Method and an apparatus for radiography and a radiation detector

An apparatus for use in radiography, comprising

• an X-ray source,
• a gaseous avalanche detector, including electrode arrangements between which a voltage is applied for creating an electrical field, for detecting X-ray photons which have been interfered by an object to be imaged,
• at least two independent detector electrode modules including a plurality of detector electrode elements arranged adjacent to each other, each along a direction essentially parallel to the incident radiation, and
• where said at least two independent detector electrode modules are arranged along a direction essentially parallel to the incident radiation.

A gaseous avalanche detector for detecting incident radiation, including electrode arrangements between which a voltage is applied for creating an electrical field, wherein

• the gaseous avalanche detector comprises:
• a gaseous avalanche chamber for detecting incident radiation, and
• at least two independent detector electrode modules including a plurality of detector electrode elements arranged adjacent to each other, each along a direction being essentially parallel to the incident radiation, and
• where said at least two independent detector electrode modules are arranged along a direction essentially parallel to the incident radiation.