An α-ray imaging chamber has been developed based on a gaseous micro-time-projection chamber with a low-α emission μ-PIC in a low radioactivity structure. The detector offers the advantage of position sensitivity, which allows to image the α-ray contamination for the sample. It measures the α-ray rate in the sample region and a background region at the same time, thus that the net α rate from the sample can be evaluated efficiently by subtracting these rates from each other. In this work, the measurement results for several samples using the detector is provided.
|Journal||Journal of Physics: Conference Series|
|Publication status||Published - 2020 Mar 20|
|Event||16th International Conference on Topics in Astroparticle and Underground Physics, TAUP 2019 - Toyama, Japan|
Duration: 2019 Sept 9 → 2019 Sept 13
ASJC Scopus subject areas
- Physics and Astronomy(all)