All Papers - UKAEA Scientific Publications

Showing 1121 - 1130 of 2581 UKAEA Paper Results

UKAEA-CCFE-CP(18)062018

"Global supply of tritium for fusion R&D"
- M. Coleman
- M. Kovari
The tritium start-up inventory required by a tritium self-sufficient DEMO-class fusion reactor is subject to a wide margin of uncertainty, with estimates in the literature varying from less than 1 kg to almost 20 kg for a ~2 GW fusion reactor. If ITER is successful, it is conceivable that multiple DEMO-class devices may be developed in parallel; th…
- Published
UKAEA-CCFE-CP(18)052018

"Shallow pellet fuelling under conditions of RMP ELM mitigation or divertor detachment in ASDEX Upgrade"
- M Valovic
- P T Lang
- A Kirk
- W Suttrop
- M Bernert
- M Cavedon
- M Dunne
- R Fischer
- L Garzotti
- L Guimarais
- F Janky
- N Leuthold
- PJ Mc Carthy
- A Mlynek
- B Plockl
- G Tardini
- E Viezzer
- E Wolfrum
- the ASDEX Upgrade team
- the EUROfusion MST1 team
Pellets are used in ASDEX Upgrade [1] to control plasma density under conditions of ELM control or divertor detachment. In experiments presented here direct fuelling by gas is negligible. Relative pellet size and pellet deposition are aimed to approach those in ITER but differences still remain. ELMs are controlled by n=2 RMPs in feed forward mode …
- Published
UKAEA-CCFE-CP(18)042018

"Impact of an edge resonant transport layer on fast-ion confinement in the ASDEX Upgrade tokamak"
An edge resonant transport layer has been found to explain many aspects of fast-ion confinement under symmetry breaking 3D edge perturbations, such as edge localized modes (ELMs) and externally applied magnetic perturbations (MPs). Experimental measurements in the ASDEX Upgrade (AUG) tokamak show that fast-ion losses in the presence of symmetry bre…
- Preprint
- Published
UKAEA-CCFE-CP(18)032018

"Overview of MAST and first physics results from MAST Upgrade"
- James Harrison
- RJ Akers
- SY Allan
- JS Allcock
- JO Allen
- L Appel
- M Barnes
- N Ben Ayed
- W Boeglin
- C Bowman
- J Bradley
- P Browning
- P Bryant
- M Carr
- M Cecconello
- CD Challis
- S Chapman
- IT Chapman
- GJ Colyer
- S Conroy
- NJ Conway
- M Cox
- G Cunningham
- RO Dendy
- W Dorland
- BD Dudson
- L Easy
- SD Elmore
- T Farley
- X Feng
- AR Field
- A Fil
- GM Fishpool
- M Fitzgerald
Recent results from MAST address key physics issues for ITER operations and the design of future devices, by advancing our understanding of through analysis of high-resolution data and numerical modelling. Modelling of the interaction between filaments with BOUT++ indicates filaments separated by more than 5x their width move independently, and …
- Published
UKAEA-CCFE-CP(18)022018

"Predictive multi-channel flux-driven modelling to optimise ICRH tungsten control in JET"
- F.J. Casson
- H. Patten
- C. Bourdelle
- S. Breton
- J. Citrin
- F. Koechl
- C. Angioni
- Y. Baranov
- R. Bilato
- E. Belli
- C.D. Challis
- G. Corrigan
- A. Czarnecka
- O. Ficker
- L. Garzotti
- M. Goniche
- J.P. Graves
- T. Johnson
- K. Kirov
- P. Knight
- E. Lerche
- M. Mantsinen
- J. Mylnar
- M. Sertoli
- M. Valisa
- JET contributors
- Preprint
- Published
UKAEA-CCFE-CP(18)012018

"Neutral Beam Injection on JET : Effect on Neutron Deficit and Energy Balance"
The dependence of JET neutron deficit and energy balance on neutral beam (PINI) selection has been investigated experimentally. The discrepancy between neutrons predicted and measured during JET pulses has consistently deviated, with the measured neutrons typically being lower than expected by simulation. A number of investigations into this hav…
- Published
UKAEA-CCFE-PR(20)032019

"Radiation Damage and Thermal Recovery of Perovskite Superconductor Yttrium Barium Copper Oxide"
High-temperature superconducting materials are being considered to generate the magnetic fields required for the confinement of plasma in fusion reactors. The present study aims to assess the microstructural degradation resulting from ion implantation at room temperature under two implantation conditions: 0.6 MeV Xe2+ to a fluence of …
- Preprint
UKAEA-CCFE-PR(20)022019

"Slip band characteristics in the presence of grain boundaries in nickel-based superalloy"
Shear strain profiles along slip bands in a modified Rolls-Royce nickel superalloy (RR1000) were analyzed for tensile sample deformed by 2%. The strain increased with distance away from a grain boundary (GB), with maximum shear strain towards the center of the grain, indicating that dislocation nucleation generally occurred in the grain interior. T…
- Preprint
- Published
UKAEA-CCFE-PR(20)012019

"Novel Methods for Recording Stress-Strain Curves in Proton Irradiated Material"
Proton irradiation is often used as a proxy for neutron irradiation but the irradiated layer is typically
- Preprint
- Published
UKAEA-CCFE-CP(19)462019

"The EUROfusion Materials Property Handbook for DEMO In-vessel Components – Status and the challenge to improve confidence level for engineering data"
The development of a specific materials database and handbook, for engineering design of in-vessel components of EU-DEMO, is an essential requirement for assessing the structural integrity by design. For key in-vessel materials, including EURFOER97, CuCrZr, Tungsten and dielectric and optical materials, this development has been ongoing now within …
- Preprint
- Published

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UKAEA Papers

Browse our papers below.

"Global supply of tritium for fusion R&D"

"Shallow pellet fuelling under conditions of RMP ELM mitigation or divertor detachment in ASDEX Upgrade"

"Impact of an edge resonant transport layer on fast-ion confinement in the ASDEX Upgrade tokamak"

"Overview of MAST and first physics results from MAST Upgrade"

"Predictive multi-channel flux-driven modelling to optimise ICRH tungsten control in JET"

"Neutral Beam Injection on JET : Effect on Neutron Deficit and Energy Balance"

"Radiation Damage and Thermal Recovery of Perovskite Superconductor Yttrium Barium Copper Oxide"

"Slip band characteristics in the presence of grain boundaries in nickel-based superalloy"

"Novel Methods for Recording Stress-Strain Curves in Proton Irradiated Material"

"The EUROfusion Materials Property Handbook for DEMO In-vessel Components – Status and the challenge to improve confidence level for engineering data"