70 likes | 92 Views
Stony Brook Update Bill and Ted’s Excellent Adventure. Excellent!!!. T.K. Hemmick for the Wyld Stallions. Bill S. Preston, Esq. Cosmics seen on all stacks. Gain varies a lot: 2000 – 12000 P/T not corrected. Vlad setting gain balance. Operates stably. Only 5 trips in 10 days. Cube works:
E N D
Stony Brook UpdateBill and Ted’s Excellent Adventure Excellent!!! T.K. Hemmick for the Wyld Stallions
Bill S. Preston, Esq. • Cosmics seen on all stacks. • Gain varies a lot: • 2000 – 12000 • P/T not corrected. • Vlad setting gain balance. • Operates stably. • Only 5 trips in 10 days. • Cube works: • Alphas seen. • 55Fe seen. • Scintillation light seen. • Bob is analyzing data. • Bill works! FORWARD REVERSE
Scintillation Cube studies: • First Fe spectrum seen. • Photo-electron signals seen. • Absolute reference for photo-sensitivity. Spectralon Diffuse UV Reflector 241Am Semi-collimated SBD a-Trigger a 55Fe
Bill Delivered on November 6 • Delivery was very smooth. • Additional delay due to source inside. • Once the detector arrived in the hall, installation to PHENIX was fast.
Ar Flow = 2.5slpm 11/7 [H2O]=30ppm O2 H2O 11/7 [H2O]=3.0ppm 11/10[H2O]=17ppm 11/10 [H2O]=3.5ppm
Ted Theodore Logan • Contaminants good: • < 13 ppm water. • ~3 pm oxygen. • HV applied to all 10 stacks: • 6 stacks perfect on 1st Voltage. • 3 stacks drew initial current but “burned”. • 1 stack has shorted strip • 4-North • 1/280 of active area. • After resistor swap sees cosmics • Ready 1st week December.