English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

We discuss over the energy resolution we measured for several Helium-3proportional tubes. The energy resolution of a Helium-3 detector is strictlyrelated to the discrimination between gamma-rays and neutrons that can beachieved. We also discuss the different contributions to the energy resolution;these provide information about how the helium-3 counters operate. We measuredthe spatial resolution of position sensitive Helium-3 detectors in order toquantify and understand the limit that can be achieved with this technology.The gamma-ray sensitivity is the efficiency for miscounting a gamma-ray pulseas a neutron pulse. This quantity is crucial to determine the performance ofthe detectors.None of the gamma-ray sensitivity measurements described in theliterature involves Helium-3 detectors. We measured the gamma-ray sensitivityfor several Helium-3 detectors, providing a useful term of comparison for thealternative technologies. We investigated the different contributions that giverise to the gamma-ray sensitivity in a detector. In order to better understandthese contributions we performed several Monte Carlo simulations. In order toimprove the gamma-ray sensitivity, we tested the feasibility of gamma-ray pulserejection via Pulse Shape Discrimination (PSD). While proving its feasibility,we quantify the magnitude of the gamma-ray rejection in Helium-3 tubes. Theimplementation of the PSD technique on Helium-3 detectors was also investigatedin order to set a possible starting point for the PSD implementation onBoron-10 detectors.

Characterisation of the Spatial Resolution and the Gamma-ray Discrimination of Helium-3 Proportional Counters