B. Beaumont

Publication List Details

Period

1991 - 2009

Number

49

Co-Authors

MRSInternet Journal Nitride Semiconductor Research Mg-enhanced lateral overgrowth of GaN on patterned GaN/sapphire substrate by selective Metal Organic Vapor Phase Epitaxy (2008)

B. Beaumont, M. Vaille, G. Nataf, A. Bouillé, P. Vénnègues, ...

until coalescence to produce smooth and optically flat thick GaN layers. A GaN epitaxial layer is first grown using atmospheric pressure Metalorganic Vapour Phase Epitaxy on a {0001} Al 2 O 3....

ITER LHCD plans and design (2006)

Bibet, Ph., Beaumont, B., Belo, J.H., Bizarro, J.P.S., Delpech, L., Ekedahl, A., ...

Proceedings. 21st IEEE/NPSS Symposium on Fusion Engineering. Knoxville, USA, 26 - 29 Sept. 2005. Article number 4018980

Overview of JET results (2003)

Pamela, J., Solano, E. R., Adams, J. M., Agarici, G., Agarici, M., Akhter, H., ...

Scientific and technical activities on JET focus on the issues likely to affect the ITER design and operation. Our understanding of the ITER reference mode of operation, the ELMy H-mode, has...

Free carrier effects in gallium nitride epilayers: the valence band dispersion (2001)

Shields, P. A., Nicholas, R. J., Peeters, F. M., Beaumont, B., Gibart, P.

The dispersion of the A-valence-band in GaN has been deduced from the observation of high-index magneto-excitonic states in polarised interband magneto-reflectivity and is found to be strongly...

Temperature dependent electroluminescence in GaN and IaGaN/GaN LEDs (2001)

Beaumont, B, Gibart, P, Heuken, M

We have investigated the electroluminescent properties of GaN and InGaN/GaN test structures grown on sapphire by MOCVD. Studies have been made over the temperature range from 370 to 80 K using a...

Cathodoluminescence of epitaxial GaN laterally overgrown on (0001) sapphire substrate. Time evolution with low energy electron beam (2001)

Dassonneville, S., Amokrane, A., Sieber, B., Farvacque, J. L., Beaumont, B., Gibart, P., ...

The evolution of GaN luminescence under electron beam injection has been studied by means of in situ cathodoluminescence experiments on various epitaxial lateral overgrown samples. It is shown that...

Defect diffusion and strain relaxation in epitaxial GaN laterally overgrown on (0001) sapphire under low energy electron beam irradiation (2000)

Amokrane, A., Dassonneville, S., Sieber, B., Farvacque, J. K., Beaumont, B., Bousquet, V., ...

In situ cathodoluminescence experiments have been performed to follow the time dependence of the UV luminescence in epitaxial lateral overgrowth GaN specimens. The decrease of the observed intensity...

Cathodoluminescence intensity and dislocation contrast evolutions under electron beam excitation in epitaxial GaN laterally overgrown on (0001) sapphire (1999)

Dassonneville, S., Amokrane, A., Sieber, B., Farvacque, J. L., Beaumont, B., Bousquet, V., ...

We describe the first stage of the evolution of CL spectra, intensity and dislocation contrast under low keV electron beam for ELO-GaN with a low dislocation density. The UV and yellow intensities...

Lower Hybrid Current Drive in Tore Supra and Jet (1991)

Moreau, D., Gormezano, C., Agarici, G., Agostini, E., Ane, J. M., Auge, N., ...

Recent Lower Hybrid Current Drive (LHCD) experiments in TORE SUPRA and JET are reported. Large multijunction launchers have allowed the coupling of 5 MW to the plasma for several seconds with a...

Visual problems in the elderly population and implications for services.

Wormald, R. P., Wright, L. A., Courtney, P., Beaumont, B., Haines, A. P.

OBJECTIVE--To determine the prevalence of visual disability and common eye disease among elderly people in inner London. DESIGN--Cross sectional random sample survey. SETTING--Inner London health...

Is it possible and worth keeping track of deaths within general practice? Results of a 15 year observational study

Beaumont, B, Hurwitz, B

Aim: To assess the value of maintaining a death register in a general practice with particular reference to monitoring quality of care.

Back pain.

Beaumont, B., Paice, E.

1. Back pain is very common and can be the result of a wide range of different conditions. A detailed history of the complaint often points towards the cause. Positional backache suggests a...

Cervical cytology.

Beaumont, B., Jenkins, D.

1. Unless there are special clinical indications, regular cervical screening should begin at about the age of 20 and finish at 65. 2. Women aged 40 and over who have never had a smear should be...