71.照野(field)為32 cm× 50 cm的gamma camera,下列何者pixel size最小?
(A)Nyquist frequency為1 cycle / cm
(B)Nyquist frequency為2 cycle / cm
(C)Nyquist frequency為4 cycle / cm
(D)Nyquist frequency為8 cycle / cm
詳解 (共 2 筆)
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* 取樣頻率 Nyquist frequ...
私人筆記 (共 2 筆)
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Nyquist 頻率越高,pixel ...