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本文在考虑到磁场和热压力的情况下,研究了对头碰相对论电子束在传输的过程中可能导致的几种电磁不稳定性和静电不稳定性,并给出了这些不稳定性出现的条件和增长率,利用不稳定性的激发条件,根据问题的要求可通过控制电子束的相对运动速度来激发或抑制这些不稳定性。In this paper, we studied the instabilities excited by head-on collision of two rela-tivistic electron beams in transporting, taking account of the magnetic field B0 and the thermal pressure ▽p of the beams. The conditions under which the instabilities occur and the growth rate of instabilities are obtained. The results show that these instabilities can be excited or inhibited by controlling the velocity of the beams.
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