OBB Light Detector

CoolOne™ Specifications

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CoolOne™ PMT Housing Specifications

PMT socket 28 mm diameter side on PMT’s
Cooling type Dual stage, thermo-electric cooler with air cooled heat sink
Cooling temperature -20 °C in the PMT chamber
Settling time Reaches desired temperature < 45 minutes
Window and lenses UV-grade synthetic silica 185-2,200 nm (heated to prevent condensation)
Focal length from end of adapter 0.47 inches (12 mm)
Numerical aperture 0.35
Dimensions (WxDxH) 4.1 x 9.5 x 11.5 inches (105 x 240 x 290 mm )
Weight 6 lbs (3 kg)


CoolOne™ High Voltage Supply & Control Specifications

Line voltage 100-240 V, 50 or 60 Hz
Controls HV Adjustment, 10 turns, linear 150 to -1250 V
HV control switch (internal or external)
Connections Temperature monitor, banana socket
HV monitoring, banana socket
Peltier cooling/control, 10-pin connector
PMT HV control, 6-pin connector
+/- 15 V output
External HV control
Indicator lights Red when Peltier heat sink overheats
Green when PMT temperature in range -20 °C +/- 0.5 °C
Dimensions (WxDxH) 10.9 x 12 x 4.5 inches (277 x 305 x 115 mm)
Weight 5 lbs (2.3 kg)


CoolOne™ Multi Mode Electronics Module Specifications

Connections PMT In, BNC connector
Analog Out, BNC connector
Digital Out, BNC connector
DC Power In, from AC adapter
Dimensions (WxDxH) 10.9 x 12 x 4.5 inches (277 x 305 x 115 mm)
Weight 5 lbs (2.3 kg)

Photon Counting Mode

Output TTL, BNC connector
Maximum count rate 10,000,000 cps
Linear count rate (absolute) 3,000,000 cps
Linear count rate (-5% deviation) 7,000,000 cps
Pulse pair resolution 60 ns

Analog Mode

Bandwidth (low, medium jumpers) 10, 30 KHz (default is 30 KHz)
Dead Time 250 ns
Signal Output TTL, BNC connector

Dimensions and Mounting

CoolOne Side View



CoolOne Top View



OBB has a policy of continuous product development and reserves the right to amend part numbers, descriptions and specifications without prior notice.

More Cooled PMT Housing Information




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HORIBA Scientific
Optical Building Blocks
3880 Park Avenue
Edison New Jersey

Tel: 732-494-8660
Fax: 732-623-8129