Table 2 Beam setup for synchrotron broad-beam and microbeam radiation therapy used in this study. All these quantities were measured at the in vitro model sample position. Uncertainties were evaluated within one standard deviation.

From: Three-dimensional bioprinted in vitro glioma tumor constructs for synchrotron microbeam radiotherapy dosimetry and biological study using gelatin methacryloyl hydrogel

  

Rectangular slab phantom

Rat phantom

Human head phantom

SBB

Intrinsic dose rate (Gy/s)

203.26 ± 7.52

at 20 mm

214.04 ± 1.74

at 6.25 mm

56.68 ± 3.76

at 20 mm

Beam size & BDA

20 mm × 20 mm;

0.546 mm

10 mm × 10 mm; 0.25 mm

10 mm × 10 mm; 0.546 mm

MRT

Beam size & BDA

20 mm × 20 mm;

1.0 mm

10 mm × 10 mm; 1.0 mm

10 mm × 10 mm; 0.546 mm

PVDR

13.51 ± 3.77

50.78 ± 2.54

9.95 ± 0.76

  1. SBB: Synchrotron Broad-Beam, MRT: Microbeam Radiation Therapy, BDA: Beam Defining Aperture, PVDR: Peak Valley Dose Ratio.
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