  Microbeam Radiation Therapy (MRT) is an emerging cancer treatment that is
currently being developed at the European Synchrotron Radiation Facility (ESRF)
in Grenoble, France. This technique uses a highly collimated and fractionated
X-ray beam array with extremely high dose rate and very small divergence, to
benefit from the dose-volume effect, thus sparing healthy tissue. In case of
any beam anomalies and system malfunctions, special safety measures must be
installed, such as an emergency safety shutter that requires continuous
monitoring of the beam intensity profile. Within the 3DMiMic project, a novel
silicon strip detector that can tackle the special features of MRT, such as the
extremely high spatial resolution and dose rate, has been developed to be part
of the safety shutter system. The first prototypes have been successfully
fabricated, and experiments aimed to demonstrate their suitability for this
unique application have been performed. Design, fabrication and the
experimental results as well as any identified inadequacies for future
optimisation are reported and discussed in this paper.
