Academic Journal
Measurement of back-bombardment temperature rise in microwave thermionic electron guns
| العنوان: | Measurement of back-bombardment temperature rise in microwave thermionic electron guns |
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| المؤلفون: | Kowalczyk, Jeremy M. D., Hadmack, Michael R., Madey, John M. J. |
| المصدر: | Review of Scientific Instruments ; volume 84, issue 8 ; ISSN 0034-6748 1089-7623 |
| بيانات النشر: | AIP Publishing |
| سنة النشر: | 2013 |
| الوصف: | We describe a simple method to measure the back-bombardment heating temperature rise as a function of time in pulsed microwave thermionic guns using a fast rise-time InGaAs detector and optical pyrometer. Gaining knowledge of the nature of that temperature rise and the corresponding current out of the gun are the first steps in devising a scheme to counteract the back-bombardment heating which lengthens the micropulses, limits the macropulse length, and increases the energy spread of the emitted electron beam. We measured a temperature rise of 59 K in our LaB6 cathode which delivered a peak of 600 mA over a 5 μs RF pulse in our 0.33 MV/cm peak field, 2.856 GHz thermionic electron gun. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| DOI: | 10.1063/1.4817539 |
| DOI: | 10.1063/1.4817539/14783193/084905_1_online.pdf |
| الاتاحة: | http://dx.doi.org/10.1063/1.4817539 https://pubs.aip.org/aip/rsi/article-pdf/doi/10.1063/1.4817539/14783193/084905_1_online.pdf |
| رقم الانضمام: | edsbas.D7337387 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1063/1.4817539 |
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