Detection of single photons with ThickGEM-based counters

M Alexeev;F Barbosa;R Birsa;F Bradamante;A Bressan;M Chiosso;P Ciliberti;S Dalla Torre;O Denisov;V Duic;M Finger;M Finger;H Fischer;M Giorgi;B Gobbo;M Gregori;F Herrmann;K Königsmann;D Kramer;S Levorato;A Maggiora;A Martin;G Menon;A Mutter;F Nerling;K Novakova;J Novy;D Panzieri;J Polak;E Rocco;C Santos;G Sbrizzai;P Schiavon;C Schill;S Schopferer;M Slunecka;F Sozzi;L Steiger;M Sulc;S Takekawa;F Tessarotto;J F C A Veloso;H Wollny