热释电晶体在稀气体中加热或冷却时产生的自聚焦电子束
Self-Focused Electron Beams Produced by Pyroelecric Crystals on Heating or Cooling in Dilute Gases
摘要：
自聚焦，空间稳定，电子束所产生的加热到160摄氏度和冷却到室温的热释电铌酸锂晶体在稀气体中已被首次观察到。这些电子束的电流（高达纳安培）和能量（高达170千电子伏）达到最大值，然后在热循环的冷却阶段下降。圆柱形晶体产生空间稳定的光束，典型的焦距为22 mm，光斑尺寸为1 mm。在这里，我们提出的照片以及电子证据，他们的存在。
英文摘要：
Self-focusing, spatially stable, electron beams arising from heating up to 160 degrees C and cooling to room temperature pyroelectric LiNbO3 crystals in dilute gases have been observed for the first time. The current (up to nanoamperes) and energies (up to 170 keV) of these electron beams attained maximum values and then decreased during the cooling phase of the thermal cycle. Cylindrical crystals produced spatially stable beams with typical focal lengths of 22 mm and 1mm spot sizes. Here we present photographic as well as electronic proof of their existence.
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