The tomograp (the greek tomos, meaning cut) is a tool for do studies at human body with the most exactly posibilty and definition.
in 1972, the engineer Godfrey Hounsfield put in functionality the first tomograph, a machine to join the computing with x ray technics, conformation is the best advance in radiology, after x ray.(for this invent Hounsenfield won the nobel price of medicine and the order of Knight of the British Empire in 1979). until now the conventional technique of radiology allows preview, with the problem that images overlap to others, so that lost a important information.
a machine of TC emit a collimated haz of x ray that impact on the study object. the radiation that doesn't has absorbed for