| 释义 |
self-ˈquenching, ppl. a. (vbl. n.)
[self- 1 f, b.]
Having within itself a cause of quenching. Also as vbl. n., quenching that occurs spontaneously. Also self-ˈquenched ppl. a., self-quenching.
1936Rev. Sci. Instruments VII. 31/1 When the discharge is self-quenched, the total charge passed through the counter is directly proportional to the primary ionization. 1940Physical Rev. LVII. 1035/2 All counters are self-quenching if they overshoot, and if they do not, the inherent instability of the discharge will cause the discharge to be extinguished. 1946Ibid. LXIX. 689/2 A study was made of the characteristics of self-quenched G-M counters filled with mixtures of argon and 28 different organic vapors. 1959F. W. Wilson Tool Engineer's Handbk. (ed. 2) xv. 27 With extremely rapid heating rates and shallow heating, the mass of the part may conduct heat away fast enough to quench the part suitably. This is termed ‘self-quenching’. 1963B. Fozard Instrumentation Nuclear Reactors v. 51 If bromine..is added to the neon-argon mixture, satisfactory operation as a self-quenching counter is achieved. 1970D. L. Horrocks in E. D. Bransome Liquid Scintillation Counting 36/2 Self-quenching seems to occur in molecules that have unprotected, coplanar chromophores so that there can be a complete mirror image overlap of the chromophores of the excited and unexcited solute molecules. 1971Gloss. Electrotechnical, Power Terms (B.S.I.) iii. i. 32 Self-quenching oscillator, a generator of short trains of oscillations, the trains being separated by intervals of quiescence caused by the accumulation of electric charge in a capacitor in the circuit. |