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Explore the setup of a sophisticated optical calibration system for precise HF measurements. This system includes various components like a calibration box with N2 laser, PMT boxes, fiber to fiber ratio, and light guide assemblies for accurate photon measurements. Discover the detailed process involved in calibrating the HF counting room equipment for optimal performance.
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HF Calibration Optical Fiber Path HF + Counting Room Calib Box N2 Laser 9 Calib Box 9 300 mJ 337 nm 600 QP Top Rack Top Rack 300 QQ 150m 9 PMT Boxes 9 PMT Boxes 300 QQ 1 4 9 PMT Boxes 9 PMT Boxes HF - Bottom Rack 9 Bottom Rack 9 Calib Box 600 QP Calib Box 9 PMT Boxes / Quad 24 PMT Tubes / Box 216 PMTs / Quad 864 PMTs / End 1728 PMTs Total
1 x 4 splitter 75 mm 300m QQ 1000m QQ (Silica) 300m QQ SMA Connectors Fiber to Fiber ratio = (1/0.3)2 11 Average in/out measurement 22 N2 Laser 5 x 1014 photons 150 m4 x 1013 8% efficiency (FSU measurement) 1 x 4 splitter 2 x 1012 4% efficiency (FIT measurement)
Calibration Box -1 x 9 splitter PIN Diode 4mm 9mm 9mm 300 QQ QIE LED 1 PIN2 MIXER 50mm 15mm 15mm Polystyrene PIN1 PIN3 LED 2 600 QP 9 Blue Scintilator 8mm 4mm 8mm Pulser 1 x 4 splitter 2 x 1012 photons PIN-22 x 108scaled to FSU measurement Fiber (600 m QP) 3 x 106 To PMT Box
PMT BOX SHIELDING Empty PMT TUBE (CLI) 40cm 600 QP 120 Calibration Tube Light Guide Non-reflective coating 600 QP 5 PMT Light Guide Light Guide Fiber (600m QP) 3 x 106 photons CLI & LG & Fiber3 x 103assume 0.1% efficiency PMT Max 3000 pe 2 x 104
Calibration Light Injector (CLI) Plate 3 Plate 2 Calibration Tube Fiber Ferrule Holographic Diffuser SMA Connector 9cm SMA-SMA connector Jacket Fiber 600 QP SMA Connectors Aspheric Lens 11mm Focal Length Collimation Assembly