Speaker
Description
The SWGO collaboration is proposing a wide field of view observatory to explore the Southern hemisphere gamma ray sky in the 100 GeV-1 PeV energy range. The selected site is the Atacama Astronomical Park in Chile. SWGO will be the first wide field of view experiment in the observing the southern sky, complementing the observations of HAWC and LHAASO that operate the Northern hemisphere.
The detector will be based on water Cherenkov tanks, with an inner central array with high fill factor and a large (about 1 km^2 square) outer region with a much lower fill factor. The details of the array layout, tanks and photosensors are being defined
One of the proposed photosensors for SWGO is the so called multi-PMT, an enclosed vessel embedding multiple small PMTs. This detector has been used already in other experiments like Km3Net and HyperKamiokande. Many advantages can be associated with this idea, in particular an increased dynamic range, a better timing resolution and an intrinsic directional sensititivy. All those factors can lead to a better shower reconstruction and discrimination of gamma initiated showers against the hadron background.
