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Updated: Feb 10, 2026

Fluorescence detection methods for microfluidic droplet platforms
Published on: December 10, 2011
The gamma ray detection threshold temperature of different superheated droplet detectors
Rupa Sarkar1, Prasanna Kumar Mondal1, Barun Kumar Chatterjee1
1Department of Physics, Bose Institute, 93/1 A. P. C. Road, Kolkata 700009, India.
Abstract:
The response of superheated droplet detectors (SDD) loaded with four different active liquids, R-12 (CCl2F2), R-114 (C2Cl2F4), R-134a (C2H2F4) and R-610 (C4F10) have been studied to obtain the gamma ray detection threshold temperature (Tγ) of the respective detectors. A 137Cs gamma ray source is used for this study. To obtain Tγ from the experimental data a phenomenological model has been used. Result indicates that Tγ maintains a linear relationship with the limit of superheat (Tlim) of different active liquids used in SDD. It indicates that the limit of superheat of a liquid can be used for the prediction of its gamma ray detection threshold temperature.
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