ELFT HÍRADÓ

[László Bottyán <bottyan.laszlo AT wigner.hu>]

Tisztelt Kollégák,

Küldöm a Budapesti Neutron Centrum (BNC) angol nyelvű, Zoom 
webinársorozata nyári szünet utáni első előadásának meghívóját.

Előadó: Faigel Gyula (Magyar Tudományos Akadémia)
Cím: "Pulsed x-ray sources and their applications"
Időpont:  2020.10.07. szerda 14:00-14:45 + diszkusszió
Zoom video link: https://www.bnc.hu honlapon, vagy közvetlenül
https://us02web.zoom.us/j/89357230887?pwd=a1dkSnNVVEhtTzJlSWdkRy96OGhNQT09

Üdvözlettel: Bottyán László

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Dear Colleagues, Users, Supporters and Fans of BNC,

We would like to draw your attention to the upcoming webinar of the 
Budapest Neutron Centre (BNC). The webinars are given biweekly in English 
on Wednesday afternoons by local and international experts of the 
respective field.

The next presentation given on:

7 October, 2020   14:00-14:45 + discussion (CEST)  by

Gyula Faigel (Hungarian Academy of Sciences) is entitled:

      "Pulsed x-ray sources and their applications"

Details on the seminar series, and on how to join the zoom video sessions up to 
30 minutes  before the webinar start time are available in the 'News'
section of the BNC home page at https://www.bnc.hu. Please join the
presentation then the discussions following the webinar. Should you 
miss the event, the recorded videos of the webinars can be played back at 
www.bnc.hu.

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BNC webinars on pulsed photon sources
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Short pulsed analysing radiation of high intensity enables to study 
evolution of chemical, biological processes, fast structural 
transformations. Recently commissioned high brilliance photon sources, 
synchrotrons, optical and x-ray lasers produce unprecedentedly high energy 
density on the target at a high repetition rate never seen before – 
opening fields of exciting research of reactions that have been far too 
rapid to be captured by former methods. The wavelength of the X-rays falls 
into the range of a few hundreds of to a few nanometers, enabling 
measurements on the atomic length scale. Hungarian researchers have 
successfully contributed to the construction of the Extreme Light Source 
(ELI) and the European X-ray Free Electron Laser (EuXFEL) EU 
infrastructures and have gained regular access to these state-of-the-art 
analytic facilities.

With the help of the distinguished presenters of the next BNC webinars we 
look deeper into this field to learn about the principles, present 
applications and future promises of the advanced pulsed photon sources.

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Webinar #1:
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"Pulsed x-ray sources and their applications"
Wednesday, 7 October, 2020 / 14:00 – 14:45 + discussion
Speaker: Gyula Faigel (Hungarian Academy of Sciences)

CONNECT TO THE EVENT HERE
https://us02web.zoom.us/j/89357230887?pwd=a1dkSnNVVEhtTzJlSWdkRy96OGhNQT09

Abstract:
In the last 50 years several types of pulsed x-ray sources have been 
developed. This lecture concentrates on those, which are built as 
dedicated user facility in the hard x-ray regime. Three types are 
introduced: synchrotron radiation, x-ray free electron laser and 
laser-driven sources. The capabilities of these facilities are illustrated 
by several applications.

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Webinar #2: 
~~~~~~~~~~~~~~~
      "Femtosecond X-ray pulses in action (molecular movies, ultrafast
           chemical reactions, magnetic switching and more..."
Wednesday, 21 October, 2020   14:00-14:45+discussion (CEST)  
Speaker: Zoltán Németh (Wigner Research Centre for Physics, Budapest):


Abstract:
Modern pulsed X-ray sources offer unprecedented short and intense X-ray 
probes to study physical and chemical phenomena in their intrinsic time 
domains or at extreme conditions. 
The new era of time resolved investigations opened by the novel X-ray free 
electron lasers, like the European XFEL in Schenefeld, and ultra strong
laser pulses, like the ELI initiative, enables to unravel the nature 
of femtosecond scale photochemical reactions, spin-state switching, ultrafast 
rearrangement of photoactive biochemical entities, temporal fluctuations of 
skyrmions, to name a few recent successful experiment. 
This review aims to give an introductory overview of recent and prospective 
applications of these new X-ray sources.

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