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RIS citation export for THPMP043: Non-Invasive Beam Monitoring Using LHCb VELO With 40 MeV Protons

AU  - Schnuerer, R.
AU  - Price, T.
AU  - Szumlak, T.
AU  - Welsch, C.P.
AU  - Yap, J.S.L.
AU  - Zhang, H.D.
ED  - Boland, Mark
ED  - Tanaka, Hitoshi
ED  - Button, David
ED  - Dowd, Rohan
ED  - Schaa, Volker RW
ED  - Tan, Eugene
TI  - Non-Invasive Beam Monitoring Using LHCb VELO With 40 MeV Protons
J2  - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019
CY  - Melbourne, Australia
T2  - International Particle Accelerator Conference
T3  - 10
LA  - english
AB  - In proton beam therapy, knowledge of the detailed beam properties is essential to ensure effective dose delivery to the patient. In clinical practice, currently used interceptive ionisation chambers require daily calibration and suffer from slow response time. This contribution presents a new non-invasive method for dose online monitoring. It is based on the silicon multi-strip sensor LHCb VELO (VErtex LOcator), developed originally for the LHCb experiment at CERN. The semi-circular detector geometry offers the possibility to measure beam intensity through halo measurements without interfering with the beam core. Results from initial tests using this monitor in the 40 MeV proton beamline at the University of Birmingham, UK are shown. Synchronised with an ionisation chamber and the RF cyclotron frequency, VELO was used as online monitor by measuring the intensity in the proton beam halo and using this information as basis for 3D beam profiles. Experimental results are discussed.
PB  - JACoW Publishing
CP  - Geneva, Switzerland
SP  - 3541
EP  - 3544
KW  - detector
KW  - proton
KW  - cyclotron
KW  - experiment
KW  - monitoring
DA  - 2019/06
PY  - 2019
SN  - 978-3-95450-208-0
DO  - DOI: 10.18429/JACoW-IPAC2019-THPMP043
UR  - http://jacow.org/ipac2019/papers/thpmp043.pdf
ER  -