TARGET IRRADIATION DEVICE Russian patent published in 2001 - IPC

FIELD: radiation engineering; irradiation of internal targets. SUBSTANCE: device has radiation source, collimator, and chamber accommodating target to be irradiated. Charging hole is provided on radiation-shaded side of chamber. Two light pipes are installed opposite to charging hole beyond chamber at certain angle to each other so that their optical axes cross collimator axis at point aligned with target center. Chamber is mounted for displacement from working position through distance at which point of intersection of light pipes is not shaded by chamber along collimator axis. EFFECT: enhanced precision of target positioning and control relative to radiation source collimator using simple facilities without injury to vessel. 2 dwg