-
Plasma properties in the vicinity of the last closed flux surface in hydrogen and helium fusion plasma dischargesDimitrova, Miglena ...The origin of the bi-Maxwellian electron energy distribution function (EEDF) observed in the scrape-off layer (SOL) of tokamak plasmas by means of Langmuir probes is still under discussion. It has ... been assumed that the ionization of hydrogen and deuterium neutrals by thermal electrons penetrating the SOL from the bulk plasma is the main reason for the appearance of a second Maxwellian. To validate this assumption, radial measurements of the electron temperatures and densities, or the plasma properties in helium plasmas in the GOLEM tokamak and the TJ-II stellarator were performed. The radial profiles of the low-temperature electron group densities follow the trend of the calculated radial profiles of the electron sources arising from the ionization of neutrals in both deuterium and helium plasmas in TJ-II. The difference in the radial location where the bi-Maxwellian EEDF appears can be explained by the difference in the rate coefficients for ionization of deuterium and helium. The results of probe measurements in GOLEM and the WEST tokamak divertor, at one radial location in the SOL, are compatible with the hypothesis concerning the ionization of neutral atoms and the type of the EEDF.Source: Plasma physics and controlled fusion. - ISSN 0741-3335 (Vol. 66, nr. 7, [article no.] 075022, 2024, str. 1-13)Type of material - article, component part ; adult, seriousPublish date - 2024Language - englishCOBISS.SI-ID - 199026435
Author
Dimitrova, Miglena |
López-Bruna, D. |
Gunn, James Paul |
Kovačič, Jernej, 1982- |
Svoboda, V. |
Stöckel, Jan
Topics
helium |
ionization of neutral atoms |
electron temperature |
plasma diagnostics–probes |
helij |
ionizacija nevtralnih atomov |
elektronska temperatura |
diagnostika plazme–sonde
![loading ... loading ...](themes/default/img/ajax-loading.gif)
source: Plasma physics and controlled fusion. - ISSN 0741-3335 (Vol. 66, nr. 7, [article no.] 075022, 2024, str. 1-13)
![loading ... loading ...](themes/default/img/ajax-loading.gif)
![loading ... loading ...](themes/default/img/ajax-loading.gif)
![loading ... loading ...](themes/default/img/ajax-loading.gif)
Shelf entry
Permalink
- URL:
Impact factor
Access to the JCR database is permitted only to users from Slovenia. Your current IP address is not on the list of IP addresses with access permission, and authentication with the relevant AAI accout is required.
Year | Impact factor | Edition | Category | Classification | ||||
---|---|---|---|---|---|---|---|---|
JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
Select the library membership card:
DRS, in which the journal is indexed
Database name | Field | Year |
---|
Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
---|---|
Dimitrova, Miglena | ![]() |
López-Bruna, D. | ![]() |
Gunn, James Paul | ![]() |
Kovačič, Jernej, 1982- | 30680 |
Svoboda, V. | ![]() |
Stöckel, Jan | ![]() |
Select pickup location:
Material pickup by post
Notification
Subject headings in COBISS General List of Subject Headings
Select pickup location
Pickup location | Material status | Reservation |
---|
Please wait a moment.