“spark chamber”的概念、定义、习题解题方法及翻译-物理辞典

单词	spark chamber
释义	spark chamber A device for detecting charged particles. It consists of a chamber, filled with helium and neon at atmospheric pressure, in which a stack of 20 to 100 plates are placed; the plates are connected alternately to the positive and negative terminals of a source of high potential (10 000 V or more). An incoming particle creates ion pairs in its track, causing the gas to become conducting and sparks to jump between the plates. The light from the sparks is focused to obtain stereoscopic photographs of the particles' tracks. It can also function as a counter (called a spark counter ) when connected to suitable counting circuits. Some versions use crossed sets of parallel wires rather than plates; simple patterns may have a single wire near a plate, in the open atmosphere
随便看	reflecting telescope reflection refracting telescope refraction refractive index refractivity refractometer refractory refrigerant refrigeration Regnault's method regression analysis relative aperture relative atomic mass relative density relative humidity relative molecular mass relative permeability relative permittivity relativistic mass relativistic mechanics relativistic quantum theory relativistic speed relativity relaxation oscillator

物理辞典收录了3346条物理词条，基本涵盖了常用物理知识及物理英语单词词组的翻译及用法，是物理学习的有利工具。