# Study of gamma ray response of R404A superheated droplet detector using a two-state model

Source: [Study of gamma ray response of R404A superheated droplet detector using a two-state model](<https://www.sota2.com/research/paper/68fa2ca01e209131ce851e70>)

Collection index: [llms.txt](<https://www.sota2.com/research/llms.txt>)

Data updated: 2025-10-24T15:28:06.681Z

Authors: P.K. Mondal, B.K. Chatterjee

Published: 2013-09-08T16:10:39.000Z

## Abstract

The superheated droplet detector (SDD) is known to be gamma insensitive below a threshold temperature which made them excellent candidates for neutron detection in the presence of gamma rays. Above the threshold temperature, the gamma ray detection efficiency increases with increase in temperature. In this work the gamma ray threshold temperature has been studied for SDD using R404A as the active liquid and is compared to the theoretical prediction. The temperature variation of gamma ray detection efficiency and interstate transition kinetics has also been studied using a two-state model. The experiments are performed at the ambient pressure of 1 atmosphere and in the temperature range of 17-32oC using a 662 keV 137Cs gamma ray source.

## Recorded benchmark results

A research result applies to its stated dataset, split, metric and evaluation configuration. Compare like-for-like settings, preserve the metric's unit and direction, and distinguish paper-reported results from independent reproduction. The best result recorded here is not a claim of exhaustive, current global coverage.

## Original sources and implementation

[Original paper](<https://arxiv.org/abs/1309.1971>)

[PDF](<https://arxiv.org/pdf/1309.1971.pdf>)