scholarly journals Evaluation of position-estimation methods applied to CZT-based photon-counting detectors for dedicated breast CT

2015 ◽  
Vol 2 (2) ◽  
pp. 023501 ◽  
Author(s):  
Andrey Makeev ◽  
Martin Clajus ◽  
Scott Snyder ◽  
Xiaolang Wang ◽  
Stephen J. Glick
Keyword(s):  
Photon Counting ◽  
Position Estimation ◽  
Estimation Methods ◽  
Breast Ct ◽  
Dedicated Breast Ct ◽  
Photon Counting Detectors

Achieving sub-pixel resolution using CZT-based photon counting detectors for dedicated breast CT

2013 ◽  
Author(s):  
Andrey Makeev ◽  
John McGrath ◽  
Martin Clajus ◽  
Scott Snyder ◽  
Stephen J. Glick
Keyword(s):  
Photon Counting ◽  
Pixel Resolution ◽  
Breast Ct ◽  
Dedicated Breast Ct ◽  
Photon Counting Detectors

SU-FF-I-139: Low Dose Breast CT with Photon Counting Detectors: A Phantom Study

2009 ◽  
Vol 36 (6Part5) ◽  
pp. 2467-2467
Author(s):  
H Le ◽  
J Ducote ◽  
M Klopfer ◽  
S Molloi
Keyword(s):  
Low Dose ◽  
Photon Counting ◽  
Phantom Study ◽  
Breast Ct ◽  
Photon Counting Detectors

Tantalum superconducting tunnel junctions for photon counting detectors

2002 ◽  
Vol 12 (3) ◽  
pp. 145-148
Author(s):  
C. Jorel ◽  
P. Feautrier ◽  
J.-C. Villégier ◽  
A. Benoit
Keyword(s):  
Tunnel Junctions ◽  
Photon Counting ◽  
Superconducting Tunnel Junctions ◽  
Photon Counting Detectors

scholarly journals Experimental measurement of radiation dose in a dedicated breast CT system

2014 ◽  
Vol 38 (3) ◽  
pp. 038201
Author(s):  
Shan-Wei Shen ◽  
Yan-Fang Wang ◽  
Hang Shu ◽  
Xiao Tang ◽  
Cun-Feng Wei ◽  
...  
Keyword(s):  
Radiation Dose ◽  
Experimental Measurement ◽  
Breast Ct ◽  
Dedicated Breast Ct ◽  
Ct System

Analysis and Simulation of Low Speed Sensorless Vector Control with Two Current Signal Injection Schemes

2013 ◽  
Vol 722 ◽  
pp. 361-368
Author(s):  
Yu Dong Li ◽  
Bo Zhou ◽  
Ying Liu ◽  
Cheng Liang Zhao
Keyword(s):  
Vector Control ◽  
Permanent Magnet Synchronous Motor ◽  
Low Frequency ◽  
Simulation Models ◽  
Position Estimation ◽  
Estimation Methods ◽  
Current Signal ◽  
Rotor Position ◽  
Sensorless Vector Control ◽  
Signal Injection

Two current signal injection methods, the fluctuating high frequency (HF) current signal injection and low frequency (LF) current signal injection, were discussed. The basic principles of rotor position self-sensing using these current signal injection and the key techniques in implementation were presented and the simulation models for sensorless vector control systems of a permanent magnet synchronous motor (PMSM) were established using two proposed rotor position estimation methods. Comparative simulation study of the fluctuating HF current signal injection and LF current signal injection was investigated, and draw the conclusions that the saliency-tracking scheme using fluctuating HF current signal injection possesses simpler configuration and better speed-adjustable performance both in static and dynamic.

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