| 摘要 |
<p>The technique involves using spatial and temporal control of, e.g., a rotating X ray emission source and uses adjacent radiation paths for mutual interpolation. Pref. mutual interpolation is also effected between opposed radiation paths produced when the radiation source is at points sepd. by 180 deg. As a result, the centre of a beam path from a first radiation source position (xo'' is offset 1/8 of a set distance (OA) from the centre (0) of the reconstitution region. The centre of the beam path from a second position (XO') is offset 3/8 of the set distance. The centres of beams from third and fourth positions (XN/2) respectively 180 deg. from the first and second positions are offset 1/8 and 3/8 the set distance on the opposite sides of the reconstitution region centre.</p> |
