Figure 3
Relation between y and t for X-rays of 80.2 keV (Compton peak energy) and n = 0. Here, y is the landing position on the position-sensitive detector (PSD), t is the distance between the diffracting position M and the neutral surface NS, and n is the distance between O on the Rowland circle and on the PSD (see Fig. 2). A crystal thickness T of 1 mm gives a focal width w of 200 µm. |