A simple method to increase the current range of the TERA chip in charged particle therapy applications

Cirio, R.; Fausti, F.; Guarachi, L Fanola; Giordanengo, S.; Marchetto, F.; Mazza, G.; Monaco, V.; Sacchi, R.; Talpacci, E; Anvar, Mohammad Varasteh; Vignati, A.

doi:10.1016/j.nima.2015.07.013

Cited by 5 publications

(3 citation statements)

References 8 publications

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“…An attempt to increase the current range of the existing front-end readout has been done by Cirio et al 174 Exploiting the availability of several readout channels in the TERAchip ASIC, 168 the proposed method evenly splits the input current from a detector element into several readout channels and adds up all the counts of these readout channels to reconstruct the input current. Such an arrangement allows to extend the input current range proportionally to the number of channels used, and the good linearity observed for each channel individually is preserved.…”

Section: E1 Limitations Of Present Equipmentmentioning

confidence: 99%

“…An attempt to increase the current range of the existing front‐end readout has been done by Cirio et al . Exploiting the availability of several readout channels in the TERAchip ASIC, the proposed method evenly splits the input current from a detector element into several readout channels and adds up all the counts of these readout channels to reconstruct the input current.…”

Section: Detectors For Beam Monitoringmentioning

confidence: 99%

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Dose detectors, sensors, and their applications

Giordanengo

2018

Medical Physics

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This article is intended to present the different types of particle and radiation detectors available for applications in particle therapy. Several types of detectors and sensors exist for measurements of absorbed dose in reference and nonreference conditions and the ones in use for beam monitoring. Therefore, this manuscript focuses on the following applications: (a) primary methods for dosimetry in ion beams, (b) measurements of absorbed dose in realistic patient‐specific scenarios with different dose delivery configurations, and (c) beam monitoring. Water and graphite calorimeters, Faraday cups, ionization based gas detectors are described first, followed by the description of the protocols for proton and ion dosimetry. Then films, scintillator and solid‐state detectors are reviewed. Finally, several types of ionization chambers (large, pinpoint, arrays of chambers arranged in regular 1D or 2D pattern, parallel‐plate configuration with large integral electrodes or with anode segmented in strips or pixels, multi‐wire, and the multi‐gap prototype) have been considered. New beam monitors to deal with a wide range of intensity and pulsed beams expected from new accelerators, different dose fractionation and advanced delivery techniques are presented. The existing detectors available for particle therapy have been described taking into account the different requirements for devices used in reference and nonreference conditions and the ones designed for beam monitoring.

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Section: E1 Limitations Of Present Equipmentmentioning

confidence: 99%

Section: Detectors For Beam Monitoringmentioning

confidence: 99%

Dose detectors, sensors, and their applications

Giordanengo

2018

Medical Physics

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“…The readout system used is based on the TERA08 integrated circuit, designed for medical applications by the INFN group of Torino [28]. Initially developed as a front-end electronic readout for gas monitor chambers, TERA08 performs a conversion from the instantaneous current to a digital pulse frequency, where each digital pulse corresponds to a fixed input charge quantum.…”

Section: Tera08 Front-endmentioning

confidence: 99%

First experimental validation of silicon-based sensors for monitoring ultra-high dose rate electron beams

Medina,

Ferro,

Abujami

et al. 2024

Front. Phys.

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Monitoring Ultra-High Dose Rate (UHDR) beams is one of the multiple challenges posed by the emergent FLASH radiotherapy. Technologies (i.e., gas-filled ionization chambers) nowadays used in conventional radiotherapy are no longer effective when applied to UHDR regimes, due to the recombination effect they are affected by, and the time required to collect charges. Exploiting the expertise in the field of silicon sensors’ applications into clinics, the medical physics group of the University and INFN Torino is investigating thin silicon sensors as possible candidates for UHDR beam monitoring, exploiting their excellent spatial resolution and well-developed technology. Silicon sensors of 30 and 45 µm active thicknesses and 0.25, 1 and 2 mm2 active areas were tested at the SIT ElectronFlash machine (CPFR, Pisa) on 9 MeV electron beams, featuring a pulse duration of 4 µs, a frequency of 1 Hz, and a dose-per-pulse ranging from 1.62 to 10.22 Gy/pulse. The silicon sensors were positioned at the exit of the ElectronFlash applicator, after a solid water build-up slab, and were readout both with an oscilloscope and with a multi-channel front-end readout chip (TERA08). A response linearity extending beyond 10 Gy/pulse was demonstrated by comparison with a reference dosimeter (FlashDiamond), thus fulfilling the first requirement of a potential application in UHDR beam monitoring.

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