Ionising radiation detection - comprises use of dosimeter with MOSFET transistor with floating gate, with ionising radiation affecting surface of gate through open air or gas space, etc.

摘要

Detecting ionising radiation comprises use of a dosimeter which incorporates a MOSFET transistor (10) provided with a floating gate (13).The ionizing radiation is allowed to affect the surface of the floating gate (13) of MOSFET transistor (10) through an open air or gas space or a closed air or gas space (24). For this purpose, an uncovered area (17) is formed on the surface of floating gate (13), or there is an area covered by a conductor, semiconductor or insulator. Also claimed is an ionising radiation detector/dosimeter comprising a MOSFET transistor (10) provided with a floating gate (13). A part of the surface of gate (13) is uncovered, or covered by a conductor, semiconductor or thin insulator. The floating gate surface is located in an open air or gas space or closed air or gas space.