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Superheated emulsion in neutron spectrometry
Mala Das1, Sadashi Sawamura, Teruko Sawamura
1Department of Quantum Energy Engineering, Graduate School of Engineering, Hokkaido University, Kita-Ku, Kita-13, Nishi-8, Sapporo, Hokkaido 060-8628, Japan.
Summary
Superheated emulsions function as neutron spectrometers by adjusting temperature and pressure. Researchers established a calibration curve linking emulsion metastability to neutron energy, enabling detector sensitivity and response calculations.
Area of Science:
- Nuclear physics
- Materials science
Background:
- Superheated emulsions are sensitive to ionizing radiation.
- Neutron spectrometry requires precise energy detection.
Purpose of the Study:
- To evaluate superheated emulsion as a neutron spectrometer.
- To calibrate the detector's response to neutron energy.
Main Methods:
- Varying operating temperature and ambient pressure of the emulsion.
- Establishing a relationship between metastability (ss) and threshold neutron energy.
- Calculating detector sensitivity and integral response.
Main Results:
- A calibration curve for neutron energy was successfully established.
- The calculated sensitivity and integral response were compared with experimental data.
Conclusions:
- Superheated emulsions show promise as neutron spectrometers.
- The calibration method provides a basis for accurate neutron energy measurements.