Plasma Panel Sensor Tel-Aviv September 27 2012 The Tel-Aviv - - PowerPoint PPT Presentation

Plasma Panel Sensor – Tel-Aviv

September 27 2012

The Tel-Aviv University team

• Professor Erez Etzion
• Dr. Yan Ben-Hammou
• Meny Ben-Moshe
• Nir Guttman
• Yiftah Silver

• 15 years of detectors R&D for High

energy physics and the LHC

• Testing the TGCs for the ATLAS

experiment

• Testing and developing the STGC for

the ATLAS upgrade

The lab is currently under construction, moving into a bigger room to better accommodate the test-bench, gas system, electronics etc.

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Experiment setup

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Each RO line is X100 Attenuated and 100Ω terminated 10 μm position precision

• f collimated source

Discriminator 10 RO lines VME V560 counter HV line quenched with 20MΩ connected to a 1MΩ /100MΩ voltage divider

Source position

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Source sits here 1cm thick, Delrin collimator, with a 3 mm slit opening

Tel Aviv University

14 hour measurement

• collimated Source was

left on the same position (above RO channel 7) for ~14 hours.

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Each histogram shows the ratio between each channel and the channel beneath the source (7).

hour r a t i

• 1

2 3 4 5 6 7 8 9 10

Tel Aviv University

Position scan

• Each full turn of the micrometer moves the source by

1mm

• Started the scan when the micrometer read is 60mm
• Made 16 measurements each of 5minutes and 1mm

apart.

• CF4 gas, 600 Torr, 2316V .

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9/7/2011 TAU - status report 9

49mm 50mm 51mm 52mm 53mm 54mm 55mm 56mm 60mm 59mm 58mm 57mm c p m Channel

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Source position measurement

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• points in this graph

are the Gaussian fit results

• Errors are σ/√(n-1)
• Numbers in the x-axis

have no global meaning, simply the read of the micrometer and not the distance from any real point in space…

• The electrode pitch in

this panel (10 electrodes per inch) is the slope of this line: 0.4 electrodes per mm…

Tel Aviv University

signal processing

• Measuring the

pulse as a function of HV line number.

RO 85 24 105 55 Volts Time Panel HV

9/27/2012 Tel Aviv University