Abstract
We developed a simple small-scale experiment to measure the beta decay spectrum of ^{3}H. The aim of this research is to investigate the presence of sterile neutrinos in the keV region. Tritium nuclei were embedded in a 1times1times1 cm^3 LiF crystal from the ^6Li(n,alpha)^3H reaction. The energy of the beta electrons absorbed in the LiF crystal was measured with a magnetic microcalorimeter at 40 mK. We report a new method of sample preparation, experiments, and analysis of ^3H beta measurements. The spectrum of a 10-hour measurement agrees well with the expected spectrum of ^3H beta decay. The analysis results indicate that this method can be used to search for keV-scale sterile neutrinos.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
