低速陽電子実験施設

KEK

成果公表論文等

全反射高速陽電子回折(TRHEPD)関連
  • M. Dodenhöft, I. Mochizuki, K. Wada, T. Hyodo, P. Richter, P. Schädlich, T. Seyller, and C. Hugenschmidt, "Determination of the spacing between hydrogen-intercalated quasifreestanding monolayer graphene and 6H-SiC(0001) using total-reflection high-energy positron diffraction", Phys. Rev. B 108, 155438 (2023). https://doi.org/10.1103/PhysRevB.108.155438
  • Y. Fukaya, S. Entani, and S. Sakai, "Reversible structure change in graphene/metal interface by intercalation and deintercalation", Phys. Rev. B 108, 155422 (2023). https://doi.org/10.1103/PhysRevB.108.155422
  • 星健夫, 望月出海, 田中悟, 兵頭俊夫, 福島孝治 「全反射高速陽電子回折(TRHEPD)を用いた表面構造決定におけるデータ駆動型感度解析」. 陽電子科学会誌 21号,p.3-9 (2023)
  • K. Tanaka, I. Mochizuki, T. Hanada, A. Ichimiya, T. Hyodo, and T. Hoshi, "A two-stage data-analysis method for total-reflection high-energy positron diffraction (TRHEPD)", JJAP Conf. Proc. 9, 011301 (2023). https://doi.org/10.56646/jjapcp.9.0_0113 01
  • Y. Tsujikawa, M. Horio, X. Zhang, T. Senoo, T. Nakashima, Y. Ando, T. Ozaki, I. Mochizuki, K. Wada, T. Hyodo, T. Iimori, F. Komori, T. Kondo, and I. Matsuda, "Structural and electronic evidence of boron atomic chains", Phys. Rev. B 106, 205406 (2022). https://doi.org/10.1103/PhysRevB.106.205406
  • Y. Motoyama, K. Yoshimi, I. Mochizuki, H. Iwamoto, H. Ichinos, T. Hoshi, "Data-analysis software framework 2DMAT and its application to experimental measurements for two-dimensional material structures", Comput. Phys. Commun. 280, 108465 (2022). https://doi.org/10.1016/j.cpc.2022.108465 → プレスリリース(2022.07.29)
  • Y. Tsujikawa, M. Shouji, M. Hamada, T. Takeda, I. Mochizuki, T. Hyodo, I. Matsuda and A. Takayama, "Structure of χ3-Borophene studied by Total-reflection high-energy positron diffraction (TRHEPD)", Molecules 27, 4219 (2022). https://doi.org/10.3390/molecules27134219
  • T. Hanada, Y. Motoyama, K. Yoshimi, T. Hoshi, "sim-trhepd-rheed - Open-source simulator of total-reflection high-energy positron diffraction (TRHEPD) and reflection high-energy electron diffraction (RHEED)", Comput. Phys. Commun. 277, 108371 (2022). https://doi.org/10.1016/j.cpc.2022.108371
  • Y. Fukaya, Y. Zhao, H.-W. Kim, J. R. Ahn, H. Fukidome, and I. Matsuda, "Atomic arrangements of quasicrystal bilayer graphene: Interlayer distance expansion", Physical Review B 104, L180202-1-5 (2021). https://doi.org/10.1103/PhysRevB.104.L180202
  • 深谷有喜,吉信 淳,アントワーヌ・フロランス,高村(山田)由紀子「ZrB2(0001)薄膜表面上の二次元Ge二重三角格子」. PF News 39,No.3 (Nov. 2021) p.24-27 
  • T. Hoshi, D. Sakata, S. Oied, I. Mochizuki, S. Tanaka, T. Hyodo and K. Hukushima, "Data-driven sensitivity analysis in surface structure determination using total-reflection high-energy positron diffraction (TRHEPD)", Comp. Phys. Comm. 271, 108186 (2022), online published on 4 Oct. (2021). https://doi.org/10.1016/j.cpc.2021.108186 → プレスリリース(2021.11.24)
  • 遠藤由大,深谷有喜,望月出海,高山あかり,兵頭俊夫,長谷川修司「全反射高速陽電子回折(TRHEPD)によるCa挿入2層グラフェン超伝導材料の原子配列解明」. 陽電子科学会誌 16号,p.23-29.
