TY  - CONF
A1  - Hermann, Richard Leopold
A1  - Haberer, Thomas
A1  - Jäkel, Oliver
A1  - Peters, Andreas
A1  - Leverington, Blake
A1  - Gehrke, Tim
T1  - Advancements in the scintillation fibre beam monitor for low-intensity ion beams at HIT
T2  - IPAC'23 : 14th International Particle Accelerator Conference, 7-12 May 2023, Venice, Italy : proceedings
N2  - The Heidelberg Ion-Beam Therapy Centre (HIT) provides proton, helium, and carbon-ion beams with different energies and intensities for cancer treatment and oxygen-ion beams for experiments. For several experiments and possible future applications, such as helium ion beam radiography, a low-intensity ion beam monitor integrated into the dose delivery feedback system for the accelerator control is a necessary pre-requisite. The updated 2D prototype for this purpose consists of scintillating fibres with enhanced radiation hardness, silicon photomultipliers (SiPMs) to amplify the emitted light, and a dedicated front-end readout system (FERS) to process and record the generated signals. This setup was tested successfully on monitoring ion-beam position and profile horizontally and vertically, as well as the beam intensity, for all four ion types with energies from 50 to 430 MeV/u and intensities from 1E2 to 1E7 ions/s. Additionally, time-of-arrival (ToA) measurements on single ions have been successfully performed for a limited intensity range, allowing for ion tracking in a further update. This will reduce noise, and will also improve the accuracy and usability of ion radiography.
Y1  - 2023
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/69463
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-694633
SN  - 978-3-95450-231-8
SN  - 2673-5490
SP  - 4696
EP  - 4698
PB  - JACoW Publishing
CY  - Geneva
ER  -