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SUMMARY:Steven Jepeal (PhD candidate at MIT)
DTSTART:20200618T160000Z
DTEND:20200618T180000Z
DTSTAMP:20260422T230721Z
UID:NUCLEAR_FUSION/1
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/NUCLEAR_FUSI
 ON/1/">Predicting fusion radiation damage using protons</a>\nby Steven Jep
 eal (PhD candidate at MIT) as part of Talks on contemporary research in ma
 gnetic confinement nuclear fusion\n\n\nAbstract\nThe interior of a fusion 
 power plant will be an extreme radiation environment\, outside the realm o
 f humanities experience with radiation sources like fission reactors. The 
 materials that make up these power plants must withstand heavy exposure to
  high energy neutrons\, which damage materials\, degrading their propertie
 s\, and driving the components towards failure. Without the ability to acc
 urately reproduce the expected neutron environment through experimentation
  or simulation\, the first fusion power plants face enormous risk of radia
 tion-induced failure of their key components. In order to improve our abil
 ity to predict material performance under fusion neutron irradiation\, we 
 need new experimental methods for high-fidelity radiation damage testing. 
 Intermediate energy (10-30 MeV) proton irradiation is an under-utilized ir
 radiation technique that could produce radiation damage with high fidelity
  to a fusion environment Recently\, advances in particle accelerator techn
 ology have allowed sources of intermediate energy (10+ MeV) protons to bec
 ome commercially available at a cost and size appropriate for university l
 abs. This talk will give a high-level overview of our work to demonstrate 
 through simulations\, theoretical analysis\, and experimentation\, that pr
 otons could play a pivotal role in predicting fusion material performance\
 , ultimately improving the probability of the success of fusion as a globa
 l power source.\n
LOCATION:https://researchseminars.org/talk/NUCLEAR_FUSION/1/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Remi Delaporte-Mathurin (IRFM\,CEA)
DTSTART:20200709T160000Z
DTEND:20200709T180000Z
DTSTAMP:20260422T230721Z
UID:NUCLEAR_FUSION/2
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/NUCLEAR_FUSI
 ON/2/">Tracking hydrogen in ITER's tungsten plasma facing components</a>\n
 by Remi Delaporte-Mathurin (IRFM\,CEA) as part of Talks on contemporary re
 search in magnetic confinement nuclear fusion\n\n\nAbstract\nHydrogen is o
 ne of the key ingredients for fusion energy. During operations\, tokamak w
 alls are under bombardment of highly energetic hydrogen ions\, which can p
 enetrate the materials. Knowing the hydrogen content of these plasma-facin
 g materials is crucial for several reasons. First from a safety point of v
 iew\, the tritium content in the inner-vessel of the tokamak is limited to
  700 g. Secondly\, tritium penetrating the first wall material could reach
  the cooling system which must then be purified. Finally\, hydrogen can br
 ittle the materials and therefore reduce the lifetime of plasma facing com
 ponents. The behaviour of hydrogen can be investigated by lab experiments 
 but also simulated with thermokinetic models which is the topic of this ta
 lk. We’ll present the finite element code FESTIM developed by CEA and CN
 RS. A particular focus is made on ITER divertor and tungsten monoblocks an
 d hydrogen retention is estimated in the whole divertor.\n
LOCATION:https://researchseminars.org/talk/NUCLEAR_FUSION/2/
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BEGIN:VEVENT
SUMMARY:Dr. Francisco Javier Artola Such (ITER)
DTSTART:20200724T160000Z
DTEND:20200724T170000Z
DTSTAMP:20260422T230721Z
UID:NUCLEAR_FUSION/3
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/NUCLEAR_FUSI
 ON/3/">Coupling plasma and wall currents for disruption simulations</a>\nb
 y Dr. Francisco Javier Artola Such (ITER) as part of Talks on contemporary
  research in magnetic confinement nuclear fusion\n\n\nAbstract\nThe talk w
 ill be about disruptions events that can arise in tokamaks producing large
  heat and electromagnetic loads on the structures surrounding the plasma. 
