Riley, D.J., Mann, M., MacLaren, D.A. , Dastoor, P.C., Allison, W., Teo, K.B.K., Amaratunga, G.A.J. and Milne, W. (2003) Helium detection via field ionization from carbon nanotubes. Nano Letters, 3(10), pp. 1455-1458. (doi: 10.1021/nl034460c)
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Abstract
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.
Item Type: | Articles |
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Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | MacLaren, Professor Donald |
Authors: | Riley, D.J., Mann, M., MacLaren, D.A., Dastoor, P.C., Allison, W., Teo, K.B.K., Amaratunga, G.A.J., and Milne, W. |
Subjects: | Q Science > QC Physics |
College/School: | College of Science and Engineering > School of Physics and Astronomy |
Journal Name: | Nano Letters |
Publisher: | American Chemical Society |
ISSN: | 1530-6984 |
ISSN (Online): | 1530-6992 |
Published Online: | 04 September 2003 |
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