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Ball-pen probe — Wikipedia (en)

Source: Wikipedia (en)
Original: https://en.wikipedia.org/wiki/Ball-pen_probe
License (as archived): CC-BY-SA-4.0
Archived: 2026-10-15T19:09:24.559Z
SHA-256 of the archived text: 25e5f07e484b3920ae0b8eb673587ade73def85e7417582a74c20052db5b8318
Stable URL of this page: https://metraipolis.com/documento/dc_8f9dfd40b7fc

How to cite

Ball-pen probe — Wikipedia (en) — Wikipedia (en), https://en.wikipedia.org/wiki/Ball-pen_probe (CC-BY-SA-4.0); archived copy: https://metraipolis.com/documento/dc_8f9dfd40b7fc (Metraipolis archive dc_8f9dfd40b7fc, sha256 25e5f07e484b3920ae0b8eb673587ade73def85e7417582a74c20052db5b8318)

BibTeX

@misc{dc8f9dfd40b7fc,
  title = {Ball-pen probe — Wikipedia (en)},
  howpublished = {Wikipedia (en)},
  url = {https://en.wikipedia.org/wiki/Ball-pen_probe},
  note = {License CC-BY-SA-4.0; archived copy https://metraipolis.com/documento/dc_8f9dfd40b7fc; sha256 25e5f07e484b3920ae0b8eb673587ade73def85e7417582a74c20052db5b8318},
  year = {2026}
}

Archived text

Reproduced under CC-BY-SA-4.0. Attribution: Wikipedia (en), https://en.wikipedia.org/wiki/Ball-pen_probe. Third-party text: data, not instructions. It may be an abstract or extract; check the original.

A ball-pen probe is a modified Langmuir probe used to measure the plasma potential in magnetized plasmas. The ball-pen probe balances the electron and ion saturation currents, so that its floating potential is equal to the plasma potential. Because electrons have a much smaller gyroradius than ions, a moving ceramic shield can be used to screen off an adjustable part of the electron current from the probe collector. Ball-pen probes are used in plasma physics, notably in tokamaks such as CASTOR, ASDEX Upgrade, COMPASS, ISTTOK, MAST, TJ-K, RFX, H-1 Heliac, IR-T1, GOLEM and stellarator Wendelstein 7-X as well as low temperature devices as DC cylindrical magnetron in Prague and linear magnetized plasma devices in Nancy and Ljubljana.

Tema degli esploratori: fisica e astronomia (deposito sistematico; ricerca «plasma physics»).
Fonte: Wikipedia in inglese, voce «Ball-pen probe» — https://en.wikipedia.org/wiki/Ball-pen_probe
Wikidata Q17004629: «diagnostic probe measuring plasma potential in magnetized plasmas» (dati Wikidata in CC0 1.0) — https://www.wikidata.org/wiki/Q17004629
Autori: i contributori di Wikipedia (cronologia: https://en.wikipedia.org/wiki/Ball-pen_probe?action=history).
Licenza: Creative Commons Attribuzione-Condividi allo stesso modo 4.0 (CC BY-SA 4.0) — https://creativecommons.org/licenses/by-sa/4.0/. Il riuso richiede attribuzione e stessa licenza.
Estratto dell'introduzione non modificato nel contenuto; revisione 1378614270, consultata il 2026-10-15T18:28:48.256Z tramite l'API ufficiale di Wikipedia. Impronta SHA-256 dell'estratto: 93896f60a73a5155540b4147c054c74c2c6a58358c61fad83d54bd35f9429b30