| 释义 |
negatron|ˈnɛgətrɒn|
[f. negative a. + -tron.]
1. Electronics. A kind of valve that exhibits negative resistance, having two anodes (one either side of the cathode) and a control electrode between the cathode and one of the anodes.
1919J. Scott-Taggart Brit. Pat. 166,260 17 Sept., The present invention relates to an electron discharge device, hereinafter to be termed a negatron, which is capable of being used as a negative resistance. 1964J. Groszkowski Frequency of Self-Oscillations iii. 70 The negatron belongs to the voltage-controlled negative resistors.
2. Physics. The ordinary, i.e. negatively charged, electron (as distinct from the positron). Cf. negaton.
1934C. D. Anderson et al. in Physical Rev. XLV. 353/1 To remove the ambiguity in the definition of the term ‘electron’..the terms ‘negatron’ and ‘positron’ are here used. 1955R. D. Evans Atomic Nucleus xviii. 576 Consider the collision of an incident negatron..with an atomic electron. 1961G. R. Choppin Exper. Nucl. Chem. vii. 100 When the gamma energy is greater than 1·02 MeV, a certain probability exists for the creation of a negatron..and a positron. 1971Stern & Lewis X-Rays iii. 47 Triplet production can occur when the photon interacts with an electron and not with a nucleus. Three particles result, the original electron as well as the positron and negatron pair. |