  • A. Fleurence, C.-C. Lee, R. Friedlein, Y. Fukaya, S. Yoshimoto, K. Mukai, H. Yamane, N. Kosugi, J. Yoshinobu, T. Ozaki, and Y. Yamada-Takamura, "Emergence of nearly flat bands through a kagome lattice embedded in an epitaxial two-dimensional Ge layer with a bitriangular structure", Phys. Rev. B 102, 201102(R)-1-6 (2020). https://doi.org/10.1103/PhysRevB.102.201102
  • 遠藤由大,深谷有喜,望月出海,高山あかり,兵頭俊夫,長谷川修司「グラフェン超伝導材料の原子配列解析」. PF News 38,No.2 (Aug. 2020) p.9-14 
  • K. Tanaka, T. Hoshi, I. Mochizuki, T. Hanada, A. Ichimiya, and T. Hyodo, "Development of Data-Analysis Software for Total-Reflection High-Energy Positron Diffraction (TRHEPD)", Acta Physica Polonica A 137, 188-192 (2020). https://doi.org/10.12693/APhysPolA.137.188
  • Y. Endo, Y. Fukaya, I. Mochizuki, A. Takayama, T. Hyodo, S. Hasegawa, "Structure of superconducting Ca-intercalated bilayer Graphene/SiC studied using total-reflection high-energy positron diffraction" Carbon 157, 857-862 (2020) (Available online 25 October 2019). https://doi.org/10.1016/j.carbon.2019.10.070 → プレスリリース(2019.11.14) 
  • Y. Fukaya, A. Kawasuso, A. Ichimiya and T. Hyodo, "Total-reflection high-energy positron diffraction (TRHEPD) for structure determination of the topmost- and immediate sub-surface atomic layers" J. Phys. D: Appl. Phys. 52, 013002-1-19 (2019). https://doi.org/10.1088/1361-6463/aadf14
  • 兵頭俊夫,「全反射陽電子回折(TRHEPD)による表面構造解析」固体物理 53, 705 (2018年11月号 p141).
  • 望月出海, 有賀寛子, 深谷有喜, 和田健, 前川雅樹, 河裾厚男, 設楽哲夫, 朝倉清高 ,兵頭俊夫 「全反射高速陽電子回折(TRHEPD)法によるルチル型TiO2 (110) (1×2)表面の構造決定」, 表面科学 37, 451-456(2016).
  • 望月出海,深谷有喜,前川雅樹,河裾厚男,和田健,兵頭俊夫「低速陽電子実験装置を利用して: Ge(001)表面に形成されるPt吸着ナノワイヤー構造の原子配置と相転移」(物構研におけるマルチプローブ利用研究のすすめ ~陽電子,中性子,ミュオンを使って新しい世界を見てみよう~) PF News, Vol.31, No.4, 29-32 (2014).
  • 松田巌,深谷有喜「低速陽電子実験装置を利用して: 表面2次元電子化合物」(物構研におけるマルチプローブ利用研究のすすめ ~陽電子,中性子,ミュオンを使って新しい世界を見てみよう~) PF News, Vol.31, No.4, 33-37 (2014).
  • 朝倉清高,有賀寛子,望月出海,深谷有喜,和田健,兵頭俊夫「低速陽電子実験装置を利用して:反射高速陽電子回折(RHEPD)によるTiO2 (110) (1×2)表面の構造解析」(物構研におけるマルチプローブ利用研究のすすめ ~陽電子,中性子,ミュオンを使って新しい世界を見てみよう~) PF News, Vol.31, No.4, 38-41 (2014).
  • Y. Fukaya, I. Matsuda, B. Feng, I. Mochizuki, T. Hyodo, S. Shamoto, "Asymmetric structure of germanene on an Al(111) surface studied by total-reflection high-energy positron diffraction" 2D Materials 3, 035019 (2016). https://doi.org/10.1088/2053-1583/3/3/035019 → プレスリリース(2016.9.13) 
  • Y. Fukaya, S. Entani, S. Sakai, I. Mochizuki, K. Wada, T. Hyodo, S. Shamoto, "Spacing between graphene and metal substrates studied with total-reflection high-energy positron diffraction", Carbon, 103, 1, (2016). https://doi.org/10.1016/j.carbon.2016.03.006 → プレスリリース(2016.3.7) 
  • I. Mochizuki, H. Ariga, Y. Fukaya, K. Wada,M. Maekawa, A. Kawasuso, T. Shidara, K. Asakura, and T. Hyodo, "Structure determination of the rutile-TiO2(110)-(1 × 2) surface using total-reflection high-energy positron diffraction (TRHEPD)", Phys. Chem. Chem. Phys. 18, 7085 (2016). https://doi.org/10.1039/C5CP07892J → Chemistry World -News- 2016. 3. 24 → プレスリリース(2016.2.24) 
  • 深谷有喜・兵頭俊夫「ポジトロンビーム回折法による表面研究」,放射線と産業 139, 13 (2015).
