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Breakdown condition in an azimuthal discharge
Classified Abstracts
24
31.
Evacuation and Sealing 31 : 18
Electrical breakdown.
See Abstr. No. 9.
Breakdown condition in an azimuthal discharge. No. 12.
32.
31 : 18 : 33 See Abstr.
Nucleon& 32
77. Electron accelerators for site radiography. R. F. Hanstock, Nuclear Power, 6 (58), Feb. 1961, 69-71. 32 78. Radiography for nuclear power-the world’s first mobile linear accelerator. Anon., Nuclear Power, 6 (58), Feb. 1961, 90. 32 79. The tandem Van der Graaff accelerator at Liverpool University. B. S. Halliday, J. Instn. Elect. Engrs, 8 (90), June 1962, 284-287. 32 : 30 : 41 80. New aspect of cyclotron resonance in thin metallic films. H. Suzuki, J. Phys. Sot. Japan, 17 (6), June 1962, 1077. Viscosity coefficient of a plasma in a magnetic field. No. 10. Microwave generation Abstr. No. 11.
32 : 18 : 33 See Abstr.
32 : 18 : 33 of the second harmonic in a plasma. See
32 : 18 : 33 On the stability of a magnetically compressed plasma surface. See Abstr. No. 13. 32 : 18 : 33 Theory of the magnetic shock tube with varying driving magnetic field. See Abstr. No. 15.
33.
General Physics and Electronics
33 81. Cryogenics : lower temperatures at lower costs. M. A. Dubs and R. D. Thompson, Chem. Engng, 69 (12), 11 June 1962, 152-157. 33 82. Water cooled vacuum-heating stage for microscopes shown at Hanover Fair 1962 (In German). K. Dietering, Feinw. Tech., 66 (7), July 1962, 258. 33 83. Temperature measurements from 2”K-400°K. M. G. Holland, L. G. Rubin and J. Welts, Znstrum. & Control Syst., 35 (5), May 1962, 89-92. 33 84. Direct observation of individual adatoms : nitrogen on tungsten C6eld ion microscopy). G. Ehrlich and F. G. Hudda, J. Chem. Phys.. 36 (12), 15 June 1962. 3233. 73 85. Controlled fusion research. J. B. Adams, J. Instn Elect. Engrs, 8 (ES!, April 1962, 193-196.
77-90
33:30:41:42 86. Electron diffraction study of evaporated films of nickel and cobalt. Japan. Evaporated films of nickel and cobalt formed on amorphous bases were studied by the radial distribution method The mean thickness of films was of the of electron diffraction. order of lOA. Such thin films are not continuous and consist of crystallites with size of the order of lOA. For nickel crystallites the lattice constant and the amplitude of thermal vibration are the same as those of massive crystals but anomalous neighbours of h.c.p. type are found. These results are the same as those for silver which we studied in the previous work (J. Phys. Sot. Japan, 13, 1958, 1015). For cobalt crystallites at room temperature the amplitude of thermal vibration turns out to be twice as large as that of massive cobalt crystals and the numbers of neighbours are found to be equal to those which are calculated for a mixture of h.c.p. and diamond structures. At high temperatures, cobalt crystallites become h.c.p. and gradually transform to f.c.c. structure. The amplitude of thermal vibration is 0.15A at 250°C and 0.17A at 43O”C, both (Authors) of which agree with the values for massive crystals. H. Morimoto and H. Sakata, 1962. 136-145.
J. Phys. Sot. Japan, 17 (l), Jan.
33 87. Ejection of electrons from barium oxide by noble gas ions. Japan. Electron ejection from BaO by accelerated singly charged ions of noble gases (except Kr) was investigated experimentally. BaO crystals used were of two kinds : those annealed at 850°C and those activated by glow discharge in a noble gas. Measurements of the total yield, y, and of the energy distribution of ejected electrons were made for ions in the kinetic energy range, 30-600 eV. For each kind of ion, y increases remarkably with increasing kinetic energy of the ions, and at the same time, y also depends the electron energy distribution spreads greatly. on the state of the BaO surface, and this occurs through a change in population of the low energy part of the ejected electrons. Reflection of primary ions as ions at the BaO surface is very small (to.5 per cent) for ionic energies less than 100 eV. A part of the electrons ejected by slow ions can be accounted for by the theory of Auger electron ejection from the valence band of BaO. The enlargement of the electron energy distribution with increasing ion kinetic energy is explained by an increase in repulsive potential between 02- and the incoming ion. (Author) Y. Takeishi, J. Phys. Sot. Japan, 17 (2), Feb. 1962, 326-341 33 88. Build-up of electron density in neon-argon gas discharges in pulsed microwave fields. M. Kumagai and T. Tsukishima, J. Phys. Sot. Japan, 17 (7), July 1962, 1204-1205. 33 : 40 89. Lifetime of the metastable 2P state of the nitrogen atom. Canada. Decay of the2P stateof the nitrogen atomwas measured The decay times were of over the pressure range 0.1 to 5 torr. the order of milliseconds and long persistence of this ‘P state at one time postulated in the nitrogen afterglow seems impossible. From the form of the pressure variation the authors conclude that collisions with molecules are not inevitably highly efficient W. J. S. in removing the energy of a metastable state. J. M. Anderson and J. R. Burrows, Nature, 193 (4818), 3 March 1962, 865-866. 33 90. Field ion microscope. Great Britain. In the Field Ion microscope, an image of the atomic structure of a very fine point at the end of a metallic wire is formed on a fluorescent screen by projecting on it helium Pressure and voltage are adjusted ions produced at the point.
