1. An imaging system for imaging a object, comprising: a support member adapted to receive the object in an immobilized state; a removable phosphor screen adapted to transduce ionizing radiation to visible light; first imaging means for imaging the immobilized object in a first imaging mode to capture a first image; and second imaging means for imaging the immobilized object in a second imaging mode, different from the first imaging mode, to capture a second image, wherein the first and second imaging modes are selected from the group: bright-field mode, fluorescence mode, luminescence mode, x-ray mode, and radio isotopic mode.