  • 兵頭俊夫,「随筆 : 全反射高速陽電子回折」,エネルギーレビュー (12月号), 3 (2015).
  • Y. Fukaya, M. Maekawa, A. Kawasuso,I. Mochizuki, K. Wada, T. Shidara, A. Ichimiya, and T. Hyodo, "Total-reflection high-energy positron diffraction: An ideal diffraction technique for surface structure analysis", Appl. Phys. Express 7, 056601-1-4 (2014). https://doi.org/10.7567/APEX.7.056601 → プレスリリース(2014.4.21)
  • T. Hyodo, Y. Fukaya, M. Maekawa, I. Mochizuki, K. Wada, T. Shidara, A. Ichimiya, and A. Kawasuso, "Total reflection high-energy positron diffraction (TRHEPD)", J. Phys.: Conf. Ser. 505, 012001-1-5 (2014). https://doi.org/10.1088/1742-6596/505/1/012001
  • Y. Fukaya, M. Maekawa, I. Mochizuki, K. Wada, T. Hyodo, and A. Kawasuso, "Reflection high-energy positron diffraction study on the first surface layer", J. Phys. Conf. Ser. 505, 012005-1-6 (2014). https://doi.org/10.1088/1742-6596/505/1/012005
  • Y. Fukaya, I. Mochizuki, M. Maekawa, K. Wada, T. Hyodo, I. Matsuda, and A. Kawasuso, "Structure of silicene on a Ag(111) surface studied by reflection high-energy positron diffraction" Phys. Rev. B 88, 205413-1-4 (2013). https://doi.org/10.1103/PhysRevB.88.205413 → プレスリリース(2013.11.21)
  • Y. Fukaya, M. Maekawa, Mochizuki, K. Wada, T. Hyodo, and A. Kawasuso, "Reflection high-energy positron diffraction: the past 15 years and the future", J. Phys.: Conf. Ser. 443, 012068 (2013). https://doi.org/10.1088/1742-6596/443/1/012068
  • I. Mochizuki, Y. Fukaya, A. Kawasuso, K. Yaji, A. Harasawa, I. Matsuda, K. Wada, T. Hyodo, "Atomic configuration and phase transition of Pt-induced nanowires on a Ge(001) surface studied using scanning tunneling microscopy, reflection high-energy positron diffraction, and angle-resolved photoemission spectroscopy", Phys. Rev. B 85, 245438 (2012). https://doi.org/10.1103/PhysRevB.85.245438
低速陽電子回折(LEPD)関連
  • K. Wada, T. Shirasawa, I. Mochizuki, M. Fujinami, M. Maekawa and A. Kawasuso, "Observation of Low-Energy Positron Diffraction Patterns with a Linac-Based Slow-Positron Beam", e-J. Surf. Sci. Nanotech. 16, 313-319 (2018). https://doi.org/10.1380/ejssnt.2018.313
  • K. Wada, T. Shirasawa, I. Mochizuki, M. Fujinami, T. Takahashi, M. Maekawa, A. Kawasuso, M. Kimura, and T. Hyodo, "Progress report on construction of a low-energy positron diffraction (LEPD) experiment station at KEK", JJAP Conf. Proc. 7, 011301-1-6 (2018). https://doi.org/10.7567/JJAPCP.7.011301
低速陽電子実験汎用ステーション関連
  • K. Shu, K. Yamada, K. Hashidate, A. Ishida, T. Namba, S. Asai, M. Kuwata-Gonokami, Y. Tajima, E. Chae, K. Yoshioka, N. Oshima, B. E. O'Rourke, K. Michishio, K. Ito, K. Kumagai, R. Suzuki, S. Fujino, T. Hyodo, I. Mochizuki, K. Wada and T. Kai, "Development of a porous silica cavity for laser excitation of confined positronium", JJAP Conf. Proc. 9, 011202 (2023). https://doi.org/10.56646/jjapcp.9.0_011202
