Difference between revisions of "TGEMS"

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== HV setting==
 
== HV setting==
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{| border="1"  |cellpadding="20" cellspacing="0  
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| Cathode HV (Volts) || First THGEM foil(Volts) || Second THGEM foil(Volts) || Third THGEM foil(Volts) || Third THGEM foil current <math>\mu</math>A
 
| Cathode HV (Volts) || First THGEM foil(Volts) || Second THGEM foil(Volts) || Third THGEM foil(Volts) || Third THGEM foil current <math>\mu</math>A
 
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|-

Revision as of 22:38, 10 October 2008

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.

[1], Media:01352098.pdf

TGEM Detector HV setting

[2]Media:Development_of_Tracking_Detectors_with_industrially_produced_GEM_Foils.pdf

[math]V_{GEM} = 0.103 \times V_{Drift}[/math]

[math]V_{GEM}[/math] is between ~[300V, 600V] for [math]CF_4[/math] and for [math]Ar/CO_2[/math] it is [200V, 370V];

[math]V_{Drift}[/math] voltage is ~[2900V, 5800V] ([1950V, 4000V]) for [math]CF_4[/math] ([math]Ar/CO_2[/math]).

TGEM detector.jpgTGEM detector 1.jpg

TGEM Detector TGEMfoil 1.jpgTGEM Detector TGEMfoil 2.jpgTGEM Detector TGEMfoil 3.jpg
TGEM Detector cathode.jpgTGEM Detector.jpg

Descriminated signals

HV setting

Cathode HV (Volts) First THGEM foil(Volts) Second THGEM foil(Volts) Third THGEM foil(Volts) Third THGEM foil current [math]\mu[/math]A
3000 1756 1657 1652 1273


Descriminator setup

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