Research Masterclass in Radiotherapy Physics 2017

A compact microbeam source Can an x-ray tube generate microbeams?

50

160 kV tube, 5 mA, small focal spot, 1 mm Al Filter

ID17 beamline at the European Synchrotron

Dose rate

1.2 Gy/s

15,000 Gy/s

Mean energy

55 keV

100 keV

Source distance

0.075 m

> 40 m

Main problems:

Beam divergence, extremely low output power, geometric shadowing due to source size