The Edinburgh Ge6 Array; an array of stacked HpGe detectors for observing medium energy pions and protons in tagged photon experiments

The Edinburgh Ge6 Array is an array of 5 stacked HpGe detectors that were designed to detect intermediate energy pions and protons with energy resolutions comparable to magnetic spectrometers but with considerably larger solid angles and energy range acceptances. The array was designed primarily to be used in conjunction with tagged photon spectrometers to study photonuclear reactions. In this article we present results from a test measurement carried out using a secondary beam of π+π+-particles at the Paul Scherrer Institute, Villigen, Switzerland and describe a pilot study of the 6Li(γ,π+)6He6Li(γ,π+)6He reaction carried out using tagged photons at the Institut für Kernphysik, Mainz, Germany.