High-space resolution imaging plate analysis of extreme ultraviolet (EUV) light from tin laser-produced plasmas

金沢大学先端科学・社会共創推進機構With the advent of high volume manufacturing capabilities by extreme ultraviolet lithography, constant improvements in light source design and cost-efficiency are required. Currently, light intensity and conversion efficiency (CE) measurments are obtained by charged couple devices, faraday cups etc, but also phoshpor imaging plates (IPs) (BaFBr:Eu). IPs are sensitive to light and high-energy species, which is ideal for studying extreme ultraviolet (EUV) light from laser produced plasmas (LPPs). In this work, we used IPs to observe a large angular distribution (10°-90°). We ablated a tin target by high-energy lasers (1064 nm Nd:YAG, 1010 and 1011 W/cm2) to generate the EUV light. The europium ions in the IP were trapped in a higher energy state from exposure to EUV light and high-energy species. The light intensity was angular dependent; therefore excitation of the IP depends on the angle, and so highly informative about the LPP. We obtained high-space resolution (345 μm, 0.2°) angular distribution and grazing spectrometer (5-20 nm grate) data simultaneously at different target to IP distances (103 mm and 200 mm). Two laser systems and IP types (BAS-TR and BAS-SR) were also compared. The cosine fitting values from the IP data were used to calculate the CE to be 1.6% (SD ± 0.2) at 13.5 nm 2% bandwidth. Finally, a practical assessment of IPs and a damage issue are disclosed. © 2017 Author(s).Embargo Period 12 month

Epidemiology of Infectious Hepatitis 1st. Chapter Epidemiologic Observations for Infectious Hepatitis in Akaiwa District (No. 1)

Since August 1951 to Feb. 1953, there was a great epidemic of serious infectious hepatitis over the area including Toyota, Onoda, Kama villages in Akaiwa County, as well as Kumayama village in wake County; observing its state, the following results were obtained. 1. Death toll has amounted to 13, out of 93 patients: its mortality rate, 13.98%; in number of the patients, Kama at the top, next, Toyoda, Onoda and Kumayama village, in literal order. 2. The epidemic took the direction, from the south extending to the north in a slow march, taking a hamlet as unit, showed a lack of specific seasonal occurence. 3. As to age, it has ranged roughly from 10 to 60, amid which 21-30 figured out as top years; below 10, only 4 cases; above 70, 5 cases. As to sex, almost similar in number. 4. As to profession, principally, farming people; as one can suppose from its locality. In making investigations into the cause of disease. certain consideration must be taken on the great responsibility imposed on farmers' wives. 5. The infection for this disease was classified as village infection or familiary infection; among 22 cases (23.4% of total patients) of familary infection, there were 4 families, each yielding even 3 sickened members; 5 families whose two members taken infection; in total, amnunted to 9 families. Among these tribal infection, report has been submitted about 1 family whose infection tract was clearly traced, as well as a family in which, if man did not expose certain inapparent infections, all cases have proved utterly whimsical. 6. The incubation period for this disease may probably be estimated to be about 24-27 days, if it may be supposed from these infectious state, and would be considered perorale infection

Spatial and temporal evolution of stress and slip rate during the 2000 Tokai slow earthquake

Author Posting. © American Geophysical Union, 2006. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Journal of Geophysical Research 111 (2006): B03409, doi:10.1029/2004JB003426.We investigate an ongoing silent thrust event in the Tokai seismic gap along the Suruga-Nankai Trough, central Japan. Prior to the event, continuous GPS data from April 1996 to the end of 1999 show that this region displaced ∼2 cm/yr to the northwest relative to the landward plate. The GPS time series show an abrupt change in rate in mid-June 2000 that continues as of mid-2005. We model this transient deformation, which we refer to as the Tokai slow thrust slip event, as caused by slip on the interface between the Philippine Sea and Amurian plates. The spatial and temporal distribution of slip rate is estimated with Kalman filter based inversion methods. Our inversions reveal two slow subevents. The first initiated in late June 2000 slightly before the Miyake-jima eruption. The locus of slip then propagated southeast in the second half of 2000, with maximum slip rates of about 15 cm/yr through 2001. A second locus of slip initiated to the northeast in early 2001. The depth of the slip zone is about 25 km, which may correspond to the transition zone from a seismogenic to a freely sliding zone. The cumulative moment magnitude of the slow slip event up to November 2002 is M w ∼ 6.8. We calculate shear stress changes on the plate interface from the slip histories. Stress change as a function of slip rate shows trajectories similar to that inferred for high-speed ruptures; however, the maximum velocity is 8 orders of magnitude less than in normal earthquakes.Part of this study is supported by JSPS Postdoctral Fellowships for Research Abroad

川崎医科大学におけるブース形式診療科別説明会の学内開催

川崎医科大学は,中核市の倉敷市内と政令指定都市の岡山市内に二つの附属病院を有している。両病院の卒後臨床研修プログラムは独立しているが,研修は両方の病院の診療科から選択することが可能である。平成27年7月,初めて川崎医科大学生を対象にした大学附属病院診療科の説明会をブース形式で学内開催した。研修プログラム説明会とは趣を異にし,各診療科の特徴や業務内容を広報することを目的とした。1年生から6年生までの学生が参加し,アンケート調査に回答した52名全員が将来の研修病院の選択に役に立ったと答え,うち27%は非常に役立ったと高い満足度を示した。また,研修医だけで計画した学生向けのミニシンポジウムも同時に開催し,来場した約70%の学生が参加し貴重な情報収集の場となった。次年度以降も改善を加えながら,学生が身近に附属病院スタッフや先輩研修医と交流できるイベントとして育てていきたい。Kawasaki Medical School has one hospital in Kurashiki City, a core city, and another in Okayama City, an ordinance-designated city. These hospitals have independent postgraduate clinical training programs. However, departments of both hospitals can be selected for training. In July 2015, a boothtype meeting regarding Kawasaki Medical School Hospital departments was held for Kawasaki Medical School students for the first time. The intent of the meeting differed from that of other training program meetings, and its goal was to provide information on the characteristics and tasks of each department. First- to sixth-year students participated in the meeting. All 52 students who responded to a questionnaire survey answered that the meeting was useful in helping them select a hospital for their future training, and 27% of them reported that the meeting was very useful and showed high levels of satisfaction. A mini symposium for students planned only by residents was also held at the same time. About 70% of visiting students participated in the symposium and were given a valuable opportunity to gather information. By making improvements, we will cultivate the meeting as an event in which students can have contact with hospital staff and junior residents from the next year

Periodicity of Superatomic Hybrid Orbitals in Substituted Superatoms and Superatomic-like X@Ga₁₂ (X = Li~Kr) Clusters

A superatom is a cluster composed of a specific number of atoms. We recently found that the superatom-like X@Ga12 (X = Li~Kr) clusters has the periodic energy levels of the specific orbitals 2S and 2P by means of the DV-Xα molecular orbital calculation method. This periodicity in energy levels has not been seen in 1D or 1F orbitals. We supposed that the periodicity of the energy levels of the 2S and 2P superatomic-like orbitals come from the same symmetry between atomic orbitals as the central atom X and the surrounding specific orbitals, according to the Jellium model. Both the s and p atomic orbitals of the central atom X in the superatom-like X@Ga12 have a large shielding effect, suggesting that the s and p atomic orbitals interact strongly with both 2S and 2P superatomic-like orbitals. The energy level periodicity has the potential to periodically change the number of electrons located in the 1D and 1F orbitals, which is related to magnetic properties and is expected to be useful for novel magnetic devices by periodically controlling the magnetism of superatoms