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Volume 11 (1963 - 196･･･
- Issue 24 Pages 127-
- Issue 23 Pages 83-
- Issue 22 Pages 1-
Volume 11, Issue 22
Displaying 1-10 of 10 articles from this issue
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MASATAKE HONDA1963 Volume 11 Issue 22 Pages 1-15
Published: September 25, 1963
Released on J-STAGE: June 28, 2010
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HISASHI MATSUDA, HIROMITSU NAKABUSHI, KOREICHI OGATA1963 Volume 11 Issue 22 Pages 16-24
Published: September 25, 1963
Released on J-STAGE: June 28, 2010
JOURNAL FREE ACCESSAn apparatus which contracts or enlarges the spot of ion beam without energy dispersion is proposed. When two electric fields of sector type with the same field characterizing constant are oppositely combined in tandem and the source slit is placed at the focal point of the first field, then the image is focused at the focal point of the second field. The energy dispersion at the image position is cancelled out in the first approximation if the deflecting angles of two fields are equal even if the mean radii of them are different. Only the image is contracted or enlarged by the ratio of the radius of the first field to that of the second field.
The coefficients of the second order aberration of this apparatus are calculated in the case of cylindrical electric field and of spherica electric field. The total spread of the image due to the second order aberration may be reduced less than 1 micron at proper conditions in the case of cylindrical electric field with the deflecting angle of 45° and the contracting ratio 5.View full abstractDownload PDF (788K) -
ISAO TAKESHITA1963 Volume 11 Issue 22 Pages 25-29
Published: September 25, 1963
Released on J-STAGE: July 05, 2011
JOURNAL FREE ACCESSAs an example of charged particle optics expressed in a matrix formalism, the condition to be filled between two fields in the case of the generalized Mattauch-Herzog type mass spectrograph is derived.
The general formulae of the setting aberrations are given by the partial differentiation of each element.The setting aberrations are calculated and tabulated for the common Mattauch-Herzog type mass spectrograph which consists of a π/4√2 cylindrical electrostatic analyzer followed by a 90° homogeneous magnetic field. The results are compared with those given by T. Kitagaki and the difference is discussed.View full abstractDownload PDF (566K) -
TAKUYA HATA, JUNJIRO KAI, MASAYO MIKI1963 Volume 11 Issue 22 Pages 30-36
Published: September 25, 1963
Released on J-STAGE: June 28, 2010
JOURNAL FREE ACCESSA series of samples of spectrographically standardized aluminum alloys containing Mg, Mn, Fe, Si, Cr, Ti, Cu, Ni and Zn has been analyzed to examine the three methods described in Part B of this paper. Calibration curves prepared with the method(2)(Curve(2))and the method(3)(Curve(3))are examined by comparing them with the curves of method(1)(Curve(1)). Results are as follows: a)Curve(1)is in agreement with Curve(2)for Ti of concentration range from 39 to 1500 ppm, and for Si from 1200 to 6900 ppm. b)Curves(1)show somewhat convex shape for Zn, Ni and Cr, and somewhat irregular form for Fe and Cu, and are in agreement with Curves(2)roughly for latter two elements. c)Curve(3)has been prepared for Ti only, and proved useful for Ti in aluminium samples.View full abstractDownload PDF (782K) -
JUNJIRO KAI1963 Volume 11 Issue 22 Pages 37-41
Published: September 25, 1963
Released on J-STAGE: June 28, 2010
JOURNAL FREE ACCESSSome methods of quantitative analysis of solids by means of mass spectrograph with spark type ion source are discussed. Relation between the number of atoms N consumed by sparking and total integrated change q falling on the monitor electrode in front of magnetic field is analyzed, and the number of ions n falling on unit area of the spectral line is shown to be given by the equation n=g(C)γ. q/A, w here C: concentration of regarded element, γ: isotopic abundance of the spectral line, A: area of the spectral line. From this equation, following methods of preparing the calibration curves are proposed.
(1)The line density D vs C curve must be used in general. Several standard samples of varying C value is necessary, and the values γ, q and A must be kept constant in this procedure.
(2)D vs γ · q · C curve may be used as the calibration curve of low concentration range of the element, provided there occur no “ matrix effects ” in ionization process. Only one standardised sample of low concentration range of the element will do in this procedure, for γ and q are variable.
(3)If there occur no “ matrix effects ”, D vs γ · q · C curve may he used as the calibration curve for the sample consists of elements which behave in the same manner in ionization process. Only one standardized sample or pure substance will do in this procedure.View full abstractDownload PDF (764K) -
TAKAYUKI HAYAKAWA1963 Volume 11 Issue 22 Pages 42-45
Published: September 25, 1963
Released on J-STAGE: June 28, 2010
JOURNAL FREE ACCESSUtilization of the flash-type titanium getter pump for evacation of the large volume apparatus was studied. The testing appratus consists of the getter pump chamber, an auxiliary diffusion pump and a mass-spectrometer used to analyze the residual gases.
The pumping speed for air is 1000 l/sec to 1200 l/sec at 7×10-7mm Hg, the end vacuum is 8×10-7mm Hg to 2×10-8mm Hg, and these performances are maintained for about 5 hours.
The peak heights of the oil fragments other than methane in the getter pump are lower than those in the oil diffusion pump and the rotary pump.
The pump system of this type will be used for evacuation of the Hitachi nuclear fusion testing device.View full abstractDownload PDF (2260K) -
Mass Spectrometric Analysis of Monoaromatic Hydrocarbon in Gas Oil.SHOZO OSHIMA, AKIRA KATSUMATA, KINYA FUJII1963 Volume 11 Issue 22 Pages 46-50
Published: September 25, 1963
Released on J-STAGE: June 28, 2010
JOURNAL FREE ACCESSThe monoaromatic hydrocarbon fraction separated from Kuwait gas oil cut (210-330 °C) by elusion chromatography was analyzed by thelow voltage ionization method. The sulfur compounds in the fraction were removed by mercuric treatment.
The abundance order of hydrocarbon types in the fraction was as follows: monocycloalkylbenzene > alkylbenzene > dicyclo-alkylbenzene > tricyclo-alkylbenzene.
The total of cycloalkylbenzenes of the fraction was 67.6%, the constitution of this monoaromatic fraction resembled to that of California crude oil. The abundance of cycloalkylbenzenes in paraffinic Kuwait and California crude oil is high and that of cycloalkylbenzenes in non-paraffinic Pennsylvania crude oil is low. It may be expected that the constitution of monoaromatic fraction is related to the types of crude oil. Carbon numbers of alkyl branch of monoaromatic hydrocarbons were five or less than five.View full abstractDownload PDF (577K) -
Measurements of Isotope Abundance Ratjo of NitrogenRYOHEI NAKANE1963 Volume 11 Issue 22 Pages 51-56
Published: September 25, 1963
Released on J-STAGE: June 28, 2010
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HIROHIKO EZOE1963 Volume 11 Issue 22 Pages 57-62
Published: September 25, 1963
Released on J-STAGE: June 28, 2010
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1963 Volume 11 Issue 22 Pages e1
Published: 1963
Released on J-STAGE: July 05, 2011
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