Readout principle

Time

Drift direction

Edrift

• Continuously sensitive

• Self-triggering

Equiv. input charge due to noise:

Equiv. input charge due to noise:Qnoise= 350+2.5×Cinput[pF]( ) electrons

Cooling systemCooling panels

Commercial Insulation

LN2 pumps

Two LN2 circulation pumps, max speed 24 m3/hr, max head 5 bar

Drawing pannel

Internal detector view

Wire ChamberSide A

Wire ChamberSide B

Drift distance2 x 1.5 m

Cathode

Run 975, Event 118 Collection Right

92 cm

53 cm

Muon decay

Run 969, Event 18 Collection Right

73 cm

42 cm

43 cm

V0 candidate

50 cm

Run 975, Event 15 Collection Left

395 cm

174 cm

Multiple Shower

14 m

153 cm

Run 975, Event 143 Collection Left

Multiple muons + multiple showers

Run 975, Event 146 Collection Right

920 cm

185 cm

16,4 m

Run 975, Event 133 Collection Right

174 cm

Run 975, Event 157 Collection Right

706 cm

170 cm

Big Shower

Run 961, Event 16 Collection Right

176 cm

434 cm

158 MeV

752 MeV

= 141o

Minv = 650 MeV

Run 975, Event 151

Minv =140 MeV

Collection view

Pi zero candidate (preliminary)

= 25o

140 MeV

•Reconstruction of -showers

(error evalulation in progress)

Detector’s performance (cont.)K+[AB]→ μ+[BC]→ e+[CD]

Collection view

Run 939 Event 95

Induction 2 view

A

B

C

DK+

µ+

e+A

A

B

B

C

C

μ+[AB]→ e+[BC]

AB

BC

K+

µ+

Run 939 Event 46

Particle identification by characteristic decay (µ+,µ-,K+,K-, Ko)Particle identification by characteristic decay (µ+,µ-,K+,K-, Ko)

µ+

e+

µ+

e+

Induction 2 view

Collection view

Box dimensions: 42 x 14 x14 cm

Eereconstructed= 45 MeV

Run 939Event 95

Electron from decay measurement

GOK (God Only Knows…)

……and may be some theorist

≈15

cm

≈25 cm

Shock Absorbers

Aux. Units

T600

T600 Installation in LNGS

Aux. Units

T600

T600 Installation in LNGS

The T3000 Detector