},
     pages = {608--615},
     year = {2018},
     publisher = {WILEY-VCH Verlag GmbH \& Co. KGaA Weinheim},
     doi = {10.1002/ctpp.201700157},
     dimensions = {true},
   }

2. Nucl. Fusion

   Growth of nano-tendril bundles on tungsten with impurity-rich He plasmas

   Dogyun Hwangbo, Shin Kajita, Noriyasu Ohno, Patrick McCarthy, James W Bradley, and Hirohiko Tanaka

   Nuclear Fusion, 2018

   DOI Bib HTML

   @article{hwangbo2018growth,
     title = {Growth of nano-tendril bundles on tungsten with impurity-rich {He} plasmas},
     author = {Hwangbo, Dogyun and Kajita, Shin and Ohno, Noriyasu and McCarthy, Patrick and Bradley, James W and Tanaka, Hirohiko},
     journal = {Nuclear Fusion},
     volume = {58},
     number = {9},
     pages = {096022},
     year = {2018},
     publisher = {IOP Publishing},
     doi = {10.1088/1741-4326/aacd1f},
     dimensions = {true},
   }

3. Plasma. Fusion Res.

   Pulsation effects of incident ion energy on W fuzz growth

   Shin Kajita, Shota Kawaguchi, Dogyun Hwangbo, Hirohiko Tanaka, and Noriyasu Ohno

   Plasma and Fusion Research, 2018

   DOI Bib HTML

   @article{kajita2018pulsation,
     title = {Pulsation effects of incident ion energy on W fuzz growth},
     author = {Kajita, Shin and Kawaguchi, Shota and Hwangbo, Dogyun and Tanaka, Hirohiko and Ohno, Noriyasu},
     journal = {Plasma and Fusion Research},
     volume = {13},
     pages = {1205001--1205001},
     year = {2018},
     publisher = {The Japan Society of Plasma Science and Nuclear Fusion Research},
     doi = {10.1585/pfr.13.1205001},
     dimensions = {true},
   }

4. Nucl. Instrum. Methods Phys. Res. B

   Proton scattering from tungsten fuzz

   D Bulgadaryan, D Sinelnikov, V Kurnaev, S Kajita, D Hwangbo, and N Ohno

   Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 2018

   DOI Bib HTML

   @article{bulgadaryan2018proton,
     title = {Proton scattering from tungsten fuzz},
     author = {Bulgadaryan, D and Sinelnikov, D and Kurnaev, V and Kajita, S and Hwangbo, D and Ohno, N},
     journal = {Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms},
     volume = {434},
     pages = {9--12},
     year = {2018},
     publisher = {North-Holland},
     doi = {10.1016/j.nimb.2018.07.038},
     dimensions = {true},
   }

5. IEEE TPS

   Effect of the nanostructured layer thickness on the dynamics of cathode spots on tungsten

   Sergey A Barengolts, Vadim G Mesyats, Mikhail M Tsventoukh, Shin Kajita, Dogyun Hwangbo, and Noriyasu Ohno

   IEEE Transactions on Plasma Science, 2018

   DOI Bib HTML

   @article{barengolts2018effect,
     title = {Effect of the nanostructured layer thickness on the dynamics of cathode spots on tungsten},
     author = {Barengolts, Sergey A and Mesyats, Vadim G and Tsventoukh, Mikhail M and Kajita, Shin and Hwangbo, Dogyun and Ohno, Noriyasu},
     journal = {IEEE Transactions on Plasma Science},
     volume = {46},
     number = {11},
     pages = {4044--4050},
     year = {2018},
     publisher = {IEEE},
     doi = {10.1109/TPS.2018.2859953},
     dimensions = {true},
   }

2017

1. Nucl. Mater. Energy

   Erosion of nanostructured tungsten by laser ablation, sputtering and arcing

   Dogyun Hwangbo, Shota Kawaguchi, Shin Kajita, and Noriyasu Ohno

   Nuclear Materials and Energy, 2017

   DOI Bib HTML

   @article{hwangbo2017erosion,
     title = {Erosion of nanostructured tungsten by laser ablation, sputtering and arcing},
     author = {Hwangbo, Dogyun and Kawaguchi, Shota and Kajita, Shin and Ohno, Noriyasu},
     journal = {Nuclear Materials and Energy},
     volume = {12},
     pages = {386--391},
     year = {2017},
     publisher = {Elsevier},
     doi = {10.1016/j.nme.2017.03.004},
     dimensions = {true},
   }