  • K. Michishio, S. Kuma, Y. Nagata, L. Chiari, T. Iizuka, R. Mikami, T. Azuma, and Y. Nagashima, "Threshold Photodetachment Spectroscopy of the Positronium Negative Ion", Phys. Rev. Lett 125, 063001-1-6 (2020). https://doi.org/10.1103/PhysRevLett.125.063001
  • Y. Nagata, K. Michishio, T. Iizuka, H. Kikutani, L. Chiari, F. Tanaka, and Y. Nagashima, "Motion-Induced Transition of Positronium through a Static Periodic Magnetic Field in the Sub-THz Region", Phys. Rev. Lett 124, 173202-1-6 (2020). https://doi.org/10.1103/PhysRevLett.124.173202
  • 周 健治,山田恭平,橋立佳央理,石田 明,難波俊雄,浅井祥仁,五神 真, 田島陽平,蔡 恩美,吉岡孝高,大島永康,オロークブライアン,満汐孝治, 伊藤賢志,熊谷和博,鈴木良一,藤野 茂, 兵頭俊夫,望月出海,和田 健,甲斐健師,「物質反物質非対称性探索を目指したポジトロニウムのレーザー冷却」 Photon Factory News 37, No2(Aug.), 23-26 (2019) 
  • K. Michishio, T. Kanai, S. Kuma, T. Azuma, Ken Wada, I. Mochizuki, T. Hyodo, A. Yagishita, Y. Nagashima, "Observation of a shape resonance of the positronium negative ion", Nature Communications 7, 11060-1-5 (2016). https://doi.org/10.1038/ncomms11060 → プレスリリース(2016.3.18)
  • K. Michishio, R.H. Suzuki, K.Wada, I. Mochizuki, T. Hyodo, A.Yagishita and Y. Nagashima, "Profiles of a positronium beam produced using the photodetachment of positronium negative ions", Nucl. Instrum. Meth. Phys. Res. A 785, 5-8 (2015). https://doi.org/10.1016/j.nima.2015.02.042
  • Y. Nagashima, K. Michishio, H. Terabe, R. H. Suzuki, S. Iida, T. Yamashita, R. Kimura, T. Tachibana, I. Mochizuki, K. Wada, A. Yagishita, and T. Hyodo, "Positronium and positronium negative ion emission from alkali-metal coated tungsten surfaces", J. Phys.: Conf. Ser. 505, 012037-1-6 (2014). https://doi.org/10.1088/1742-6596/505/1/012037
  • K. Michishio, T. Tachibana, R.H. Suzuki, K. Wada, A. Yagishita, T. Hyodo、 Y. Nagashima, "An energy-tunable positronium beam produced using the photodetachment of the positronium negative ion", Appl. Phys. Lett. 100, 254102-1-4 (2012). https://doi.org/10.1063/1.4729867 → プレスリリース(2012.6.20)
  • 長嶋泰之・満汐孝治,「最も軽い三体束縛系-ポジトロニウム負イオンの研究-」,日本物理学会誌 67, 333-337 (2012). https://doi.org/10.11316/butsuri.67.5_333
  • K. Michishio, T. Tachibana, H. Terabe, A. Igarashi, K. Wada, T. Kuga, A. Yagishita, T. Hyodo, and Y. Nagashima, "Photodetachment of Positronium Negative Ions", Phys. Rev. Lett. 106, 153401 (2011). https://doi.org/10.1103/PhysRevLett.106.153401 → プレスリリース(2011.4.7)
  • Y. Nagashima1, K. Michishio, T. Tachibana and H. Terabe, "Towards the production of an energy-tunable positronium beam using Ps- photodetachment technique", J. Phys.: Conf. Ser. 262, 012041-1-4 (2011). https://doi.org/10.1088/1742-6596/262/1/012041
  • 長嶋泰之,「ポジトロニウム負イオンの高効率生成とその応用」,アイソトープニュース,686巻 (2011年) 2.
