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Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.13/27643

Title: Helium detection via field ionization from carbon nanotubes
Author/Creator: Riley, David J.; Mann, Mark; MacLaren, Donald A.; Dastoor, Paul C.; Allison, William; Teo, Kenneth B. K.; Amaratunga, Gehan A. J.; Milne, William
Description: A novel, high-efficiency detector for neutral atoms such as helium is described. The design uses multiwalled carbon nanotubes (MWNTs), grown by chemical vapor deposition on a steel support wire. Application of a positive bias to the MWNTs generates electric fields sufficient to field-ionize passing gas-phase atoms. Under ultrahigh vacuum conditions, the detector was demonstrated to be capable of ionising and detecting even helium gas, the element with the highest ionization potential.
Relation: Nano Letters Vol. 3, Issue 10, p. 1455-1458
Publisher Link: http://dx.doi.org/10.1021/nl034460c
Date: 2003
Publisher: American Chemical Society
Keyword(s): helium; carbon nanotubes
Resource Type: journal article
Identifier: http://hdl.handle.net/1959.13/27643
Identifier: ISSN:1530-6984

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