Air Heat-Exchanged Thermoelectric

Cooled Photomultiplier Tube Chambers

for Tubes of 1.1" (30 mm) or less Nominal Diameter

This marked, forced air heat-exchanged PHOTOCOOL, series includes the PC178CE (end on), PC202CE (side on), and PC355CE (side on) thermoelectrically cooled photomultiplier tube chambers. These chambers utilize single stage Peltier devices to achieve temperatures needed for superior detector performance, while maintaining the convenience of thermoelectric cooling. These PMT coolers are provided complete with magnetic, electrostatic and RFI shielding, a double pane evacuated window cell designed to prevent formation of condensation in the light path, the low voltage DC power supply to drive the Peltier devices, and the appropriate PMT socket assembly. Digital PID Temperature Control is available as Option 36, and if included, changes the type numbers to PC178TSCE, PC202TSCE, and PC355TSCE respectively. Chambers in this air heat-exchanged standard series have been designed to accept all interchangeable options and accessories used in conjunction with the PHOTOCOOL line of cooled housings for 1.1 inch (30 mm) or less nominal diameter photomultipliers.

Unit Type	Description	Performance
PC178CE	PHOTOCOOL forced air heat exchanged thermoelectric PMT chamber for 30 mm diameter end on PMT's Outline drawing (8K) and Specifications	T > 40°C, w/AIR > 0°C Performance Graph (10K)
PC202CE	PHOTOCOOL forced air heat exchanged thermoelectric PMT chamber for 30 mm diameter side on PMT's Outline drawing (8K) and Specifications	T > 40°C, w/AIR > 0°C Performance Graph (10K)
PC355CE	PHOTOCOOL forced air heat exchanged thermoelectric PMT chamber for 30 mm diameter side on PMT's Outline drawing (9K) and Specifications	T > 40°C, w/AIR > 0°C Performance Graph (10K)