  • T. Tachibana, K. Michisho, H. Terabe, K. Wada, T. Hyodo, T. Kurihara, A. Yagishita and Y. Nagashima, "Production of Positronium Negative Ions Using a Pulsed Low-energy Positron Beam at the KEK-PF Slow Positron Facility", Nucl. Instrum. Methods A 621, 670 (2010). https://doi.org/10.1016/j.nima.2010.04.018
  • 長嶋泰之,「ポジトロニウム負イオンの大量生成」,パリティ 25, 6 (2010).
ポジトロニウム飛行時間(Ps-TOF)関連
  • A. Kawasuso, M. Maekawa, A. Miyashita, K. Wada, Y Nagashima, and A. Ishida, "Positronium emission from GaN(0001) and AlN(0001) surfaces", J. Phys. B: At. Mol. Opt. Phys. 54, 205202 (2021). https://doi.org/10.1088/1361-6455/ac32a0
  • A. Kawasuso, K. Wada, A. Miyashita, M. Maekawa, H. Iwamori, S. Iida and Y. Nagashima, "Positronium formation at 4H SiC(0001) surfaces" J. Phys.: Condens. Matter 33, 035006-1-7 (2021). https://doi.org/10.1088/1361-648X/abbe7a
  • A. Kawasuso, M. Maekawa, A. Miyashita, K. Wada, T. Kaiwa, and Y. Nagashima, "Positronium formation at Si surfaces", Phys. Rev. B 97, 245303-1-8 (2018). https://doi.org/10.1103/PhysRevB.97.245303
  • S. Iida, K Wada, I Mochizuki, T Tachibana, T Yamashita, T Hyodo, Y Nagashima, "Emission of low-energy positronium from alkali-metal coated single-crystal tungsten surfaces", J. Phys.: Condens. Matter 28, 475002-1-4 (2016). https://doi.org/10.1088/0953-8984/28/47/475002
  • H. Terabe, S. Iida, T. Yamashita, T. Tachibana, B. Barbiellini, K. Wada, I. Mochizuki, A. Yagishita, T. Hyodo, Y. Nagashima , "Increase in the positronium emission yield from polycrystalline tungsten surfaces by sodium coating", Surface Science 641, 68 (2015). https://doi.org/10.1016/j.susc.2015.05.012
  • H. Terabe, S. Iida, K. Wada, T. Hyodo, A Yagishita, and Y. Nagashima, "Efficient emission of positronium atoms from an Na-coated polycrystalline tungsten surface", J. Phy.: Conf. Ser. 443, 012075 (2013). https://doi.org/10.1088/1742-6596/443/1/012075
透過陽電子顕微鏡関連
  • M. Matsuya, S. Jinno, T. Ootsuka, M. Inoue, T. Kurihara, M. Doyama, M. Inoue and M. Fujinami, "Development of a transmission positron microscope", Nucl. Instrum. Methods, A 645, 102 (2011). https://doi.org/10.1016/j.nima.2010.12.228
  • T. Oka, S. jinno, and M. Fujinami, "Analytical methods using a positron microprobe", Anal. Sci. 25, 837 (2009). https://doi.org/10.2116/analsci.25.837
  • A. Uedono, K. Ito, H. Nakamori, S. Ata, T. Ougizawa, K. Ito, Y. Kobayashi, X. Cao, T. Kurihara, N. Oshima, T. Ohdaira, R. Suzuki, T. Akahane, M. Doyama, K. Matsuya, S. Jinno and M. Fujinami, "Annihilation characteristics of positrons in free-standing thin metal and polymer films", Nucl. Instrum. Meth B, 266, 750 (2008). https://doi.org/10.1016/j.nimb.2007.12.104
  • M. Doyama, A. Kogure, M. Inoue, T. Kurihara, X. Cao, M. Matsuya, T. Yoshiie, Y. Hayashi, Q. Xu and M. Fujinami, "Transmission positron images using imaging plates", Appl. Surf. Sci. 255, 89 (2008). https://doi.org/10.1016/j.apsusc.2008.05.230
  • M. Doyama, Y. Kogure, M. Inoue1, T. Kurihara, M. Matsuya, K. Tsuno, T. Yoshiie, and M. Fujinami, "Transmission positron images and microscopes", Phys. Stat. Sol. (c) 4, 3977 (2007). https://doi.org/10.1002/pssc.200675797
