The design and commissioning of a new detector array within the ELI-GANT set-up, with the aim of measuring weak second and third order γ-ray emitting quantum-electrodynamical processes, is reported. This ELIGANT-GG set-up is discussed in terms of technical specifications, time resolution, and efficiency of the set-up itself. The long-term stability and linearity of the detectors are investigated as important factors for the feasability of long-running experiments. Furthermore, the capabilility of the set-up for measuring angular distributions is shown. Finally, it is demonstrated that indeed very rare γ-coincidence signals with a relative branching as low as 10−6 can be measured.
Source commissioning of the eligant-gg setup for γ-ray coincidence measurements at eli-np
Lattuada D.;
2019-01-01
Abstract
The design and commissioning of a new detector array within the ELI-GANT set-up, with the aim of measuring weak second and third order γ-ray emitting quantum-electrodynamical processes, is reported. This ELIGANT-GG set-up is discussed in terms of technical specifications, time resolution, and efficiency of the set-up itself. The long-term stability and linearity of the detectors are investigated as important factors for the feasability of long-running experiments. Furthermore, the capabilility of the set-up for measuring angular distributions is shown. Finally, it is demonstrated that indeed very rare γ-coincidence signals with a relative branching as low as 10−6 can be measured.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
