Yalandin, M I and Shpak, V G and Shunailov, S A and Oulmaskoulov, M R and Ginzburg, N S and Zotova, I V and Novozhilova, Y V and Sergeev, A S and Phelps, A D R and Cross, A W and Wiggins, Mark and Ronald, K (2000) Generation of powerful subnanosecond microwave pulses in the range of 38-150 GHz. IEEE Transactions on Plasma Science, 28 (5). pp. 1615-1619. ISSN 0093-3813Full text not available in this repository. (Request a copy from the Strathclyde author)
Experimental measurements of coherent stimulated radiation from intense, subnanosecond electron bunches moving through a periodic waveguide and interacting with a backward propagating TM01 male are presented. The ultra-short microwave pulses in Ka, W, and G band were generated with repetition frequencies of up to 25 Hz, Observation of RF breakdown of ambient air, as well as direct measurements by hot-carrier germanium detectors, gives an estimate of the peak power up to 140 MW for the 300-400 ps pulses at 38 GHz. The initial observation of 75 GHz 10-15 MW radiation pulses with duration less than 150 ps, and of 150 GHz microwave spikes with a risetime of 75 ps are also reported.
|Keywords:||backward-wave oscillator, microwave pulse, subnanosecond pulse, superradiance, electron bunches, Plasma physics. Ionized gases, Condensed Matter Physics, Nuclear and High Energy Physics|
|Subjects:||Science > Physics > Plasma physics. Ionized gases|
|Department:||Faculty of Science > Physics|
|Depositing user:||Pure Administrator|
|Date Deposited:||03 Nov 2011 13:51|
|Last modified:||04 May 2016 09:07|