A transmission grating (TrG) monochromator has been constructed and operated on the ALLADIN storage ring in Wisconsin in March–June of 1987. The x-ray source was a recently installed 30-period permanent magnet (PM) undulator with a 6.1-cm period. The monochromator configuration employed a single-bent focusing mirror between the source and the exit slit, with a gold transmission grating located between the mirror and the exit slit. The effective entrance slit was the circulating electron beam inside the ring. In this article, the performance of the monochromator in terms of its power loading capability is described.
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Tatchyn et al. (1989) studied this question.