The computed tomography (CT) is a technique, by which two-dimensional images of a body without perturbing superposition of the structures of the body can be produced. Since 1970 the CT is an essential component in medical diagnostics, because medical doctors are now able to have a look in the inner part of the body of their patients. Besides in medicine the CT is used as an investigation method without destroying the object, such as in material testing or studying trees or mummies.

The RCL computed tomography is a model experiment for the traditional CT; instead of using x-rays laser light is used for visualization. Performing the optical CT the user will be enabled to understand the principle of the CT and can vary different parameters and conditions to test the quality of images.

More advanced and interested users can inform themselves more about medical, physical, mathematical and programming aspects of the CT under topic theory.