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trigger gate

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TMT

10 µs

160 mV

laser gate

pulse gate

pulse

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5

10

15

20

25

30

35

40

45

charge (fC)

coun

tAr:CO

2:O

2 84.81:15:0.19

pedestal+amplifier offset

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0 0.5 1 1.50

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0.4

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0.8

1

x (cm)

S/S

0

Ar:N2:CO

2:O

2 84.4:5:10:0.6

E = 0.2 kV/cm a = 1.3 cm−1

data fit: S = So e−ax

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0 0.5 1 1.5150

200

250

x (cm)

Q (

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Ar:CH4 90:10, E=0.2 kV/cm, a=0.10

Ar:C2H

6 50:50, E=0.2 kV/cm, a=0.05

Ar:C2H

6 50:50, E=0.5 kV/cm, a=0.14

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0 1000 2000 3000 4000 5000 6000 70000

1

2

3

4

5Ar:N

2:CO

2 balance:5:10% + O

2

E = 0.100 kV/cm

O2 (PPM)

a (1

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Magboltz simulationthis measurement

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0 5 10 15 20 250

0.2

0.4

0.6

0.8

1

1.2

1.4

1.6

N2 (%)

a (1

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)

Ar:N2:CO

2:O

2 balance:x:5:0.19%

E = 0.100 kV/cm

this measurement Magboltz simulation

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0 5 10 15 20 250

0.5

1

1.5

2

2.5

CO2 (%)

a (1

/cm

)

Ar:N2:CO

2:O

2 balance:5:x:0.19%

E = 0.100 kV/cm

this measurement Magboltz simulation

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0 0.05 0.1 0.15 0.20

0.5

1

1.5

2

E (kV/cm)

v (c

m/µ

s)

Ar:N2:CO

2:O

2 74.71:20.11:4.99:0.19%

this measurement Magboltz simulation

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0

2

4

6E=0.050 kV/cm

vdrift

=0.22 cm/µs

linear χ2/dof = 2.7

quadratic χ2/dof = 20.7

0

1

2

E=0.100 kV/cm

vdrift

=0.35 cm/µs

linear χ2/dof = 2.2

quadratic χ2/dof = 11.1

0 1000 2000 3000 4000 5000 6000 70000

0.5

1

E=0.200 kV/cm

vdrift

=0.58 cm/µs

linear χ2/dof = 0.8

quadratic χ2/dof = 5.2

0

2

4

6E=0.025 kV/cm

vdrift

=0.15 cm/µs

linear χ2/dof = 3.3

quadratic χ2/dof = 18.2

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a (1

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β (1

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0 5 10 15 20 250

0.1

0.2

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β (1

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2 balance:x:0.15%

E = 0.025 kV/cmE = 0.050 kV/cmE = 0.100 kV/cmE = 0.200 kV/cm

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0 5 10 15 20 250

0.1

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CO2 (%)

β (1

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Ar:N2:CO

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E = 0.025 kV/cmE = 0.050 kV/cmE = 0.100 kV/cmE = 0.200 kV/cm

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