Asymmetrically grooved monolithic crystal monochromators for suppression of harmonics in synchrotron X-radiation: erratum

A typographical error has occurred in Hashizume [J. Appl. Cryst. (1983). 16, 420–427]. The first two complete sentences on page 425 should read: A attains a minimum value of 0.024 at b_II = 0.27, where about half of the initial fundamental intensity is preserved. The initial rise of the fundamental intensity, which occurs in the range 1.0 > b_II ≥ 0.64, is accounted for by a close examination of the overlap pattern of R⁽¹⁾_HI and, R⁽¹⁾_0II at the relevant b_II values: the shifted and extended peak profile of R⁽¹⁾_0II admits the high-angle tail of R⁽¹⁾_HI and rejects the low-angle flank of R⁽¹⁾_HI, and the gain due to the former more than compensates for the loss caused by the latter.