Gamma-Ray Collimators.

Item Number Style Weight Approximate HVL 
Ir-192 / Se-75		 Compatible Guide Tube
GCN101 Side Throw: 68° Conical 1.75 lb (0.79 kg) 4.3 / 16 Swivel End Guide Tube
TCN799 Side Throw: 60° Conical 1.75 lb (0.79 kg) 4.3 / 16 Fixed  Stop Guide Tube
TCN827 Side Throw: 60° Conical 4.3 lb (1.95 kg) 6.8 / 26 Guide Tube Extension
TCN828 Side Throw: 60° Conical 9.5 lb (4.32 kg) 8.3 / 33 Guide Tube Extension
TCN846 Panoramic: 20° x 360° 4.3 lb (1.95 kg) 7.8 / 28 Guide Tube Extension
SENTINEL Gamma-Ray Source Projector Collimators
Model 799 Side Throw Collimator for SENTINEL Gamma-Ray Source Projectors

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