 The dynamics of these events are complex and 3D simulations are required t
 o understand present experiments and to assist the design and operation of
  future machines. Disruptions induce wall currents which in turn determine
  the plasma motion\, therefore it is necessary to couple these currents to
  the plasma in a self-consistent form. In the presentation\, different met
 hods for such coupling are explained for 3D MHD codes and examples of 3D M
 HD simulations of Vertical Displacement Events (VDEs) are also presented.\
 nJoin the talk via the Zoom link "zoom.us/s/82145836365" using the passwor
 d "593D9FBA" (without quotations) on Friday\, 24/07/2020 at 18:00 Hrs. (CE
 T\, Prague).\nFor more details\, visit\nhttps://fusionep-talks.egyplasma.c
 om/events/event.php?eventID=28\n
LOCATION:https://researchseminars.org/talk/NUCLEAR_FUSION/3/
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BEGIN:VEVENT
SUMMARY:Florian Laggner\, PhD (PPPL\, princeton)
DTSTART:20200903T160000Z
DTEND:20200903T180000Z
DTSTAMP:20260422T230721Z
UID:NUCLEAR_FUSION/4
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/NUCLEAR_FUSI
 ON/4/">Diagnosing fusion plasmas: from concept to reality Implementing LLA
 MA to measure the edge neutral density in DIII-D</a>\nby Florian Laggner\,
  PhD (PPPL\, princeton) as part of Talks on contemporary research in magne
 tic confinement nuclear fusion\n\n\nAbstract\nThe fundamental understandin
 g of the behavior of fusion plasmas is based on sophisticated measurements
  that allow non-invasive diagnosis of certain parameters. This presentatio
 n outlines the path from the need to determine a certain quantity\, to a c
 onceptual measurement principle towards an actual implementation on a fusi
 on device\, using the example of the LLAMA diagnostic. LLAMA stands for Ly
 man-Alpha Measurement Apparatus\, a multi-channel\, bandpass filter pinhol
 e camera system and has been recently installed at DIII-D. It measures the
  Lyman-Alpha brightness profiles at the plasma edge\, enabling the inferen
 ce of edge neutral density profiles to study sourcing of plasma particles.
  This opens a previously hardly accessible field of studies with specific 
 importance when scaling towards large scale future fusion devices\, where 
 the sourcing from neutrals is expected to be drastically reduced.\n
LOCATION:https://researchseminars.org/talk/NUCLEAR_FUSION/4/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Prof. Guido van Oost
DTSTART:20200914T150000Z
DTEND:20200914T160000Z
DTSTAMP:20260422T230721Z
UID:NUCLEAR_FUSION/5
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/NUCLEAR_FUSI
 ON/5/">The European Master in Fusion Science and Engineering Physics</a>\n
 by Prof. Guido van Oost as part of Talks on contemporary research in magne
 tic confinement nuclear fusion\n\nAbstract: TBA\n
LOCATION:https://researchseminars.org/talk/NUCLEAR_FUSION/5/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Sam Gibson\, PhD candidate (Durham University/UKAEA)
DTSTART:20201015T140000Z
DTEND:20201015T150000Z
DTSTAMP:20260422T230721Z
UID:NUCLEAR_FUSION/6
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/NUCLEAR_FUSI
 ON/6/">Measurement of the Current Profile in Tokamak Fusion Plasmas</a>\nb
 y Sam Gibson\, PhD candidate (Durham University/UKAEA) as part of Talks on
  contemporary research in magnetic confinement nuclear fusion\n\nAbstract:
  TBA\n
LOCATION:https://researchseminars.org/talk/NUCLEAR_FUSION/6/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Andrew Nelson (Princeton University)
DTSTART:20201105T160000Z
DTEND:20201105T170000Z
DTSTAMP:20260422T230721Z
UID:NUCLEAR_FUSION/7
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/NUCLEAR_FUSI
 ON/7/">A practical introduction to the H-mode pedestal: ELM and ELM-free r
 egimes</a>\nby Andrew Nelson (Princeton University) as part of Talks on co
 ntemporary research in magnetic confinement nuclear fusion\n\nAbstract: TB
 A\n
LOCATION:https://researchseminars.org/talk/NUCLEAR_FUSION/7/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Dr. Alena Gogoleva (UC3M\,Madrid)
DTSTART:20201111T150000Z
DTEND:20201111T160000Z
DTSTAMP:20260422T230721Z
UID:NUCLEAR_FUSION/8
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/NUCLEAR_FUSI
 ON/8/">Trap your alphas: fast particle motion in fusion plasmas</a>\nby Dr
 . Alena Gogoleva (UC3M\,Madrid) as part of Talks on contemporary research 
 in magnetic confinement nuclear fusion\n\n\nAbstract\nOne of the main diff
 iculties to attain economically viable magnetically controlled thermonucle
 ar fusion reactors is the confinement of alpha particles. In toroidally sh
 aped fusion devices with a non-uniform magnetic field\, alpha particles wi
 th small parallel velocity become trapped between areas of the high field\
 , bouncing between reflection points\, that might result in non-zero radia
 l average drifts and their losses. This talk aims to highlight the link be
 tween the alpha particle transport and the confining magnetic field with a
 n emphasis on the trapped particle characterization.\n
LOCATION:https://researchseminars.org/talk/NUCLEAR_FUSION/8/
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