(b) For m= 1 the above equation gives θ= 14.4°. The crystal should be turned 4514.430.6φ=°− °= °clockwise. (c) For m= 3 the above equation gives = 48.1°. The crystal should be turned 48.1453.1−°=°counterclockwise. (d) For m= 4 the above equation gives = 82.8°. The crystal should be turned 82.84537.8−°counterclockwise. Note that there are no intensity maxima for m> 4 as one can verify by noting that mλ/2dis greater than 1 for mgreater than 4. 73. We want the reflections to obey the Bragg condition 2
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This note was uploaded on 06/03/2011 for the course PHY 2049 taught by Professor Any during the Spring '08 term at University of Florida.