Advanced nuclear medicine system

A method of acquiring an analog electrical pulse signal caused by a radiation event impinging on a plurality of detector units, for forming an image based on a plurality of said events, each of which is captured by some of said detector units, comprising:

• adding a resolution enhancement signal to said analog signal;
• and
• converting said analog signal, after adding said resolution enhancement signal, to a digital signal,
• wherein, said resolution enhancement signal is fast varying relative to a duration of a pulse in said analog signal and wherein said resolution enhancement signal enhances the resolution of said analog to digital conversion.

A method for correcting and transforming acquired radiation events on an event-by-event basis, comprising:

• (a) correcting a radiation event for at least one of linearity, energy and/or sensitivity errors;
• (b) geometrically transforming said radiation event, in an independent manner from (a), wherein said geometrical transforming is not related to linearity correction;
• and
• (c) assigning said corrected and transformed radiation event to a position in a matrix.