Radiation Monitoring Device is a device for monitoring alpha particles and material emitting alpha particles such as radon and its daughters. The device can also be used for monitoring other high energy particles such as cosmic rays, nuclear fission fragments, nucleon ions and neutrons having energy between 0.1 and 200 MeV. In the operation of the invention, the high energy particles pass through and degrade tracks in a track registering material placed on a carrier substrate. These tracks are enlarged with a developing agent which etches the initial tracks. The enlarged tracks are then visualized by means of a color change in the immediate vicinity of these tracks.

Digital Radiography offers improved image quality as well as provide advances in medical image management, computer-aided diagnosis and teleradiology. Image quality is intimately linked to the precise and accurate acquisition of information from the x-ray beam transmitted by the patient, i.e. to the performance of the x-ray detector. Detectors for digital radiography must meet the needs of the specific radiological procedure where they will be used. Key parameters are spatial resolution, uniformity of response, contrast sensitivity, dynamic range, acquisition speed and frame rate. Digital radiography Devices include various phosphor x-ray converters, in which light quanta are produced as an intermediate stage, as well as direct x-ray-to-charge conversion materials such as zinc cadmium telluride, amorphous selenium and crystalline silicon.