Carbon nanotube based cathodes for microwave amplifiers

P. Legagneux; N. Le Sech; P. Guiset; L. Gangloff; C. Cojocaru; J. P. Schnell; D. Pribat; K. B.K. Teo; J. Robertson; W. I. Milne; F. André; Y. Rozier; D. Dieumegard

doi:10.1109/IVELEC.2009.5193378

Carbon nanotube based cathodes for microwave amplifiers

P. Legagneux
, N. Le Sech
, P. Guiset
, L. Gangloff
, C. Cojocaru
, J. P. Schnell
, D. Pribat
, K. B.K. Teo
, J. Robertson
, W. I. Milne
, F. André
, Y. Rozier
, D. Dieumegard

University of Cambridge
Thales Group

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

We have studied two different kinds of electron tubes using a cold field emission cathode as the electron source. This cathode is an array of vertically aligned multiwall carbon nanotubes. The first device is a triode. With this device, we demonstrated the modulation at 32 GHZ of a 1.4 A/cm2 peak current density with a 82% modulation ratio. The second device is a traveling wave tube. For this device, the objective is to test a cathode delivering a 2 A/cm ² electron beam.

Original language	English
Title of host publication	2009 IEEE International Vacuum Electronics Conference, IVEC 2009
Pages	80-81
Number of pages	2
DOIs	https://doi.org/10.1109/IVELEC.2009.5193378
Publication status	Published - 20 Nov 2009
Event	2009 IEEE International Vacuum Electronics Conference, IVEC 2009 - Rome, Italy Duration: 28 Apr 2009 → 30 Apr 2009

Publication series

Name	2009 IEEE International Vacuum Electronics Conference, IVEC 2009

Conference

Conference	2009 IEEE International Vacuum Electronics Conference, IVEC 2009
Country/Territory	Italy
City	Rome
Period	28/04/09 → 30/04/09

Keywords

Carbon nanotubes
Cold cathode
Field emission
Microwave amplifier

Access to Document

10.1109/IVELEC.2009.5193378

Cite this

Legagneux, P., Sech, N. L., Guiset, P., Gangloff, L., Cojocaru, C., Schnell, J. P., Pribat, D., Teo, K. B. K., Robertson, J., Milne, W. I., André, F., Rozier, Y., & Dieumegard, D. (2009). Carbon nanotube based cathodes for microwave amplifiers. In 2009 IEEE International Vacuum Electronics Conference, IVEC 2009 (pp. 80-81). Article 5193378 (2009 IEEE International Vacuum Electronics Conference, IVEC 2009). https://doi.org/10.1109/IVELEC.2009.5193378

@inproceedings{a904d547cabc4641bb575ab618d95dd8,

title = "Carbon nanotube based cathodes for microwave amplifiers",

abstract = "We have studied two different kinds of electron tubes using a cold field emission cathode as the electron source. This cathode is an array of vertically aligned multiwall carbon nanotubes. The first device is a triode. With this device, we demonstrated the modulation at 32 GHZ of a 1.4 A/cm2 peak current density with a 82\% modulation ratio. The second device is a traveling wave tube. For this device, the objective is to test a cathode delivering a 2 A/cm 2 electron beam.",

keywords = "Carbon nanotubes, Cold cathode, Field emission, Microwave amplifier",

author = "P. Legagneux and Sech, \{N. Le\} and P. Guiset and L. Gangloff and C. Cojocaru and Schnell, \{J. P.\} and D. Pribat and Teo, \{K. B.K.\} and J. Robertson and Milne, \{W. I.\} and F. Andr{\'e} and Y. Rozier and D. Dieumegard",

year = "2009",

month = nov,

day = "20",

doi = "10.1109/IVELEC.2009.5193378",

language = "English",

isbn = "9781424434992",

series = "2009 IEEE International Vacuum Electronics Conference, IVEC 2009",

pages = "80--81",

booktitle = "2009 IEEE International Vacuum Electronics Conference, IVEC 2009",

note = "2009 IEEE International Vacuum Electronics Conference, IVEC 2009 ; Conference date: 28-04-2009 Through 30-04-2009",

}

Legagneux, P, Sech, NL, Guiset, P, Gangloff, L, Cojocaru, C, Schnell, JP, Pribat, D, Teo, KBK, Robertson, J, Milne, WI, André, F, Rozier, Y & Dieumegard, D 2009, Carbon nanotube based cathodes for microwave amplifiers. in 2009 IEEE International Vacuum Electronics Conference, IVEC 2009., 5193378, 2009 IEEE International Vacuum Electronics Conference, IVEC 2009, pp. 80-81, 2009 IEEE International Vacuum Electronics Conference, IVEC 2009, Rome, Italy, 28/04/09. https://doi.org/10.1109/IVELEC.2009.5193378

TY - GEN

T1 - Carbon nanotube based cathodes for microwave amplifiers

AU - Legagneux, P.

AU - Sech, N. Le

AU - Guiset, P.

AU - Gangloff, L.

AU - Cojocaru, C.

AU - Schnell, J. P.

AU - Pribat, D.

AU - Teo, K. B.K.

AU - Robertson, J.

AU - Milne, W. I.

AU - André, F.

AU - Rozier, Y.

AU - Dieumegard, D.

PY - 2009/11/20

Y1 - 2009/11/20

N2 - We have studied two different kinds of electron tubes using a cold field emission cathode as the electron source. This cathode is an array of vertically aligned multiwall carbon nanotubes. The first device is a triode. With this device, we demonstrated the modulation at 32 GHZ of a 1.4 A/cm2 peak current density with a 82% modulation ratio. The second device is a traveling wave tube. For this device, the objective is to test a cathode delivering a 2 A/cm 2 electron beam.

AB - We have studied two different kinds of electron tubes using a cold field emission cathode as the electron source. This cathode is an array of vertically aligned multiwall carbon nanotubes. The first device is a triode. With this device, we demonstrated the modulation at 32 GHZ of a 1.4 A/cm2 peak current density with a 82% modulation ratio. The second device is a traveling wave tube. For this device, the objective is to test a cathode delivering a 2 A/cm 2 electron beam.

KW - Carbon nanotubes

KW - Cold cathode

KW - Field emission

KW - Microwave amplifier

UR - https://www.scopus.com/pages/publications/70449574708

U2 - 10.1109/IVELEC.2009.5193378

DO - 10.1109/IVELEC.2009.5193378

M3 - Conference contribution

AN - SCOPUS:70449574708

SN - 9781424434992

T3 - 2009 IEEE International Vacuum Electronics Conference, IVEC 2009

SP - 80

EP - 81

BT - 2009 IEEE International Vacuum Electronics Conference, IVEC 2009

T2 - 2009 IEEE International Vacuum Electronics Conference, IVEC 2009

Y2 - 28 April 2009 through 30 April 2009

ER -

Carbon nanotube based cathodes for microwave amplifiers

Abstract

Publication series

Conference

Keywords

Access to Document

Other files and links

Fingerprint

Cite this