| 单词 | gas amplification |
| 释义 | > as lemmasgas amplification gas amplification n. Physics the process or phenomenon whereby, in a strong electric field, an ion produced in a gas by ionizing radiation is able to produce further ions, often used for producing a detectable current in a radiation counter; (also) the factor by which the total ionization is increased by this process. ΚΠ 1931 Jrnl. Amer. Soc. Naval Engineers 43 271 The electrons, in traveling from the cathode to the anode, collide with the atoms of the inert gas introduced in the tube and liberate from the atoms additional electrons which are also attracted to the anode. In going to the anode these electrons collide with other atoms releasing additional electrons... This phenomenon is called gas amplification. 1978 Radiation Res. 73 7 The maximum usable gas amplification is found to be about 3 × 103, using the propane mixture. 2006 R. A. Powsner & E. R. Powsner Essent. Nucl. Med. Physics (ed. 2) iv. 41 (caption) Proportional counter. The voltage causes gas amplification that gives electrons..enough energy to cause secondary ionization. < as lemmas |
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