Fig. 1 | Scientific Reports

Fig. 1

From: Experimental characterization of proton minibeam therapy delivery under FLASH dose-rate conditions

Fig. 1

Proton minibeam multi-slit collimators and depth-dose validation. (A) 6.5 cm-thick collimator and (B) 10.0 cm-thick collimator, each featuring five slits with 1.0 mm width and 2.8 mm center-to-center spacing. Both collimators were fabricated from brass and mounted on the small snout of the ProteusONE nozzle. (C) Comparison of percent-depth-dose (PDD) curves between Monte Carlo simulation and Gafchromic film measurements of the 10.0 cm-thick MSC. The depths corresponding to the laterally extracted profiles used for quantitative analysis are indicated.

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