Strahlungsmesskammern zur Messung der absorbierenden Dosis ionisierender Strahlung

摘要

An ionization chamber for measuring absorbed radiation is disclosed, the chamber including a housing which incorporates an anode, a cathode, and a space charge electrode. The anode comprises a conducting plate which has a plurality of protruding needle points with each of the needle points and the conducting plate being at the same electrical potential. The space charge electrode has a plurality of holes therein and is physically displaced from the anode with the holes of the space charge electrode being in registry with the needle points of the anode. The potential of the space charge electrode is less than that of the anode itself.