科研之友
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摘要
A planar x-ray source using gated carbon nanotube (CNT) emitters was developed. In the diode structure measurement, the turn-on electric field of the CNT cathode was approximately 1.2V/mu m. In the triode structure measurement, characteristic x-ray peaks of Cu and bremsstrahlung x-rays were observed. The maximum energies of the bremsstrahlung x-rays were in agreement with anode voltages. Pulse x-rays synchronized with pulsed gate voltages. Clear x-ray transmission images with high spatial resolution <= 165 mu m were obtained.
- 出版日期2013-3
