Open AccessAn improved centroid localization algorithm based on acoustic for proton range verification
Author(s) -
Jiaquan Ye,
Jinlong Yang,
Kun Tang,
Lei Nie
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/657/1/012079
Subject(s) - trilateration , centroid , range (aeronautics) , acoustics , signal (programming language) , proton , algorithm , position (finance) , computer science , bragg peak , pulse (music) , physics , beam (structure) , materials science , optics , artificial intelligence , detector , finance , quantum mechanics , node (physics) , economics , composite material , programming language
The proton beam generates a unique acoustic signal, which can be used for range verification. It is a crucial issue to use the acoustic signal for accurate positioning. The propagation of sound waves emitted by a proton pulse(20 MeV, 1 × 10 7 protons) is simulated, and acoustic signals are recorded. The distance between sensors and Bragg Peak is calculated by the time of arrival and speed of sound. An improved centroid localization algorithm based on trilateration is presented to locate the Bragg Peak with the distance. After evaluating the verification accuracy of different methods, the results show that this algorithm significantly improves the verification accuracy.