Figure 4 | Scientific Reports

Figure 4

From: Towards high-energy, high-resolution computed tomography via a laser driven micro-spot gamma-ray source

Figure 4

Gamma-ray spectrum from FFS measurements. (a) Raw images from the filter stack. Fifteen filters with different materials and thicknesses were used to measure the gamma-ray energy spectra over 0.01–10 MeV28. (b) Gamma-ray energy spectrum reconstructed from the transmission signals of the FSS. The absolute photon number can be obtained from image plate calibration data. Also plotted curve shows the photon energy deposited in the CsI scintillator used in the high-energy X-ray camera47.

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