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Technical and industrial developments
Contributors to this issue Editor's note It is hoped that this feature of Vacuum providing brief particulars of authors for each issue, will be helpful in promoting awareness of active workers in the various fields of vacuum science and technology. Intending contributors are in vited to submit photographs and such brief details as they think are suitable.
Structure and properties of dielectric films
C Weaver, BSc (London), DSc (Glasgow), FlnstP, AMIEE, MIEE, has since 1950, been
C Weaver BSc
D J Turner
atthe University of Strathclyde where he has built up an active research school working on the properties of thin films and their application to problems in Solid State Physics. He had worked previously in the research laboratories of the GEC and then spent about three years lecturing and studying the properties of polymers immediately before taking up his present appointment. An extensive list of publications includes several papers on the adhesion of metal films to glass, single crystals, and other surfaces and work is currently in progress on the nature of the bonding between metals and polymers. Optical studies of thin films cover structural investigations, determination of the phase change on reflection, measurement of the complex refractive index. Another major interest has been the study of diffusion and intermetallic compound formation in thin films using optical and other methods to trace the movement of the diffusion boundary. His work on the dielectric properties of thin films is well-known as a major contribution in this field and he is an accepted authority on the subject. He was working on dielectric films long before this topic achieved its present popularity and further original papers will shortly be appearing. He has some of the best equipped laboratories in this country for research on thin films and grants have recently been obtained from DSIR to extend research to liquid helium temperatures.
Factors influencing the measurement of the ionising efficiency of pumps D J Turner has been employed at Edwards High Vacuum International Ltd since 1953. He is at present working on ion pumps and associated research. His article Electrostatic ionization pumps and gauges---criterion for charged particles orbiting in a logarithmic field appeared in the December 1964 issue of Vacuum. An air-cooled diffusion pump and thermoelectrically cooled baffle to reach 10-9 tort D J Crawley, BSc. Has worked in the Research Department of Edwards High Vacuum Ltd for many years, mainly on problems connected with vapour pumps and their application in low pressure systems; much of this work has been published in lectures and papers. At present 197
C o n t r i b u t o r s to this issue
he is leader of a section responsible for the design and development of high vacuum pumps and associated equipment, and is particularly interested in the techniques of rapidly achieving very low pressures in large scale apparatus. J M Mil/er served a Physics/Engineering apprenticeship at AERE, Harwell, and on leaving in 1958 went to the Plessey Company for a year to work on nuclear radiation detectors. A two-year spell in the RAF followed during which hetaught electronics to radio fitters. After this he joined Edwards High Vacuum International Ltd where he worked on diffusion pumps and thermo-electric baffles for three years. He is now employed at the British Aircraft Corporation, Filton where he is involved in the manufacture of thin film circuits. J M Miller
198
Structure and properties of dielectric films
C Weaver, BSc (London), DSc (Glasgow), FlnstP, AMIEE, MIEE, has since 1950, been
C Weaver BSc
D J Turner
atthe University of Strathclyde where he has built up an active research school working on the properties of thin films and their application to problems in Solid State Physics. He had worked previously in the research laboratories of the GEC and then spent about three years lecturing and studying the properties of polymers immediately before taking up his present appointment. An extensive list of publications includes several papers on the adhesion of metal films to glass, single crystals, and other surfaces and work is currently in progress on the nature of the bonding between metals and polymers. Optical studies of thin films cover structural investigations, determination of the phase change on reflection, measurement of the complex refractive index. Another major interest has been the study of diffusion and intermetallic compound formation in thin films using optical and other methods to trace the movement of the diffusion boundary. His work on the dielectric properties of thin films is well-known as a major contribution in this field and he is an accepted authority on the subject. He was working on dielectric films long before this topic achieved its present popularity and further original papers will shortly be appearing. He has some of the best equipped laboratories in this country for research on thin films and grants have recently been obtained from DSIR to extend research to liquid helium temperatures.
Factors influencing the measurement of the ionising efficiency of pumps D J Turner has been employed at Edwards High Vacuum International Ltd since 1953. He is at present working on ion pumps and associated research. His article Electrostatic ionization pumps and gauges---criterion for charged particles orbiting in a logarithmic field appeared in the December 1964 issue of Vacuum. An air-cooled diffusion pump and thermoelectrically cooled baffle to reach 10-9 tort D J Crawley, BSc. Has worked in the Research Department of Edwards High Vacuum Ltd for many years, mainly on problems connected with vapour pumps and their application in low pressure systems; much of this work has been published in lectures and papers. At present 197
C o n t r i b u t o r s to this issue
he is leader of a section responsible for the design and development of high vacuum pumps and associated equipment, and is particularly interested in the techniques of rapidly achieving very low pressures in large scale apparatus. J M Mil/er served a Physics/Engineering apprenticeship at AERE, Harwell, and on leaving in 1958 went to the Plessey Company for a year to work on nuclear radiation detectors. A two-year spell in the RAF followed during which hetaught electronics to radio fitters. After this he joined Edwards High Vacuum International Ltd where he worked on diffusion pumps and thermo-electric baffles for three years. He is now employed at the British Aircraft Corporation, Filton where he is involved in the manufacture of thin film circuits. J M Miller
198