To achieve high detection c.e2 M/  
efficiency and excellent spatial resolution for incident gamma flux,  sjV!5Z  
a specially fabricated thick microcolumnar    CsI(Tl) scintillator %xyou:~0zs  
was optically coupled to the CCD. A prototype SPECT imaging Kh_Lp$'0uM  
system was assembled by incorporating pinhole/parallel hole 	WA&!;Zq  
collimators in the design. 5f	5f0|ok  
这个microcolumnar 是什么意思?这一句该怎么翻译 ? 谢谢了