摘要:

The nucleus is a complicated many-body structure whose properties when carefully studied can frequently give important information about the underlying elementary particle interactions. This article reviews progress in research of this kind over the last twenty-five years.

ISSN:0010-7514    

DOI:10.1080/00107517908210909

出版商:Taylor & Francis Group    

年代:1979

数据来源: Taylor

摘要:

The technology of ultra-high vacuum (U.H.V.) was established in the two decades between 1950 and 1970. Although there have been no recent developments of major significance the basic principles of U.H.V. are being used in applied science and engineering application on an increasing scale. There are large machines at CERN which depend entirely upon U.H.V for their operation. Similar dependence is seen in thermonuclear research, for example in the Joint European Torus. In the field of semiconductor device manufacture the techniques of molecular beam epitaxy require the very best vacuum conditions. This review concentrates upon the problems of monitoring both the total and partial pressure of gases at very low pressures from 10−8mb to below 10−12mb. Emphasis is upon methods which are in established practical use. All are based upon the simple ionization gauge as modified by Bayard and Alpert in their pioneering work. For residual gas analysis, interest is divided between the magnetic deflection and the quadrupole mass spectrometers.

ISSN:0010-7514    

DOI:10.1080/00107517908210910

出版商:Taylor & Francis Group    

年代:1979

数据来源: Taylor

摘要:

The environment of a DT fusion reactor is unlike anything previously experienced in fission reactors and the requirements for first wall materials will be quite severe. Considerable emphasis is placed on characterizing the environment for both magnetically and inertially confined plasmas, focusing on what we do and do not know at the present time. Once the neutron, photon, and charged particle fluxes are determined, the primary damage functions are calculated and it is shown that the displacement rate in inertial confinement fusion reactors and the helium production rate in all DT fusion reactors are sufficiently different to warrant concern over extrapolation from present facilities. Finally, the major responses of the first wall to the primary damage state appear in the swelling and embrittlement problems. Observations on potential materials and their operating limits are also made.

ISSN:0010-7514    

DOI:10.1080/00107517908210911

出版商:Taylor & Francis Group    

年代:1979

数据来源: Taylor

摘要:

This article gives a tutorial survey of the xerographic process and the relevant physical phenomena involved in the formation of the latent image. Emphasis is on experimental results on amorphous selenium, but other materials will be described in order to explain properties which are either general to the disordered state or characteristically different from those of wide-band semiconductors. The discussion includes a description of the Onsager mechanism of charge generation, transient dispersive transport and recent models of defects in amorphous semiconductors. The article ends with a description of recent results related to the control of defects in chalcogenide glasses.

ISSN:0010-7514    

DOI:10.1080/00107517908210912

出版商:Taylor & Francis Group    

年代:1979

数据来源: Taylor

ISSN:0010-7514    

DOI:10.1080/00107517908210913

出版商:Taylor & Francis Group    

年代:1979

数据来源: Taylor

摘要:

A Review ofPhysics of Semiconductors. Proceedings of the 13th International Conference (Rome 1976). Edited by F. G. Fumi. (North-Holland), 1976. [Pp. xiii + 1327.1 Price $95.00.

ISSN:0010-7514    

DOI:10.1080/00107517908210914

出版商:Taylor & Francis Group    

年代:1979

数据来源: Taylor

ISSN:0010-7514    

DOI:10.1080/00107517908210915

出版商:Taylor & Francis Group    

年代:1979

数据来源: Taylor

摘要:

Electron and Ion Spectroscopy of Solids.Edited by L. Fiermans, J. Vennik and W. Dekeyser. (Plenum Publishing Corp., 1978.) [Pp. xi + 475.] $57·00.

ISSN:0010-7514    

DOI:10.1080/00107517908210916

出版商:Taylor & Francis Group    

年代:1979

数据来源: Taylor

ISSN:0010-7514    

DOI:10.1080/00107517908210917

出版商:Taylor & Francis Group    

年代:1979

数据来源: Taylor