Search Results - "King, D.B."

Tritium neutral beam injection on JET: calibration and plasma measurements of stored energy by King, D.B., Sharma, R., Challis, C.D., Bleasdale, A., Delabie, E.G., Douai, D., Keeling, D., Lerche, E., Lennholm, M., Mailloux, J., Matthews, G., Nicassio, M., Štancar, Ž., Wilson, T.

“…Abstract Neutral beam injection (NBI) is a flexible auxiliary heating method for tokamak plasmas, capable of being efficiently coupled to the various plasma…”
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Predictive JET current ramp-up modelling using QuaLiKiz-neural-network by Ho, A., Citrin, J., Challis, C.D., Bourdelle, C., Casson, F.J., Garcia, J., Hobirk, J., Kappatou, A., Keeling, D.L., King, D.B., Koechl, F., Lerche, E., Maggi, C.F., Mailloux, J.

“…Abstract This work applies the coupled JINTRAC and QuaLiKiz-neural-network (QLKNN) model on the ohmic current ramp-up phase of a JET D discharge. The chosen…”
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JET D-T scenario with optimized non-thermal fusion by Maslov, M., Lerche, E., Auriemma, F., Belli, E., Bourdelle, C., Challis, C.D., Chomiczewska, A., Dal Molin, A., Eriksson, J., Garcia, J., Hobirk, J., Ivanova-Stanik, I., Jacquet, Ph, Kappatou, A., Kazakov, Y., Keeling, D.L., King, D.B., Kiptily, V., Kirov, K., Kos, D., Lorenzini, R., De La Luna, E., Maggi, C.F., Mailloux, J., Mantica, P., Marin, M., Matthews, G., Monakhov, I., Nocente, M., Pucella, G., Rigamonti, D., Rimini, F., Saarelma, S., Salewski, M., Solano, E.R., Štancar, Ž., Stankunas, G., Sun, H., Tardocchi, M., Van Eester, D.

“…Abstract In JET deuterium-tritium (D-T) plasmas, the fusion power is produced through thermonuclear reactions and reactions between thermal ions and fast…”
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Effect of the isotope mass on pedestal structure, transport and stability in D, D/T and T plasmas at similar β N and gas rate in JET-ILW type I ELMy H-modes by Frassinetti, L., Perez von Thun, C., Chapman-Oplopoiou, B., Nyström, H., Poradzinski, M., Hillesheim, J.C., Horvath, L., Maggi, C.F., Saarelma, S., Stagni, A., Szepesi, G., Bleasdale, A., Chomiczewska, A., Morales, R.B., Brix, M., Carvalho, P., Dunai, D., Field, A.R., Fontdecaba, J.M., Sun, H.J., King, D.B., Kos, D., Kowalska, E., Labit, B., Lennholm, M., Menmuir, S., Rachlew, E., Refy, D.I., Schneider, P.A., Solano, E.R., Vianello, N., Vécsei, M.

“…Abstract The work describes the pedestal structure, transport and stability in an effective mass ( A eff ) scan from pure deuterium to pure tritium plasmas…”
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The broadening of SOL profiles in JET tritium plasma and its impact on machine operation by Sun, H.J., Silburn, S.A., Carvalho, I.S., King, D.B., Giroud, C., Fishpool, G., Matthews, G.F., Henriques, R.B., Keeling, D.L., Rimini, F.G., Garzotti, L., Frigione, D., Van Eester, D., Groth, M., Flanagan, J., Kos, D., Viola, B., Boboc, A., Shi, P., Mayoral, M.-L., Mailloux, J., Maggi, C., Huber, A., Douai, D., Vianello, N., Lomas, P.J., Lennholm, M., Maslov, M., Kirov, K., Jacquet, P., Lowry, C.G., Baruzzo, M., Stuart, C., Mitchell, J., Horvath, L., McDonald, D.C.

“…Abstract Unusually high power loads on the beryllium limiter caused by neutral beam re-ionisation, and much cooler divertor target surfaces were observed…”
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Metrics for Comparison Between Displacement Damage due to Ion Beam and Neutron Irradiation in Silicon BJTs by Bielejec, E., Vizkelethy, G., Fleming, R.M., King, D.B.

“…We present a series of metrics for comparison between displacement damage due to heavy ion and neutron irradiation in silicon bipolar junction transistors. We…”
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Comparison Between Experimental and Simulation Results for Ion Beam and Neutron Irradiations in Silicon Bipolar Junction Transistors by Bielejec, E., Vizkelethy, G., Fleming, R.M., Wampler, W.R., Myers, S.M., King, D.B.

“…We report on an early-time inverse gain comparison between ion and neutron irradiated silicon bipolar junction transistors. We find ion irradiations to be an…”
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Simultaneous Evaluation of Neutron Spectra and 1-MeV-Equivalent (Si) Fluences at SPR-III and ACRR by Williams, J.G., Griffin, P.J., King, D.B., Vehar, D.W., Schnauber, T., Luker, S.M., De Priest, K.R.

“…Simultaneous least-squares adjustment of calculated neutron spectra in the central cavity of SPR-III and in the Pb-B 4 C bucket at ACRR is described, and the…”
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Considerations on the Relationship Between Dosimetry Metrics and Experimental Conditions by Griffin, P.J., Vehar, D.W., Cooper, P.J., King, D.B.

