Products for Research Inc.

Air Heat-Exchanged Multi-Stage Series

Thermoelectric Photomultiplier Tube Chambers

for Tubes of 2.1" (53.4 mm) or less Nominal Diameter

The air heat-exchanged Multi-Stage series includes the TE206RF (end on), TE207RF (side on), and TE406RF (end on) thermoelectrically cooled photomultiplier tube chambers. These chambers utilize cascaded 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 with the Products for Research no-dew apparatus 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 TE206TSRF, TE207TSRF, and TE406TSRF respectively. Chambers in the Multi-Stage series have been designed to accept all interchangeable options and accessories used in conjunction with the standard line of cooled housings for 2.1 inch (53.4 mm) or less nominal diameter photomultipliers.

Unit Type	Description	Performance
TE206RF	Standard multi-stage thermoelectric end on PMT chamber Outline drawing (8K) and Specifications	T > 60°C, w/AIR > 10°C Performance Graph (12K)
TE207RF	Standard multi-stage thermoelectric side on PMT chamber Outline drawing (9K) and Specifications	T > 60°C, w/AIR > 10°C Performance Graph (12K)
TE406RF	Economical multi-stage thermoelectric end on PMT chamber Outline drawing (8K) and Specifications	T > 50°C, w/AIR > 10°C Performance Graph (12K)