A fiber coupler for synchronous test of spatial multi-channel aser adjust fluorescence inclues a laser beam coupled into an exciting fiber with equal power via a beam split mirror and a focussing lens. The output terminal of the exciting fiber is surrounded by exciting collect probes grouped by equal quantity of fluorescent collect fibers and housed with positioning liners. The fluorescent collect fibers in linear array are put in the liner diaphragm and aligned with the slit of spectrometer with a photoelectric transducer on its exit focus surface. This invention can guarantee the same test conditions for laser adjust fluorescent test spots with different spaces including same density of exciting light energy of the test spots, same fluorescent collect spatial angles and same fluorescentspectrom density with same samples.
Computer-tomography apparatus and method