Abstract
The effect of electron trapping in the presence of a depressed collector has been included in gyrotron efficiency computations. A condition for trapping is derived in terms of the retarding voltage. Electron reflection is treated both as an ideal adiabatic process and a non-adiabatic one to find limits for realistic cases. The overall electron efficiency as a function of the retarding voltage has been calculated for two specific gyrotrons with allowance for the electron velocity spread. The collector voltages corresponding to the onset of trapping are specified and the resulting efficiency decrease is found.
| Original language | English |
|---|---|
| Pages (from-to) | 183-188 |
| Number of pages | 6 |
| Journal | ITG-Fachbericht |
| Issue number | 165 |
| Publication status | Published - 1 Jan 2001 |
| MoE publication type | A4 Article in a conference publication |
| Event | 9th Trienal Conference of ITG-Chapter 8.6 -Vacuum Electronics and Displays - Garmisch-Partenkirchen, Germany Duration: 2 May 2001 → 3 May 2001 |
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Effect of trapped electrons on gyrotron efficiency. / Airila, M. I.; Dumbrajs, O.
In: ITG-Fachbericht, No. 165, 01.01.2001, p. 183-188.Research output: Contribution to journal › Article in a proceedings journal › Scientific › peer-review
TY - JOUR
T1 - Effect of trapped electrons on gyrotron efficiency
AU - Airila, M. I.
AU - Dumbrajs, O.
PY - 2001/1/1
Y1 - 2001/1/1
N2 - The effect of electron trapping in the presence of a depressed collector has been included in gyrotron efficiency computations. A condition for trapping is derived in terms of the retarding voltage. Electron reflection is treated both as an ideal adiabatic process and a non-adiabatic one to find limits for realistic cases. The overall electron efficiency as a function of the retarding voltage has been calculated for two specific gyrotrons with allowance for the electron velocity spread. The collector voltages corresponding to the onset of trapping are specified and the resulting efficiency decrease is found.
AB - The effect of electron trapping in the presence of a depressed collector has been included in gyrotron efficiency computations. A condition for trapping is derived in terms of the retarding voltage. Electron reflection is treated both as an ideal adiabatic process and a non-adiabatic one to find limits for realistic cases. The overall electron efficiency as a function of the retarding voltage has been calculated for two specific gyrotrons with allowance for the electron velocity spread. The collector voltages corresponding to the onset of trapping are specified and the resulting efficiency decrease is found.
UR - http://www.scopus.com/inward/record.url?scp=0035021968&partnerID=8YFLogxK
M3 - Article in a proceedings journal
AN - SCOPUS:0035021968
SP - 183
EP - 188
JO - ITG-Fachbericht
JF - ITG-Fachbericht
SN - 0932-6022
IS - 165
ER -