TGEMS
TGEMS : defined as GEM detector which use thick PCboard (0.4 mm thick) size GEM preamplifiers with hole diameters between 0.5 and 1 mm.
PCboard spacing = 1.5 - 2 mm.
TGEM Detector HV setting
[2]Media:Development_of_Tracking_Detectors_with_industrially_produced_GEM_Foils.pdf
- [math]\displaystyle{ V_{GEM} = 0.103 \times V_{Drift} }[/math]
- [math]\displaystyle{ V_{GEM} = 0.103 \times V_{Drift} }[/math]
[math]\displaystyle{ V_{GEM} }[/math] is between ~[300V, 600V] for [math]\displaystyle{ CF_4 }[/math] and for [math]\displaystyle{ Ar/CO_2 }[/math] it is [200V, 370V];
[math]\displaystyle{ V_{Drift} }[/math] voltage is ~[2900V, 5800V] ([1950V, 4000V]) for [math]\displaystyle{ CF_4 }[/math] ([math]\displaystyle{ Ar/CO_2 }[/math]).
Descriminated signals
HV setting
| border="1" |cellpadding="20" cellspacing="0
| Cathode HV (Volts) || First THGEM foil(Volts) || Second THGEM foil(Volts) || Third THGEM foil(Volts) || Third THGEM foil current [math]\displaystyle{ \mu }[/math]A
|-
| 3000 || 1756 || 1657 || 1652 || 1273
|}