2. IEEE TPS

   Field emission from metal surfaces irradiated with helium plasmas

   Dogyun Hwangbo, Shin Kajita, Noriyasu Ohno, and Dmitry Sinelnikov

   IEEE Transactions on Plasma Science, 2017

   DOI Bib HTML

   @article{hwangbo2017field,
     title = {Field emission from metal surfaces irradiated with helium plasmas},
     author = {Hwangbo, Dogyun and Kajita, Shin and Ohno, Noriyasu and Sinelnikov, Dmitry},
     journal = {IEEE Transactions on Plasma Science},
     volume = {45},
     number = {8},
     pages = {2080--2086},
     year = {2017},
     publisher = {IEEE},
     doi = {10.1109/TPS.2017.2679211},
     dimensions = {true},
   }

2016

1. Sci. Rep.

   Fuzzy nanostructure growth on Ta/Fe by He plasma irradiation

   Shin Kajita, Tomoya Ishida, Noriyasu Ohno, Dogyun Hwangbo, and Tomoko Yoshida

   Scientific Reports, 2016

   DOI Bib HTML

   @article{kajita2016fuzzy,
     title = {Fuzzy nanostructure growth on {Ta/Fe} by He plasma irradiation},
     author = {Kajita, Shin and Ishida, Tomoya and Ohno, Noriyasu and Hwangbo, Dogyun and Yoshida, Tomoko},
     journal = {Scientific Reports},
     volume = {6},
     number = {1},
     pages = {30380},
     year = {2016},
     publisher = {Nature Publishing Group UK London},
     doi = {10.1038/srep30380},
     dimensions = {true},
   }

2. J. Phys. Conf. Ser.

   Arc tracks on nanostructured surfaces after microbreakdowns

   D Sinelnikov, D Bulgadaryan, Dogyun Hwangbo, S Kajita, D Kolodko, V Kurnaev, and N Ohno

   Journal of Physics: Conference Series, 2016

   DOI Bib HTML

   @article{sinelnikov2016arc,
     title = {Arc tracks on nanostructured surfaces after microbreakdowns},
     author = {Sinelnikov, D and Bulgadaryan, D and Hwangbo, Dogyun and Kajita, S and Kolodko, D and Kurnaev, V and Ohno, N},
     journal = {Journal of Physics: Conference Series},
     volume = {748},
     number = {1},
     pages = {012012},
     year = {2016},
     organization = {IOPscience},
     doi = {10.1088/1742-6596/748/1/012012},
     dimensions = {true},
   }

2014

1. Results Phys.

   Transition in velocity and grouping of arc spot on different nanostructured tungsten electrodes

   Dogyun Hwangbo, Shin Kajita, Sergey A Barengolts, Mikhail M Tsventoukh, and Noriyasu Ohno

   Results in Physics, 2014

   DOI Bib HTML

   @article{hwangbo2014transition,
     title = {Transition in velocity and grouping of arc spot on different nanostructured tungsten electrodes},
     author = {Hwangbo, Dogyun and Kajita, Shin and Barengolts, Sergey A and Tsventoukh, Mikhail M and Ohno, Noriyasu},
     journal = {Results in Physics},
     volume = {4},
     pages = {33--39},
     year = {2014},
     publisher = {Elsevier},
     doi = {10.1016/j.rinp.2014.03.001},
     dimensions = {true},
   }

2. J. Appl. Phys.

   Arc spot grouping: An entanglement of arc spot cells

   Shin Kajita, Dogyun Hwangbo, Noriyasu Ohno, Mikhail M Tsventoukh, and Sergey A Barengolts

   Journal of Applied Physics, 2014

   DOI Bib HTML

   @article{kajita2014arc,
     title = {Arc spot grouping: An entanglement of arc spot cells},
     author = {Kajita, Shin and Hwangbo, Dogyun and Ohno, Noriyasu and Tsventoukh, Mikhail M and Barengolts, Sergey A},
     journal = {Journal of Applied Physics},
     volume = {116},
     number = {23},
     year = {2014},
     publisher = {AIP Publishing},
     doi = {10.1063/1.4904917},
     dimensions = {true},
   }

2013

1. Jpn. J. Appl. Phys.

   Spectroscopic study and motion analysis of arc spot initiated on nanostructured tungsten

   Dogyun Hwangbo, Shin Kajita, Masashi Osaka, and Noriyasu Ohno

   Japanese Journal of Applied Physics, 2013

   DOI Bib HTML

   @article{hwangbo2013spectroscopic,
     title = {Spectroscopic study and motion analysis of arc spot initiated on nanostructured tungsten},
     author = {Hwangbo, Dogyun and Kajita, Shin and Osaka, Masashi and Ohno, Noriyasu},
     journal = {Japanese Journal of Applied Physics},
     volume = {52},
     number = {11S},
     pages = {11NC02},
     year = {2013},
     publisher = {IOP Publishing},
     doi = {10.7567/JJAP.52.11NC02},
     dimensions = {true},
   }