“…Analysts, experimenters, and facilities have fallen into some poor practices in reporting many dosimetry metrics. While the experienced dosimetrist often knows…”
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Winter PRIMER Ocean-Acoustic Solitary Wave Modeling Studies by Warn-Varnas, A.C., Chin-Bing, S.A., King, D.B., Hawkins, J.A., Lamb, K.G., Lynch, J.F.

“…In this paper, we present results from a joint oceanographic-acoustic study of solitary waves and their effects during the 1997 winter PRIMER4 experiment on…”
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BaO/W(1 0 0) thermionic emitters and the effects of Sc, Y, La, and the density functional used in computations by Jennison, D.R., Schultz, P.A., King, D.B., Zavadil, K.R.

“…Density functional theory is used to predict workfunctions, φ. For relaxed clean W(1 0 0), the local density approximation (LDA) agrees with experiment better…”
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Diamond PCD for Reactor active dosimetry applications by Griffin, P.J., Luker, S.M., King, D.B., DePriest, K.R., Hohlfelder, R.J., Suo-Anttila, A.J.

“…This work reports on the development, calibration, and application of a radiation-hardened diamond photoconducting detector (PCD) for active ionizing dose…”
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Fusion reactor start-up without an external tritium source by Zheng, S., King, D.B., Garzotti, L., Surrey, E., Todd, T.N.

“…•Investigated the feasibility (including plasma physics, neutronics and economics) of starting a fusion reactor from running pure D–D fusion reactor to…”
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Benchmarking geoacoustic inversion methods using range-dependent field data by Fulford, J.K., King, D.B., Chin-Bing, S.A., Chapman, N.R.

“…Over the past decade, inversion methods have been developed and applied to acoustic field data to provide information about unknown ocean-bottom environments…”
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JET machine operations in T D-T by The JET Operations Team (presented by D.B. King), E. Abdelrahman, A. Abdul Hamid, N. Abid, K. Abraham, O. Adabonyan, C. Adlam, M. Afzal, M. Akhtar, V. Aldred, S. Aldworth, S. Aleiferis, M. Ali, R. Alie, R. Allan, H. Allen, E. Alli, M. Allinson, P. Almond, J. Angus, K. Antcliffe, I. Antoniou, L. Appel, C. Appelbee, C. Aramunde, N. Archer, S. Aria, H. Arkuszynski, M. Arshad, G. Artaserse, A. Ash, C. Ashe, T. Aue, D. Auld, B. Austin, Y. Austin, C. Ayres, R.B. Morales, S. Baker, S. Bakes, I. Balboa, C. Balshaw, N. Balshaw, J. Banks, J. Banner, A. Barnard, M. Barnard, M. Baruzzo, C. Basagiannis, S. Bathe Hariyanandan, P. Batistoni, R. Baughan, P. Beaumont, D. Beckett, A. Begolli, M. Beldishevski, K. Bell, E. Belonohy, J. Bentley, J. Bernardo, M. Berry, J. Bhatt, S. Bickerton, J. Bielecki, W. Bird, D. Blackett, K. Blackman, S. Blake, P. Blatchford, A. Bleasdale, A. Boboc, J. Booth, P. Boulting, M. Bowden, C. Boyd, K. Boyd, R. Bracey, D. Brennan, A. Brett, M. Bright, M. Brix, I. Brooks, B. Brown, P. Brown, M. Brown, P. Brummitt, B. Viola, A. Buckingham, M. Buckley, J. Bumpass, M. Burford, A. Burgess, J. Burton-Sweeten, A. Busse, D. Butcher, P. Cahill, P. Camp, I. Campbell, R. Canavan, J. Cane

“…JET, the world’s largest operating tokamak with unique Be/W wall and tritium handling capability, completed a Deuterium-Tritium (D-T) campaign in 2021 (Maggi…”
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Test simulation of neutron damage to electronic components using accelerator facilities by King, D.B., Fleming, R.M., Bielejec, E.S., McDonald, J.K., Vizkelethy, G.

“…The purpose of this work is to demonstrate equivalent bipolar transistor damage response to neutrons and silicon ions. We report on irradiation tests performed…”
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Performance of upgraded JET neutral beam injectors by Ćirić, D., Ash, A.D., Crowley, B., Day, I.E., Gee, S.J., Hackett, L.J., Homfray, D.A., Jenkins, I., Jones, T.T.C., Keeling, D., King, D.B., King, R.F., Kovari, M., McAdams, R., Surrey, E., Young, D., Zacks, J.

“…The JET neutral beam injection (NBI) system is undergoing an upgrade of both beam power and pulse duration, which will be completed in 2011. In order to obtain…”
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Effects on acoustics caused by ocean solitons, Part A: Oceanography by Warn-Varnas, A., Chin-Bing, S.A., King, D.B., Hawkins, J., Lamb, K.

“…Our work addresses the link between internal solitary waves and acoustics. The location of the study is in the Yellow Sea south of the Shandong peninsula…”
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Damage Equivalence of Heavy Ions in Silicon Bipolar Junction Transistors by Bielejec, E., Vizkelethy, G., Kolb, N.R., King, D.B., Doyle, B.L.

“…Results of displacement damage correlation between neutrons, light ions and heavy ions in bipolar junction transistors are presented. Inverse gain degradation…”
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Effects on acoustics caused by ocean solitons, Part B: Acoustics by Chin-Bing, S.A., Warn-Varnas, A., King, D.B., Hawkins, J., Lamb, K.

“…Large amplitude internal solitary waves in the ocean can interfere with underwater acoustic signals. For certain acoustic parameters (source depth, receiver…”
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