To achieve high detection FYR%>Em  
efficiency and excellent spatial resolution for incident gamma flux, , fFB.q"
  
a specially fabricated thick microcolumnar    CsI(Tl) scintillator 1i4KZ"A5+  
was optically coupled to the CCD. A prototype SPECT imaging sy+1xnz  
system was assembled by incorporating pinhole/parallel hole Q\&FuU  
collimators in the design. ]S<eO6z  
这个microcolumnar 是什么意思?这一句该怎么翻译 ? 谢谢了