Speaker
Dr
Nicola Minafra
(The University of Kansas)
Description
A Low Gain Avalanche Detector (LGAD) was used to characterize a linear accelerator (LINAC) used for radiotherapy at St. Luke Hospital in Dublin. The LINAC, manufactured by ELEKTA, can produce an electron beam with energies between 5 and 15 MeV in pulses of ~2 us with a substructure of 3 GHz. A tungsten target is used to produce up to 10^11 photons/s mm2 X-rays (bremsstrahlung) that are used for the treatment. The X-ray beam is contaminated with electrons produced by interaction with air. We characterized the beam using a fast detector sensitive to single photons and electrons. A permanent magnet was used to study the energy spectrum of the electrons directly produced by the LINAC and produced by the interactions with air, while a set of absorbers were used to simulate interactions in the human body.
Primary author
Dr
Nicola Minafra
(The University of Kansas)
Co-authors
Prof.
Brendan McClean
(UCD and St. Luke's Hospital, Dublin)
Prof.
Christophe Royon
(The University of Kansas)
Mr
Luke Rock
(UCD and Beacon Hospital, Dublin)
Ms
Naomi Raab
(University College Dublin)
Prof.
Patrick McCavana
(St. Luke's Hospital, Dublin)
Prof.
Ronan McNulty
(University College Dublin)
Mr
Tommaso Isidori
(The University of Kansas)
