SLIDE 1
1
y = 1.196305E-04e3.300424E-02x y = 2.541469E-04e2.812789E-02x 500 5000 50000 450 500 550 600 650 700 Gain Vmesh
Gain vs Vmesh
Ar:CO2 - 93:7 Ar:CO2 - 80:20
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1 Gain vs Vmesh 50000 y = 1.196305E-04e 3.300424E-02x y = - - PowerPoint PPT Presentation
1 Gain vs Vmesh 50000 y = 1.196305E-04e 3.300424E-02x y = - - PowerPoint PPT Presentation
1 Gain vs Vmesh 50000 y = 1.196305E-04e 3.300424E-02x y = 2.541469E-04e 2.812789E-02x Gain Ar:CO2 - 93:7 5000 Ar:CO2 - 80:20 500 450 500 550 600 650 700 Vmesh 2 Ar:CO2 80:20 3 Ar:CO2 - 80:20 (Mesh) for high n-rate Gain 2711
SLIDE 2
SLIDE 3
Ar:CO2 – 80:20
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SLIDE 4
En=5.5 MeV, neutron flux=1.4x106 n/cm2s
y = 1E-18e0.0703x 2711 0.001 0.01 0.1 1 10 100 570 580 590 600 610 620 630 640 Gain Sparks/sec Vmesh
Ar:CO2 - 80:20 (Mesh) for high n-rate
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SLIDE 5
Sparks Ar:CO2 – 80:20
En=5.5 MeV, neutron flux=1.4x106 n/cm2s En=5.5 MeV, neutron flux=0.7x105 n/cm2s
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SLIDE 6
y = 3E-13x3.1192 2711.54 0.01 0.1 1 10 100 0.01 0.1 1 10 100 570 580 590 600 610 620 630 640 Gain Sparks/sec Vmesh
Ar:CO2 - 80:20 (Strips)
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SLIDE 7
0.1 1 10 100 2000 20000 Sparks/sec Gain
Spark Rate vs Gain (Ar:CO2 - 80:20) high n-rate (cut=100)
Mesh Strips
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SLIDE 8
0.001 0.01 0.1 1 10 100 2000 20000 Sparks/sec Gain
Spark Rate vs Gain (Ar:CO2 - 80:20) low n-rate (cut=100)
Mesh Strips
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SLIDE 9
Ar:CO2 – 93:7
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SLIDE 10
En=5.5 MeV, neutron flux=1.5x106 n/cm2s
y = 2E-28e0.1176x 1465 14650 0.001 0.01 0.1 1 10 100 0.001 0.01 0.1 1 10 100 500 510 520 530 540 550 560 570 Gain Sparks/sec Vmesh
Ar:CO2 - 93:7 (Mesh) for high n-rate
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SLIDE 11
Sparks Ar:CO2 – 93:7
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SLIDE 12
y = 5E-13x3.3477 1465.2 14652 0.01 0.1 1 10 100 0.01 0.1 1 10 100 500 510 520 530 540 550 560 570 Gain Sparks/sec Vmesh
Ar:CO2 - 93:7 (Strips)
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SLIDE 13
y = 2E-14x3.5644 y = 2E-13x3.3662 0.001 0.01 0.1 1 10 100 1000 10000 Sparks/sec Gain
Spark Rate vs Gain (Ar:CO2 - 93:7) high n-rate (cut=100)
mesh strips
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SLIDE 14
0.001 0.01 0.1 1 10 490 500 510 520 530 540 550 560 570 580
Current vs Voltage
Current
μA
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SLIDE 15
Ar:CO2 – 80:20 Ar:CO2 – 93:7 combined for high and low n-rate
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SLIDE 16
0.001 0.01 0.1 1 10 100 1000 10000 Sparks/sec Gain
Spark Rate vs Gain high n-rate (combined from mesh)
Ar:CO - 93:7 Ar:CO2 - 80:20
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SLIDE 17
2000 20000 0.1 1 10 100 0.001 0.01 0.1 1 10 100 1000 10000 Gain (80:20) Sparks/sec (80:20) Sparks/sec (93:7) Gain (93:7)
Spark Rate vs Gain high n-rate (combined from mesh)
Ar:CO2 - 93:7 Ar:CO2 - 80:20
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SLIDE 18
2000 20000 0.001 0.01 0.1 1 10 0.001 0.01 0.1 1 10 3000 30000 Gain (80:20) Sparks/sec (80:20) Sparks/sec (93:7) Gain (93:7)
Sparks Rate vs Gain low n-rate (combined from mesh)
Ar:CO2 - 93:7 Ar:CO2 - 80:20
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SLIDE 19
Energy Resolution Plot (με πηγή Fe55)
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SLIDE 20
Plots από MCA με πηγή Σιδήρου και doubleFit με Gauss (10/5/2010)
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SLIDE 21
Resolution = FWHM/mean value = 2,35 sigma / mean value
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