(a) Block diagram of typical computer-controlled diffractometer and electronic circuits. ... HPIB is the interface bus. ... In this section, only the fixed-time method is described because the fixed-count method takes too long for most practical applications. ... Q = 0.67 for the probable relative error e50 (50% confidence level ) and Q = 1.64 and 2.58 for the 90 and 99% confidence levels (e90, e99), respectively.

Title | : | International Tables for Crystallography: Mathematical, physical, and chemical tables |

Author | : | Arthur James Cochran Wilson |

Publisher | : | - 1992 |

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