Temperature-Dependent EUV Spectra of Xenon Plasmas Observed in the Compact Helical System

We carried out spectroscopic measurements of extreme ultraviolet (EUV) emissions from xenon (Xe) plasmas generated in the Compact Helical System (CHS) by a grazing incidence spectrometer with a spectral resolution of 0.05 nm. Spatial pro les of the electron density and temperature of the plasmas have been measured by laser Thomson scattering diagnostic system. A remarkable variation in spectral features by different electron temperatures was observed, and was attributed to the difference in dominant charge states of Xe ions in the plasma

Unzen Volcano : the 1900-1992 eruption

1.Chronological Table 2.Photographic Records of the 1990-1992 Eruptions at Unzen Volcano[Ohta] 3.Photographic Records of Eruption Products at Unzen Volcano during May 1991-May 1992[Nakada] 4.Photographic Records of People\u27s Life during the Eruption[The Nishinippon] 5.Geological and Tectonic Setting of Unzen Volcano[Okada] 6.The 1990-1992 Eruption of Unzen Volcano[Ohta, Matsuo, Yanagi] 7.Seismological Observations of Unzen Volcano before and during the 1990-1992 Eruption[Shimizu, Umakoshi, Matsuo, Ohta] 8.Surface Temperature Measurements of Lava Domes and Pyroclastic Flows by Infrared Thermal Video System[Umakoshi, Shimizu, Matsuo, Ohta] 9.Seismological Comparison in Eruptive Activity between Mt.Unzen and Mt.Usu[Suzuki] 10.Lava Domes and Pyroclastic Flows of the 1991-1992 Eruption at Unzen Volcano[Nakada] 11.Debris Flows in Mt.Fugen[Hirano, Hashimoto, Moriyama] 12.Geochemical Stuudy of Unzen Volcano by Noble Gas Measurement[Takaoka, Tokunaga, Nagao] 13.Temporal Variation in Specific Gravity of the Lava Extruded from the Jigokuato Crater[Yanagi, Nakada, Maeda] 14.Temporal Variation in Chemical Composition of the Lava Extruded from the Jigokuato Crater, Unzen Volcano[Yanagi, Nakada, Maeda] 15.Batch Franctionation Model for the Evolution of Unzen Volcanic Rocks[Yanagi, Nakada, Maeda] 16.Geological Examination of the Two Old Maps from the Tokugawa Era Concerning the “Shimabara Catastrophe”[Miyachi] 17.Monitoring Ground Movements of Chijiwa Foult and Mt. Mayuyama Using the Global Positioning System for Surevying[Esaki, Aikawa, Okubo, Shimizu, Ohta] 18.Slope Stability of Mt. Mayuyama under the Volcanic Activity of Unzen Volcano[Ochiai, Hayashi, Umemura, Iryo] 19.Earthquake Observations at Mt. Mayuyama[Tsutsumi, Aso, Kitagawa, Uno] 20.Decision Making Process of Both the Administration Bodies and the Inhabitations for Evacuation during the Eruption of Mt. Fugen in Unzen Volcano[Matsunaga, Takahashi] 21.A Documentary of People\u27s Life During the 1990-1992 Eruption of Unzen Volcano[Kawazoe, Okada] References本書は、1990年11月に噴火を開始した雲仙岳の火山活動について地球物理学的、地球科学的、地質学的観測、溶岩組成に基づく噴火モデルおよび眉山崩壊の土質工学的予測を含む総括的報告である

Unzen Volcano : the 1900-1992 eruption

本書は、1990年11月に噴火を開始した雲仙岳の火山活動について地球物理学的、地球科学的、地質学的観測、溶岩組成に基づく噴火モデルおよび眉山崩壊の土質工学的予測を含む総括的報告である。1.Chronological Table 2.Photographic Records of the 1990-1992 Eruptions at Unzen Volcano[Ohta] 3.Photographic Records of Eruption Products at Unzen Volcano during May 1991-May 1992[Nakada] 4.Photographic Records of People's Life during the Eruption[The Nishinippon] 5.Geological and Tectonic Setting of Unzen Volcano[Okada] 6.The 1990-1992 Eruption of Unzen Volcano[Ohta, Matsuo, Yanagi] 7.Seismological Observations of Unzen Volcano before and during the 1990-1992 Eruption[Shimizu, Umakoshi, Matsuo, Ohta] 8.Surface Temperature Measurements of Lava Domes and Pyroclastic Flows by Infrared Thermal Video System[Umakoshi, Shimizu, Matsuo, Ohta] 9.Seismological Comparison in Eruptive Activity between Mt.Unzen and Mt.Usu[Suzuki] 10.Lava Domes and Pyroclastic Flows of the 1991-1992 Eruption at Unzen Volcano[Nakada] 11.Debris Flows in Mt.Fugen[Hirano, Hashimoto, Moriyama] 12.Geochemical Stuudy of Unzen Volcano by Noble Gas Measurement[Takaoka, Tokunaga, Nagao] 13.Temporal Variation in Specific Gravity of the Lava Extruded from the Jigokuato Crater[Yanagi, Nakada, Maeda] 14.Temporal Variation in Chemical Composition of the Lava Extruded from the Jigokuato Crater, Unzen Volcano[Yanagi, Nakada, Maeda] 15.Batch Franctionation Model for the Evolution of Unzen Volcanic Rocks[Yanagi, Nakada, Maeda] 16.Geological Examination of the Two Old Maps from the Tokugawa Era Concerning the “Shimabara Catastrophe”[Miyachi] 17.Monitoring Ground Movements of Chijiwa Foult and Mt. Mayuyama Using the Global Positioning System for Surevying[Esaki, Aikawa, Okubo, Shimizu, Ohta] 18.Slope Stability of Mt. Mayuyama under the Volcanic Activity of Unzen Volcano[Ochiai, Hayashi, Umemura, Iryo] 19.Earthquake Observations at Mt. Mayuyama[Tsutsumi, Aso, Kitagawa, Uno] 20.Decision Making Process of Both the Administration Bodies and the Inhabitations for Evacuation during the Eruption of Mt. Fugen in Unzen Volcano[Matsunaga, Takahashi] 21.A Documentary of People's Life During the 1990-1992 Eruption of Unzen Volcano[Kawazoe, Okada] Reference