The researchers examined two crystal arrays: a 4 x 4 matrix of square-shaped LYSO crystals (“square array”); and 16 triangular-shaped LYSO crystals (“triangular array”). They coupled the two crystal ...

Figure 3: Scanning SQUID micrograph of a two-dimensional triangular array of π-loops (10-µm-wide facets, 25-µm spacing) in an 80 µm × 80 µm area.