ELFT HÍRADÓ

[Réfy Dániel <refy.daniel AT ek-cer.hu>]

FPL Seminar


Iman Ziaeian (ATOMKI, DE) - Investigation of cross sections of Be4+ and 
ground state hydrogen atom collisions in the thermonuclear fusion plasmas 
using classical models


abstract:


Investigation of cross sections of Be4+ and ground state hydrogen atom 
collisions in the thermonuclear fusion plasmas using classical models

 

I Ziaeian(a),(b), K Tőkési (a)

(a) Institute for Nuclear Research (Atomki), 4026 Debrecen Bem tér 18/c, 
Hungary

(b) Doctoral School of Physics, Faculty of Science and Technology, University 
of Debrecen, P.O. Box 400, H-4002, Debrecen, Hungary

 

In recent decades, reactors such as the International Thermonuclear 
Experimental Reactor (ITER) have taken a significant step in supplying energy 
cleanly and safely by developing power plants whose energy is produced due to 
the nuclear fusion process. Due to the unique thermophysical properties and 
low atomic number, beryllium is defined as a plasma-facing material. 
Therefore, it plays a key role in the wall structure of next-generation 
fusion reactors. On the other hand, impurities are one of the main problems 
in controlled thermonuclear fusion plasmas. As a common plasma impurity, Be 
ions also play a role in the loss of radiant energy that causes the plasma to 
cool when colliding with the primary plasma components such as neutral 
hydrogen atoms. To determine the Be impurities in the plasma, knowledge of 
the cross section for various channels of interaction such as ionization, 
electron capture, excitation, and state-selective electron capture is very 
important.  

The standard three-body classical trajectory Monte Carlo method (CTMC) cannot 
compete with quantum calculation in many aspects because of lacking the 
quantum feature of the collisions [1]. Therefore, we developed a three-body 
quasi-classical Monte Carlo model taking into account the quantum features of 
the collision system, where the Heisenberg correction term is added to the 
standard three-body classical trajectory Monte Carlo model [2]. In our 
research work, we use both the standard CTMC and the QCTMC-KW models to show 
the ionization [3], electron capture [3] , excitation [3], and 
state-selective cross sections in Be4+ and H(1s) collisions [4-6]. The 
calculations were performed in the impact energy range between 10-1000 
keV/amu. We show that the QTMC-KW model may have an alternative of the 
quantum-mechanical models providing the same results with maybe low 
computation efforts [7].

 

 

References

[1] K Tőkési and G Hock, Versatility of the exit channels in the three-body 
CTMC method, Nucl. Instrum Meth. Phys. Res. B 86, (1994), 201-204

[2] I Ziaeian and K Tőkési, The effects of Heisenberg constraint on the 
classical cross sections in proton hydrogen collision. To be published in 
Physical Review A.

[3] I Ziaeian and K Tőkési,  Interaction of Be4+ and ground state hydrogen 
atom-classical treatment of the collision, Atoms 8, (2020), 27-38

[4] I Ziaeian and K Tőkési,  State-selective charge exchange cross sections 
in Be4+-H(2lm) collision based on the classical trajectory Monte Carlo 
method, EPJD J. 75, (2021), 138-142

[5] I Ziaeian and K Tőkési, State selective classical electron capture cross 
sections in Be4+ and H(1s) collisions with mimicking quantum effect. Accepted 
for publication in Scientific Report.

[6] I Ziaeian and K Tőkési, nl-selective classical charge exchange cross 
sections in Be4+ and ground state hydrogen atom collisions. To be published 
in Physics Letter A.

[7] I Ziaeian and K Tőkési, State- selective electron capture cross sections 
in collision between fully striped ions and ground state hydrogen – classical 
treatment of the collision. To be published in Atomic and Nuclear Data 
Tables. 

 

Time: 2021.10.14. 14:00 CEST 

(event link 
<https://calendar.google.com/event?action=TEMPLATE&tmeid=ODE0NXFzNHFjYnBvczA5ZnNlaWY4OTE3ajggdGtrM2hjZGYzczY0NWMyZzJkbWtkbzVqcGtAZw&tmsrc=tkk3hcdf3s645c2g2dmkdo5jpk%40group.calendar.google.com>
 ,  
<https://calendar.google.com/calendar/embed?src=tkk3hcdf3s645c2g2dmkdo5jpk%40group.calendar.google.com&ctz=Europe%2FBudapest>
 calendar link)

 

Location:

Live meeting at EK building 6, 2nd floor, 217 – seminar room

Online meeting, will be broadcasted through Teams 
<https://teams.microsoft.com/l/meetup-join/19%3a2fd34a2f62ff4f05a2737f2c10707755%40thread.tacv2/1633104984934?context=%7b%22Tid%22%3a%22f44a99b6-b8f5-4e2e-983e-b01357a9fd32%22%2c%22Oid%22%3a%22e7ca9e30-30e7-4244-b189-d0a08027ee91%22%7d>
 .

 

Kind regards: Daniel Refy

 

 <http://www.ek-cer.hu/> 
Dániel Imre RÉFY
Physicist
Fusion Plasma Physics Department 

Atomic Energy Research Institute 
Centre for Energy Research
Eötvös Loránd Research Network
29-33. Konkoly-Thege Miklós út, Budapest, 1121, Hungary 

Mobile: +36 20 36 28 449
Website:  <http://www.ek-cer.hu> ek-cer.hu   <http://www.magfuzio.hu> 
magfuzio.hu 
Follow us on:  <https://www.facebook.com/EnergiatudomanyiKutatokozpont> 
Facebook  <https://www.linkedin.com/company/centre-for-energy-research> 
Linkedin  <https://www.youtube.com/channel/UCRPgD9aHZKGHMw87MU_LH0g> Youtube

-- 
You received this message because you are subscribed to the Google Groups 
"NTI-fuzio" group.
To unsubscribe from this group and stop receiving emails from it, send an 
email to nti-fuzio+unsubscribe AT googlegroups.com 
<mailto:nti-fuzio+unsubscribe AT googlegroups.com> .
To view this discussion on the web visit 
https://groups.google.com/d/msgid/nti-fuzio/000501d7b6e2%2477bbcee0%2467336ca0%24%40ek-cer.hu
 
<https://groups.google.com/d/msgid/nti-fuzio/000501d7b6e2%2477bbcee0%2467336ca0%24%40ek-cer.hu?utm_medium=email&utm_source=footer>
 .

Attachment: Iman-Tokesi-Oktober14.pdf
Description: Adobe PDF document