Y. Rozier

Publications (2)0 Total impact

• Conference Proceeding: 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. Andre, Y. Rozier, D. Dieumegard
  [show abstract] [hide abstract]
  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/cm² electron beam.
  Vacuum Electronics Conference, 2009. IVEC '09. IEEE International; 05/2009
• Article: Carbon nanotube based cathodes for microwave amplifiers

  P. Legagneux, N. Le Sech, P. Guiset, L. Gangloff, C. Cojocaru, JP Schnell, D. Pribat, KBK Teo, J. Robertson, WI Milne, F. Andre, Y. Rozier, D. Dieumegard
  2009 Ieee International Vacuum Electronics Conference. 01/2009;