Journal article
Development and characterization of noble solid bolometers
14 Oct 2019
Abstract
Noble liquid detectors have become an attractive option for exploring physics
beyond the standard model. Current experiments are using these detectors to
search for dark matter interactions, neutrinoless double beta decay, and other
phenomena. Improved energy resolution can be leveraged from an optimized
combination of two detection channels: ionization and scintillation.
Experimentally, a microscopic anti-correlation behavior between these signals
has been observed, but it has not been described from first principles. Making
measurements in a third channel would provide useful information about the
microscopic anti-correlation phenomenon. Work is currently underway at Drexel
University to develop solid argon and xenon bolometers, which would be able to
utilize a heat channel in addition to ionization and scintillation. Present
efforts are aimed at developing a method for growing small noble solid samples
via vapor deposition onto a substrate over a wide range of temperatures down to
10 K. Understanding the sample growth is the first step to develop techniques
for integrating detector components to measure ionization and scintillation
signals. This will allow for improved characterization of noble solids as
detector media. In the future, efforts will be focused on the growth of these
detectors in the Drexel dilution refrigerator, where samples can be cooled to
20 mK to include bolometric measurements for the simultaneous readout of the
three detection channels.
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Details
- Title
- Development and characterization of noble solid bolometers
- Creators
- Philip L. R WeigelErin V HansenMichelle J Dolinski
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Physics
- Identifiers
- 991019186645004721