An improved centroid localization algorithm based on acoustic for proton range verification

Autor:	Jun Yang, Jiaquan Ye, Nie Lanxin, Kun Tang
Rok vydání:	2021
Předmět:	Physics Range (particle radiation) Time of arrival Speed of sound Bragg peak Trilateration Algorithm Signal Beam (structure) Pulse (physics)
Zdroj:	IOP Conference Series: Earth and Environmental Science. 657:012079
ISSN:	1755-1315 1755-1307
DOI:	10.1088/1755-1315/657/1/012079
Popis:	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 × 107protons) 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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d2c249970c1df1dd645409b99f0d2cdf https://doi.org/10.1088/1755-1315/657/1/012079 Zobrazit plný text záznamu