Reporting: 31/07/13

1. Reporting: 31/07/13

2. Contents • I. PMT test • II. ASIC board test

3. I. PMT TEST • 1. Area’s distribution • 2.Area function of the input Voltage • 3.Trigger rate & noise

4. I.1 Area’s distribution • Poisson’s distribution • Choose lambda with quadratic errors • Ex : for 1100V quadratic error = 0.446

5. I.1 Area’s distribution • For each voltage. Ex : 1100V

6. I.1 Area’s distribution • No systematic error measured

7. I.2 Area function of the input voltage • Hypothesis: Area = B*V^x • Improvement : • eliminate noise • Choose the same cosmic rays (same frequency on the PMT)

8. I.3 Trigger rate & noise

9. I.3 Trigger rate & noise In fact, 2 poisson’s distribution: signal&noise

10. I.3 Trigger rate & noise • R=98,6% : depedency between ln(V) and ln(A) • A=3,19x10^-35*V^8,06

11. II. ASIC BOARD TEST • 1. Baseline voltages • 2.Measures of the 16 channel

12. II.1 Baseline voltages

13. II.1 Baseline voltages

14. II.2 Measures of 16 channels Stage opérateur - février 2012

15. II.2 Measures of 16 channels Stage opérateur - février 2012

16. II.2 Measures of 16 channels Stage opérateur - février 2012

17. II.2 Measures of 16 channels Stage opérateur - février 2012