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Volume 2, Issue 2
Displaying 1-9 of 9 articles from this issue
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Kenju WATANABE1965 Volume 2 Issue 2 Pages 45-50
Published: 1965
Released on J-STAGE: February 28, 2008
JOURNAL FREE ACCESSReversed phase column chromatography was applied to the separation of Am, Pr, Pm and Eu from 5 to 110 mg of La carrier after coprecipitation. HDEHP and TOPO-xylene solutions held on kieselguhr were used as the stationary phase and the elutions were carried out with 0.1 to 1 N nitric acid solutions. In the HDEHP system, Am can be separated from the rare earths except from Pr. Am can also be separated from Eu in the TOPO system.View full abstractDownload PDF (440K) -
Susumu KITANI, Junichi TAKADA1965 Volume 2 Issue 2 Pages 51-56
Published: 1965
Released on J-STAGE: February 28, 2008
JOURNAL FREE ACCESSThe noble gases, krypton and xenon, were adsorbed on three kinds of molecular-sieves (AW-500, 5A and 13X), as well as on activated charcoals (Tsurumi-HC-30, Takeda-G, -L), at pressures from 10-2mmHg to 1 atm at temperatures ranging from -78°, 0° to 25°C. The adsorption isotherms of krypton and xenon on MS-5A and -13X are linearly proportional to pressure, and are considered to follow de Boer type isotherms. However, the isotherms for other adsorbents are shown to follow the Langmuir pattern. All the isotherms are discussed in terms of functions of the heat of adsorption and surface area. The adsorbents, that show the Langmuir isotherm pattern, are considered to be efficient for practical use in removing or recovering noble gases.View full abstractDownload PDF (386K) -
Kunihiko UEMATSU1965 Volume 2 Issue 2 Pages 57-61
Published: 1965
Released on J-STAGE: February 28, 2008
JOURNAL FREE ACCESSReactor physics characteristics related to plutonium recycling in a gas-cooled, graphite-moderated reactor were investigated and correlated to those for the case without plutonium recycling, using the fuel cycle analysis code FUELMOVE. It was found that, in the initial stages of irradiation, plutonium recycled fuel shows a thermal spectrum harder with respect to neutron temperature and a higher slowing down density, but that differences become smaller as the burnup progresses. A notable difference between the cases with and without recycling lies in the resonance fission rate which proves to be roughly 20 to 35% higher in the former case.View full abstractDownload PDF (317K) -
Kiyosi KOBAYASI1965 Volume 2 Issue 2 Pages 62-67
Published: 1965
Released on J-STAGE: February 28, 2008
JOURNAL FREE ACCESSFilm boiling heat transfer around a sphere moving downward in a liquid, is analyzed in this study. The general solution obtained by the theory proposed, developed under certain reasonable assumptions, shows that the Nusselt number for predicting the boiling heat transfer coefficient depends on the Reynolds number, the Prandtl number, the liquid/vapor viscosity ratio, the kinematic viscosity of liquid, the absolute size of sphere, and on another dimensionless number Cp(θd-θl)/ Δi.
Results obtained numerically from the general solution are applied as examples to boiling heat transfer for water and sodium, from which it is possible to estimate the heat transfer coefficients for a sphere with boiling. The effect of radiative heat transfer is also examined.View full abstractDownload PDF (359K) -
Eiko AKATSU, Tomitaro ISHIMORI1965 Volume 2 Issue 2 Pages 68-71
Published: 1965
Released on J-STAGE: February 28, 2008
JOURNAL FREE ACCESSCarrier-free 58Co produced through (n, p) reaction, is usually prepared by ion exchange, but in this study the graded multistage solvent extraction method was successfully applied to the separation of 58Co from nickel. Nickel sponge of high purity was irradiated for 15 hr in the JRR-1 reactor at Tokai. A dilute hydrochloric acid solution of about 0.2mC of 58Co was obtained from 1 g of nickel sponge by the above mentioned method. The radiochemical purity was determined by means of γ-spectrometry and decay curve measurement.View full abstractDownload PDF (238K) -
Nobuki KAWASHIMA, Masatoshi TANAKA, Sigeru MORI1965 Volume 2 Issue 2 Pages 72-75
Published: 1965
Released on J-STAGE: February 28, 2008
JOURNAL FREE ACCESSLine broadening of He I 4471 ?? and He II 4686 ?? radiated from plasma generated in a Marshall type coaxial plasma gun are measured by a 340 cm Ebert type spectrometer. Doppler shift measurements indicates that a plasma blob is accelerated during about 5μsec from the initiation of gun discharge and leaves the plasma gun, while an unaccelerated plasma remains in the gun throughout the discharge period. Most of the line broadening on the He if 4686 ?? is due to Doppler broadening, and Stark broadening is negligible. The accelerated plasma from the gun gradually loses the velocity component perpendicular to the axis of the plasma gun as it travels through the vacuum vessel.View full abstractDownload PDF (634K) -
Tsutomu NOMURA1965 Volume 2 Issue 2 Pages 76-77
Published: 1965
Released on J-STAGE: February 28, 2008
JOURNAL FREE ACCESSDownload PDF (138K) -
Toichi OKADA, Koji SHIBATA1965 Volume 2 Issue 2 Pages 77-78
Published: 1965
Released on J-STAGE: February 28, 2008
JOURNAL FREE ACCESSDownload PDF (145K) -
M. SRIN IVASAN1965 Volume 2 Issue 2 Pages 78-79
Published: 1965
Released on J-STAGE: February 28, 2008
JOURNAL FREE ACCESSDownload PDF (134K)
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