On the Theory of the Bubble Chamber
On the Theory of the Bubble Chamber
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浅谈气泡室的理论
DOI：
10.1063/1.1724333
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发表时间：
1958
影响因子：
4.6
通讯作者：
F. Seitz
中科院分区：
文献类型：
--
作者：
F. Seitz
本文试图对决定气泡室运行的因素进行分析。结果表明，在常规腔室中，大多数气泡是由库仑碰撞中入射粒子产生的中等能量的自由电子成核的。由于库仑碰撞导致的原子核位移太少，无法解释观测到的气泡密度。电子将其动能沉积在高度局部的区域，这些区域随后成为爆炸的来源，在10−10或10−11秒的时间内产生大于临界尺寸的气泡。随后，由于流体的蒸发，气泡长大。流体的温度应足够接近临界温度，以使产生临界尺寸气泡所需的能量可以由一个电子提供，其范围相当于或小于临界尺寸气泡的直径。否则，电子将不能把它的能量集中在一个足够小的体积内。
An attempt is made to analyze the factors which determine the operation of the bubble chamber. It is concluded that the majority of bubbles in conventional chambers are nucleated by moderately energetic free electrons produced by the incident particles in Coulomb encounters. Nuclei are displaced too infrequently by Coulomb encounters to account for the observed densities of bubbles. The electrons deposit their kinetic energy in highly localized regions which then are the source of explosions which produce bubbles of greater than critical size in a time of the order of 10−10 or 10−11 sec. The bubbles grow subsequently by evaporation of the fluid. The temperature of the fluid should be sufficiently close to the critical temperature that the energy required to produce the bubble of critical size can be provided by an electron with a range comparable to or less than the diameter of the bubble of critical size. Otherwise the electron will be unable to localize its energy in a sufficiently small volume in any b...