Sarkar Rupa, Mondal Prasanna Kumar, Datta Manas, Chatterjee Barun Kumar
Department of Physics, Bose Institute, 93/1 A. P. C. Road, Kolkata 700009, India.
Rev Sci Instrum. 2017 Jun;88(6):066106. doi: 10.1063/1.4989697.
A superheated droplet detector (SDD) consists of a large number of micron-sized superheated liquid drops suspended in a gel medium. The vaporization of a superheated drop is associated with the emission of an acoustic signal. A novel optical method is developed for the detection of this acoustic signal. In this method, a probe-bubble picks up the acoustic signal, and the oscillation of the probe-bubble is detected by employing a laser and phototransistor. The method can detect vaporization of an individual superheated drop in real-time and can be used for studying the response of SDDs to ionizing radiations.
过热液滴探测器（SDD）由大量悬浮在凝胶介质中的微米级过热液滴组成。过热液滴的汽化与声信号的发射有关。开发了一种用于检测这种声信号的新型光学方法。在该方法中，探测气泡拾取声信号，并通过使用激光和光电晶体管检测探测气泡的振荡。该方法可以实时检测单个过热液滴的汽化，可用于研究过热液滴探测器对电离辐射的响应。
