To achieve high detection % xH>0 efficiency and excellent spatial resolution for incident gamma flux, e3HF"v]2! a specially fabricated thick microcolumnar CsI(Tl) scintillator b&U5VA0= 1 was optically coupled to the CCD. A prototype SPECT imaging 4fU5RB7% system was assembled by incorporating pinhole/parallel hole a=}">=]7 collimators in the design. U 8qKD 这个microcolumnar 是什么意思？这一句该怎么翻译 ？ 谢谢了