Feasibility study of 3D time‐reversal reconstruction of proton‐induced acoustic signals for dose verification in the head and the liver: a simulation study

2021 ◽  
Author(s):  
Yajun Yu ◽  
Pengyuan Qi ◽  
Hao Peng
Keyword(s):  
Feasibility Study ◽  
Simulation Study ◽  
Time Reversal ◽  
Acoustic Signals ◽  
Dose Verification

scholarly journals Locating Ships Using Time Reversal and Matrix Pencil Method by Their Underwater Acoustic Signals

Sensors ◽  
2021 ◽  
Vol 21 (15) ◽  
pp. 5065
Author(s):  
Daniel Chaparro-Arce ◽  
Sergio Gutierrez ◽  
Andres Gallego ◽  
Cesar Pedraza ◽  
Felix Vega ◽  
...  
Keyword(s):  
Time Reversal ◽  
Communication Channel ◽  
Matrix Pencil ◽  
Acoustic Signals ◽  
Underwater Acoustic ◽  
Low Bit Rate ◽  
Matrix Pencil Method ◽  
The Matrix ◽  
Resonance Expansion ◽  
Passive Sensors

This paper presents a technique, based on the matrix pencil method (MPM), for the compression of underwater acoustic signals produced by boat engines. The compressed signal, represented by its complex resonance expansion, is intended to be sent over a low-bit-rate wireless communication channel. We demonstrate that the method can provide data compression greater than 60%, ensuring a correlation greater than 93% between the reconstructed and the original signal, at a sampling frequency of 2.2 kHz. Once the signal was reconstituted, a localization process was carried out with the time reversal method (TR) using information from four different sensors in a simulation environment. This process sought to achieve the identification of the position of the ship using only passive sensors, considering two different sensor arrangements.

Feasibility study of a dual detector configuration concept for simultaneous megavoltage imaging and dose verification in radiotherapy

2015 ◽  
Vol 42 (4) ◽  
pp. 1753-1764 ◽  
Author(s):  
Shrikant Deshpande ◽  
Aimee L. McNamara ◽  
Lois Holloway ◽  
Peter Metcalfe ◽  
Philip Vial
Keyword(s):  
Feasibility Study ◽  
Dose Verification ◽  
Megavoltage Imaging ◽  
Dual Detector

Feasibility Study for Development of Transit Dosimetry Based Patient Dose Verification System Using the Glass Dosimeter

2015 ◽  
Vol 26 (4) ◽  
pp. 241
Author(s):  
Seonghoon Jeong ◽  
Myonggeun Yoon ◽  
Dong Wook Kim ◽  
Weon Kuu Chung ◽  
Mijoo Chung ◽  
...  
Keyword(s):  
Feasibility Study ◽  
Patient Dose ◽  
Dose Verification ◽  
Verification System ◽  
Glass Dosimeter ◽  
Transit Dosimetry ◽  
Patient Dose Verification

Simulation studies of time reversal‐based protoacoustic reconstruction for range and dose verification in proton therapy

2019 ◽  
Vol 46 (8) ◽  
pp. 3649-3662 ◽  
Author(s):  
Yajun Yu ◽  
Zhongxing Li ◽  
Dong Zhang ◽  
Lei Xing ◽  
Hao Peng
Keyword(s):  
Proton Therapy ◽  
Time Reversal ◽  
Simulation Studies ◽  
Dose Verification

scholarly journals NUMERICAL SIMULATION STUDY ON DEPOSITION DOWNSTREAM ESTUARINE SLUICE

2012 ◽  
Vol 1 (33) ◽  
pp. 8 ◽  
Author(s):  
Xiping Dou ◽  
Xinzhou Zhang ◽  
Xiangming Wang ◽  
Jinhua Wang
Keyword(s):  
Numerical Simulation ◽  
Numerical Model ◽  
Physical Model ◽  
Feasibility Study ◽  
Simulation Study ◽  
Salt Intrusion ◽  
3D Numerical Model ◽  
2D Numerical Model

In order to resist tides and salt intrusion, there have been more than 300 tidal gates built at many river estuaries in China since 1960s. However, the serious deposition occurred at a lot of gates due to the changes of hydrodynamic and sediment conditions and lack of discharge from the rivers. At present, the research is mainly to analyze the reasons for siltation downstream gates and the measures of dredging. It is not enough for study on distribution simulation of deposition downstream sluice. Studies have shown that 2D numerical model cannot reflect the distribution of sediment siltation downstream gates. Therefore, it needs to develop 3D sediment numerical model for deposition prediction. In this paper, combined the feasibility study of a tidal gate at Mulanxi River, a physical model and 3D numerical model of sediment siltation downstream gate are conducted.

SU-E-T-32: A Feasibility Study of Independent Dose Verification for IMAT

2015 ◽  
Vol 42 (6Part12) ◽  
pp. 3338-3338 ◽  
Author(s):  
T Kamima ◽  
R Takahashi ◽  
H Baba ◽  
M Yamashita ◽  
Y Sugawara ◽  
...  
Keyword(s):  
Feasibility Study ◽  
Dose Verification

SU-F-T-268: A Feasibility Study of Independent Dose Verification for Vero4DRT

2016 ◽  
Vol 43 (6Part17) ◽  
pp. 3524-3524 ◽  
Author(s):  
M Yamashita ◽  
R Takahashi ◽  
M Kokubo ◽  
K Takayama ◽  
H Tanabe ◽  
...  
Keyword(s):  
Feasibility Study ◽  
Dose Verification

TH-AB-201-01: A Feasibility Study of Independent Dose Verification for CyberKnife

2016 ◽  
Vol 43 (6Part43) ◽  
pp. 3849-3849
Author(s):  
A Sato ◽  
T Noda ◽  
Y Keduka ◽  
T Kawajiri ◽  
M Itano ◽  
...  
Keyword(s):  
Feasibility Study ◽  
Dose Verification
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