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Test Pulse Analysis Carl Goodrich 7/31/07
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Test Pulse The Test Pulse was injected into channels 4 and 23 –We expect channels 3, 4, 5, and 22, 23, 24 to be more noisy than in Random Trigger runs –We exclude these channels from Test Pulse noise analysis
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Random Trigger HP1 Total Noise- Electronic IDCommon Mode Noise- Electronic ID Common Mode Subtracted Noise- Software ID average per strip, for all modules average per link, for all modules average per channel, for all modules
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Test Pulse HP1 Total Noise- Electronic IDCommon Mode Noise- Electronic ID Common Mode Subtracted Noise- Software ID average per strip, for all modules average per link, for all modules average per channel, for all modules
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Test Pulse HP2 Total Noise- Electronic IDCommon Mode Noise- Electronic ID Common Mode Subtracted Noise- Software ID average per strip, for all modules average per link, for all modules average per channel, for all modules
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What’s Wrong? Problem with Test Pulse HP2? Signal/Noise Ratio: –Expected to be between 15 and 20 –Average S/N for HP1: ~3 –Average S/N for HP2: ~19 Problem with Test Pulse in HP1 data So why the noisy channels in HP2?
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Single HP2 Test Pulse Run- TELL1 51 (1) Total noise of channels, no average mean = average of Test Pulse RT mean = average of Random Trigger RT mean = 2.08RT mean = 2.19 RT mean = 2.23 RT mean = 2.25 RT mean = 2.13 RT mean = 2.15
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Single HP2 Test Pulse Run- TELL1 51 (2) Total noise of channels, no average mean = average of Test Pulse RT mean = average of Random Trigger RT mean = 2.13 RT mean = 2.11 RT mean = 2.22 RT mean = 2.11RT mean = 2.15 RT mean = 2.20
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