Dose-meter for ionising radiation, esp. gamma rays or neutrons - includes probe contg. several radiation sensors inside protective sheath, and probe reader

摘要

The appts. includes a sensor probe (a), and a probe reader (b), both of which can be suspended from a belt on a human body or other object. Probe (a) consists of a rod contg. two polished recesses. In one recess is a rod made of photoluminescent glass sensitive to thermal neutrons, whereas the other recess contains a photoluminescent glass rod sensitive to gamma rays. Probe (a) also contains a semiconductor sensitive to fast neutrons, and/or an X-ray sensor. Probe (a) is located in a removable sheath permeable to the radiation being measured but protecting the probe from rain or gas. Each probe (a) can be inserted in a tubular reader (b) contg. measuring devices for monitoring the photoluminescent glass- and other sensors in probe (a). An inexpensive appts. which is not affected by rain, dust or gas, so accurate measurements are always obtd.