Focusing Polycapillary Optics and Their Applications

Table 1

Results for monolithic focusing optic in a synchrotron beam [38]. The spot size was measured using the knife edge technique. The gain was calculated as for (9) taking 𝑓_in∼𝐿, given the low divergence of the synchrotron beam.

X ray Energy (keV)	Spot size (mm)	Transmission (%)	Measured Gain 350 μm pinhole	Calculated Gain 350 μm pinhole
6	0.09	36	78	81
8	0.08	49	96	110
10	0.09	39	83	87
12	0.09	39	74	87
white	0.17	42	11	89