24
31.
Evacuation and Sealing 31 : 18
Electrical breakdown.
See Abstr. No. 9.
Breakdown condition in an azimuthal discharge. No. 12.
32.
31 : 18 : 33 See Abstr.
Nucleon& 32
77. Electron accelerators for site radiography. R. F. Hanstock, Nuclear Power, 6 (58), Feb. 1961, 69-71. 32 78. Radiography for nuclear power-the world’s first mobile linear accelerator. Anon., Nuclear Power, 6 (58), Feb. 1961, 90. 32 79. The tandem Van der Graaff accelerator at Liverpool University. B. S. Halliday, J. Instn. Elect. Engrs, 8 (90), June 1962, 284-287. 32 : 30 : 41 80. New aspect of cyclotron resonance in thin metallic films. H. Suzuki, J. Phys. Sot. Japan, 17 (6), June 1962, 1077. Viscosity coefficient of a plasma in a magnetic field. No. 10. Microwave generation Abstr. No. 11.
32 : 18 : 33 See Abstr.
32 : 18 : 33 of the second harmonic in a plasma. See
32 : 18 : 33 On the stability of a magnetically compressed plasma surface. See Abstr. No. 13. 32 : 18 : 33 Theory of the magnetic shock tube with varying driving magnetic field. See Abstr. No. 15.
33.
General Physics and Electronics
33 81. Cryogenics : lower temperatures at lower costs. M. A. Dubs and R. D. Thompson, Chem. Engng, 69 (12), 11 June 1962, 152-157. 33 82. Water cooled vacuum-heating stage for microscopes shown at Hanover Fair 1962 (In German). K. Dietering, Feinw. Tech., 66 (7), July 1962, 258. 33 83. Temperature measurements from 2”K-400°K. M. G. Holland, L. G. Rubin and J. Welts, Znstrum. & Control Syst., 35 (5), May 1962, 89-92. 33 84. Direct observation of individual adatoms : nitrogen on tungsten C6eld ion microscopy). G. Ehrlich and F. G. Hudda, J. Chem. Phys.. 36 (12), 15 June 1962. 3233. 73 85. Controlled fusion research. J. B. Adams, J. Instn Elect. Engrs, 8 (ES!, April 1962, 193-196.
77-90
33:30:41:42 86. Electron diffraction study of evaporated films of nickel and cobalt. Japan. Evaporated films of nickel and cobalt formed on amorphous bases were studied by the radial distribution method The mean thickness of films was of the of electron diffraction. order of lOA. Such thin films are not continuous and consist of crystallites with size of the order of lOA. For nickel crystallites the lattice constant and the amplitude of thermal vibration are the same as those of massive crystals but anomalous neighbours of h.c.p. type are found. These results are the same as those for silver which we studied in the previous work (J. Phys. Sot. Japan, 13, 1958, 1015). For cobalt crystallites at room temperature the amplitude of thermal vibration turns out to be twice as large as that of massive cobalt crystals and the numbers of neighbours are found to be equal to those which are calculated for a mixture of h.c.p. and diamond structures. At high temperatures, cobalt crystallites become h.c.p. and gradually transform to f.c.c. structure. The amplitude of thermal vibration is 0.15A at 250°C and 0.17A at 43O”C, both (Authors) of which agree with the values for massive crystals. H. Morimoto and H. Sakata, 1962. 136-145.
J. Phys. Sot. Japan, 17 (l), Jan.
33 87. Ejection of electrons from barium oxide by noble gas ions. Japan. Electron ejection from BaO by accelerated singly charged ions of noble gases (except Kr) was investigated experimentally. BaO crystals used were of two kinds : those annealed at 850°C and those activated by glow discharge in a noble gas. Measurements of the total yield, y, and of the energy distribution of ejected electrons were made for ions in the kinetic energy range, 30-600 eV. For each kind of ion, y increases remarkably with increasing kinetic energy of the ions, and at the same time, y also depends the electron energy distribution spreads greatly. on the state of the BaO surface, and this occurs through a change in population of the low energy part of the ejected electrons. Reflection of primary ions as ions at the BaO surface is very small (to.5 per cent) for ionic energies less than 100 eV. A part of the electrons ejected by slow ions can be accounted for by the theory of Auger electron ejection from the valence band of BaO. The enlargement of the electron energy distribution with increasing ion kinetic energy is explained by an increase in repulsive potential between 02- and the incoming ion. (Author) Y. Takeishi, J. Phys. Sot. Japan, 17 (2), Feb. 1962, 326-341 33 88. Build-up of electron density in neon-argon gas discharges in pulsed microwave fields. M. Kumagai and T. Tsukishima, J. Phys. Sot. Japan, 17 (7), July 1962, 1204-1205. 33 : 40 89. Lifetime of the metastable 2P state of the nitrogen atom. Canada. Decay of the2P stateof the nitrogen atomwas measured The decay times were of over the pressure range 0.1 to 5 torr. the order of milliseconds and long persistence of this ‘P state at one time postulated in the nitrogen afterglow seems impossible. From the form of the pressure variation the authors conclude that collisions with molecules are not inevitably highly efficient W. J. S. in removing the energy of a metastable state. J. M. Anderson and J. R. Burrows, Nature, 193 (4818), 3 March 1962, 865-866. 33 90. Field ion microscope. Great Britain. In the Field Ion microscope, an image of the atomic structure of a very fine point at the end of a metallic wire is formed on a fluorescent screen by projecting on it helium Pressure and voltage are adjusted ions produced at the point.