Mini-BCAL Update June 19, 2012

Ratio

Near to far mV ratios of the twenty SiPM on Mini-BCAL.

Upstream in blue. Downstream in yellow. Trigger voltages set at 6.2V for SiPM 1-9 for both 2nd and third layer while the tenth SiPM trigger voltage recorded at 7.5V.

Second Column

1. SiPM light guide A (layer 1) 1600:2000 mV  ; ratio = 1.25
2. SiPM light guide B (layer 2) 1700:2700 mV  ; ratio = 1.59
3. SiPM light guide C (layer 3) 1300:1600 mV  ; ratio = 1.23
4. SiPM light guide D (layer 4) 800:1800 mV  ; ratio = 2.25
5. SiPM light guide E (layer 5) 500:1500 mV  ; ratio = 3.00
6. SiPM light guide F (layer 6) 900:2300 mV  ; ratio = 2.55
7. SiPM light guide G (layer 7) 1000:2200 mV  ; ratio = 2.2
8. SiPM light guide H (layer 8) 900:1600 mV  ; ratio = 1.78
9. SiPM light guide J (layer 9) 700:1400 mV  ; ratio = 2.00
10. SiPM light guide K (layer 10) 1100:2100 mV  ; ratio = 1.91

Third Column

1. SiPM light guide A (layer 1) 600:1200 mV ; ratio = 2.00
2. SiPM light guide B (layer 2) 700:2500 mV ; ratio = 3.57
3. SiPM light guide C (layer 3) 800:1500 mV ; ratio = 1.88
4. SiPM light guide D (layer 4) 650:1700 mV ; ratio = 2.62
5. SiPM light guide E (layer 5) 600:1500 mV ; ratio = 2.50
6. SiPM light guide F (layer 6) 550:1250 mV ; ratio = 2.27
7. SiPM light guide G (layer 7) 800:1800 mV ; ratio = 2.25
8. SiPM light guide H (layer 8) 600:1800 mV ; ratio = 3.00
9. SiPM light guide J (layer 9) 700:1500 mV ; ratio = 2.14
10. SiPM light guide K (layer 10) 500:1500 mV ; ratio = 3.00