Hydrogen ion beam generated by a current-free double layer in a helicon plasma

C. Charles

doi:10.1063/1.1643548

Hydrogen ion beam generated by a current-free double layer in a helicon plasma

C. Charles^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

59 Citations (Scopus)

Abstract

The role, played by a double layer (DL) in helicon produced expanding plasmas, in obtaining a supersonic ion beam of H₂⁺ was analyzed. A retarding field energy analyzer (RFEA) positioned downstream of the DL helped in detecting the supersonic ion beam. The conditions for DL were affected by the electron dynamics. No change was observed in ion beam energy, relative to the lower peak at local plasma potential. The plasma conditions could be varied through the changes in plasma potential. The velocity and density ratio of hydrogen ion beam were found ∼2.1c_s and 0.2 respectively.

Original language	English
Pages (from-to)	332-334
Number of pages	3
Journal	Applied Physics Letters
Volume	84
Issue number	3
DOIs	https://doi.org/10.1063/1.1643548
Publication status	Published - 19 Jan 2004

Access to Document

10.1063/1.1643548

Cite this

@article{52a6409885a1417ab888aa37c3895e93,

title = "Hydrogen ion beam generated by a current-free double layer in a helicon plasma",

abstract = "The role, played by a double layer (DL) in helicon produced expanding plasmas, in obtaining a supersonic ion beam of H2+ was analyzed. A retarding field energy analyzer (RFEA) positioned downstream of the DL helped in detecting the supersonic ion beam. The conditions for DL were affected by the electron dynamics. No change was observed in ion beam energy, relative to the lower peak at local plasma potential. The plasma conditions could be varied through the changes in plasma potential. The velocity and density ratio of hydrogen ion beam were found ∼2.1cs and 0.2 respectively.",

author = "C. Charles",

year = "2004",

month = jan,

day = "19",

doi = "10.1063/1.1643548",

language = "English",

volume = "84",

pages = "332--334",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics",

number = "3",

}

TY - JOUR

T1 - Hydrogen ion beam generated by a current-free double layer in a helicon plasma

AU - Charles, C.

PY - 2004/1/19

Y1 - 2004/1/19

N2 - The role, played by a double layer (DL) in helicon produced expanding plasmas, in obtaining a supersonic ion beam of H2+ was analyzed. A retarding field energy analyzer (RFEA) positioned downstream of the DL helped in detecting the supersonic ion beam. The conditions for DL were affected by the electron dynamics. No change was observed in ion beam energy, relative to the lower peak at local plasma potential. The plasma conditions could be varied through the changes in plasma potential. The velocity and density ratio of hydrogen ion beam were found ∼2.1cs and 0.2 respectively.

AB - The role, played by a double layer (DL) in helicon produced expanding plasmas, in obtaining a supersonic ion beam of H2+ was analyzed. A retarding field energy analyzer (RFEA) positioned downstream of the DL helped in detecting the supersonic ion beam. The conditions for DL were affected by the electron dynamics. No change was observed in ion beam energy, relative to the lower peak at local plasma potential. The plasma conditions could be varied through the changes in plasma potential. The velocity and density ratio of hydrogen ion beam were found ∼2.1cs and 0.2 respectively.

UR - http://www.scopus.com/inward/record.url?scp=1242310278&partnerID=8YFLogxK

U2 - 10.1063/1.1643548

DO - 10.1063/1.1643548

M3 - Article

SN - 0003-6951

VL - 84

SP - 332

EP - 334

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 3

ER -

Hydrogen ion beam generated by a current-free double layer in a helicon plasma

Abstract

Access to Document

Other files and links

Fingerprint

Cite this