ビームライン及び施設全般関連
  • K. Wada, M. Maekawa, I. Mochizuki, T. Shidara, A. Kawasuso, M. Kimura, T. Hyodo, "A pulse stretcher for a LINAC-based pulsed slow-positron beam providing a quasi-continuous beam with an energy of 5.2 keV", Nuclear Inst. and Methods in Physics Research, A 975, 164161-1-7 (2020). https://doi.org/10.1016/j.nima.2020.164161
  • 永井康介,「低速陽電子実験施設の現状」、Photon Factory News 37, No.1, 12 (2020). Photon Factory News 
  • 永井康介,「低速陽電子実験施設の現状」、Photon Factory News 37, No.2, 10 (2019). Photon Factory News
  • T. Hyodo, I. Mochizuki, K. Wada, N. Toge, T. Shidara, "Slow positron applications at Slow Positron Facility of Institute of Materials Structure Science, KEK", AIP Conference Proceedings 1970, 040004-1-10 (2018). https://doi.org/10.1063/1.5040216
  • T. Hyodo, K. Wada, I. Mochizuki, M. Kimura1, N. Toge, T. Shidara, Y. Fukaya, M. Maekawa, A. Kawasuso, S. Iida, K. Michishio, Y. Nagashima, "Research progress at the Slow Positron Facility in the Institute of Materials Structure Science, KEK" J. Phys.: Conf. Ser. 791 (2017) 012003-1-8. https://doi.org/10.1088/1742-6596/791/1/012003
  • M. Maekawa, K. Wada, Y. Fukaya, A. Kawasuso, I. Mochizuki, T. Shidara, and T. Hyodo, "Brightness enhancement of a linac-based intense positron beam for total-reflection high-energy positron diffraction (TRHEPD)", Eur. Phys. J. D 68,165-1-6 (2014). https://doi.org/10.1140/epjd/e2014-40802-7
  • K. Wada, T. Hyodo, T. Kosuge, Y. Saito, M. Ikeda, S. Ohsawa, T. Shidara, K. Michishio, T. Tachibana, H. Terabe, R. H. Suzuki, Y. Nagashima, Y. Fukaya, M. Maekawa, I. Mochizuki, and A. Kawasuso, "New experiment stations at KEK Slow Positron Facility", J. Phys.: Conf. Ser. 443, 012082-1-6 (2013). https://doi.org/10.1088/1742-6596/443/1/012082
  • K. Wada, T. Hyodo, A. Yagishita, S. Ikeda. T. Ohsawa, T. Shidara,. MichishioT. TachibanaY. NagashimaY. FukayaM. MaekawaA. Kawasuso, "Increase in the beam intensity of the linac-based slow positron beam and its application at the Slow Positron Facility, KEK", Eur. Phys. J. D 66, 37-1-4 (2012). https://doi.org/10.1140/epjd/e2012-20641-4
  • T Hyodo, K Wada, A Yagishita, T Kosuge, Y Saito, T Kurihara, T Kikuchi, A Shirakawa, T Sanami, M Ikeda, S Ohsawa, K Kakihara and T Shidara, "KEK-IMSS Slow Positron Facility", J. Phys. Conf. Ser. 262, 012026-1-5 (2011). https://doi.org/10.1088/1742-6596/262/1/012026
  • 兵頭俊夫・和田健,「KEK低速陽電子実験施設」,加速器 8, 3-17 (2011). 「加速器」Vol.8, No.1
その他
  • M. Maekawa, K. Wada, A. Kawasuso, "Development of a new positron source for spin-polarized positron beam generation", Nucl. Inst. Meth. Phys. Res. B 480, 49-55 (2020). https://doi.org/10.1016/j.nimb.2020.08.001
  • K. Yaji, S. Kim, I. Mochizuki, Y. Takeichi, Y. Ohtsubo, P. Le Fèvre, F. Bertran, A. Taleb-Ibrahimi, S. Shin and F. Komori, "One-dimensional metallic surface states of Pt-induced atomic nanowires on Ge (001)", J. Phys.: Condens. Matter 28, 284001-1-9 (2016). https://doi.org/10.1088/0953-8984/28/28/284001
  • 兵頭俊夫,「巻頭言 : 放射線教育の難しさ」,Isotope news 736 (8月号), 1 (2015).
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