METHOD AND DEVICE FOR MEASURING THE LEVEL OF SECONDARY RADIATION PRODUCED BY PRIMARY RADIATION INCIDENT ON A ZONE OF AN OBJECT

摘要

Sequentially object (3) in region (5) is being focused on to measure the primary radiation that the secondary radiation (4,25) of liquid level generates, the region (5) is come from or goes to the present invention claims primary and secondary radiation to be directed toward, beam (17,25) is towards identical optical element (21), these focus on primary radiation and secondary radiation collimation enters optical fiber (30) and leads to measuring unit (29). This wave beam, primary and secondary are with radiating (namely radiation is transmitted to and forwards transmission area (5)) and cylinder coaxial but mutually spatially separated. Scattering and luminous light can only be measured in object from region (5) or otherwise determine. In addition, higher light intensity can be investigation object, the exterior object that light intensity is reduced rapidly, from the environment of the dangerous surrounding without damage or the wall (3) of object in certain points (3). It it is also possible to determine scattering and (1) internal objects (3) that shine uniquely can be position of the light via hole (32), the scattering light and region (5) are definable this degree certainty, therefore can keep away from radiosensitive region.