Superheated Emulsion Detector (SED), a comparatively new radiation detector, takes an important place in radiation physics. In SED, micron size superheated drops are dispersed inside the gel like medium known as Superheated Drop Detector (SDD) or in a soft polymer matrix known as Bubble Detector3 (BD). Superheated state is a metastable state of the liquid. It comprises a dynamic population of microbubbles scattered through out the liquid.
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