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Related Experiment Video

Updated: Jun 27, 2026

Glass-Based Devices to Generate Drops and Emulsions

Glass-Based Devices to Generate Drops and Emulsions

Published on: April 5, 2022

An active drop counting device using condenser microphone for superheated emulsion detector.

Mala Das¹, A S Arya, C Marick

¹Nuclear and Atomic Physics Division, Saha Institute of Nuclear Physics, Kolkata, India. mala.das@saha.ac.in

The Review of Scientific Instruments

|December 3, 2008

Summary

This summary is machine-generated.

This study presents an active superheated emulsion detector that uses a capacitive diaphragm sensor to detect acoustic pulses from bubble nucleation. The device accurately measured neutron energy spectra from a Californium-252 source.

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Additive Manufacturing-Enabled Low-Cost Particle Detector

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Published on: March 24, 2023

Area of Science:

Nuclear Physics
Particle Detection Technology

Background:

Superheated emulsion detectors are sensitive to acoustic signals generated by particle interactions.
Accurate detection and analysis of neutron energy spectra are crucial for nuclear physics research.

Purpose of the Study:

To develop and characterize an active device for superheated emulsion detection.
To measure the neutron energy spectrum of a Californium-252 fission neutron source.
To evaluate the performance of the detector system.

Main Methods:

Utilized a capacitive diaphragm sensor (condenser microphone) to convert acoustic pulses to electrical signals.
Incorporated an active peak detector to prevent multiple triggering.
Employed a microprocessor-based data acquisition system for recording counts.
Studied genuine triggers missed by the sensor using simulated clock pulses.
Measured neutron energy spectrum using R114 as the sensitive liquid.

Main Results:

The device successfully detected acoustic pulses corresponding to drop nucleation.
The neutron energy spectrum of (252)Cf was measured and compared with calculated values.
Frequency analysis of detected signals was performed.

Conclusions:

The developed active device is effective for superheated emulsion detection.
The detector system provides reliable measurements of neutron energy spectra.
Further analysis of signal characteristics can enhance detector performance.