Fast procedures for the beam quality assessment and for the monitoring of beam energy modulations during the irradiation are among the most urgent improvements in particle therapy.Indeed, the online measurement of the particle beam energy could allow assessing the range of penetration during treatments, encouraging the development of new dose delivery techniques for moving targets.
The Mini-EUSO telescope is designed by the JEM-EUSO Collaboration to observe
the UV emission of the Earth from the vantage point of the International Space
Station (ISS) in low Earth orbit. The main goal of the mission is to map the
Earth in the UV, thus increasing the technological readiness level of future
EUSO experiments and to lay the groundwork for the detection of Extreme Energy
Cosmic Rays (EECRs) from space. Due to its high time resolution of 2.5 us,
Mini-EUSO is capable of detecting a wide range of UV phenomena in the Earth's
atmosphere. In order to maximise the scientific return of the mission, it is
necessary to implement a multi-level trigger logic for data selection over
different timescales. This logic is key to the success of the mission and thus
must be thoroughly tested and carefully integrated into the data processing
system prior to the launch. This article introduces the motivation behind the
trigger design and details the integration and testing of the logic.Comment: 24 pages, 11 figures. Accepted for publication in AS
To fully exploit the physics potentials of particle therapy in delivering dose with high accuracy and selectivity, charged particle therapy needs further improvement. To this scope, a multidisciplinary project (MoVeIT) of the Italian National Institute for Nuclear Physics (INFN) aims at translating research in charged particle therapy into clinical outcome. New models in the treatment planning system are being developed and validated, using dedicated devices for beam characterization and monitoring in radiobiological and clinical irradiations. Innovative silicon detectors with internal gain layer (LGAD) represent a promising option, overcoming the limits of currently used ionization chambers. Two devices are being developed: one to directly count individual protons at high rates, exploiting the large signal-to-noise ratio and fast collection time in small thicknesses (1 ns in 50 µm) of LGADs, the second to measure the beam energy with time-of-flight techniques, using LGADs optimized for excellent time resolutions (Ultra Fast Silicon Detectors, UFSDs). The preliminary results of first beam tests with therapeutic beam will be presented and discussed.
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