Solar Neutron Telescope at Gornergrat (SONTEL)

Pictures by Rolf Bütikofer

Hotel
Matterhorn
Matterhorn
Hotel Gornergrat Kulm with two astronomical observatories
Matterhorn (4478 m asl) with Hotel Gornergrat Kulm
Housing of Solar Neutron Telescope, Hotel Gornergrat Kulm and Matterhorn
SONTEL
SONTEL
Scintillators
Housing of Solar Neutron Telescope at Gornergrat, 3135 m asl
Housing of Solar Neutron Telescope
Scintillator: Horizontal matrix of four 1m x 1m x 0.40m plastic scintillator (during construction)
Scintillators
SONTEL inside
Roof after Lothar
Four scintillator boxes, veto proportional counter tubes at the back and above scintillator counters (during construction)
Veto proportional counter tubes, PCs for data acquisition and rack with electronics
Housing of Solar Neutron Telescope after storm "Lothar" on 26.12.1999