Video Experimental Relacionado

Updated: Jan 7, 2026

X-ray Dose Reduction through Adaptive Exposure in Fluoroscopic Imaging

X-ray Dose Reduction through Adaptive Exposure in Fluoroscopic Imaging

Published on: September 11, 2011

Impacto de la frecuencia del inversor del generador de alto voltaje en el rendimiento de imagen del sistema de

Tao Li¹, Xiaobin Ma¹, Zheng Fan¹

¹Yunnan Institute of Medical Device Testing, Kunming, 650106.

Zhongguo yi liao qi xie za zhi = Chinese journal of medical instrumentation

|December 25, 2025

Abstract:

This paper introduces and analyzes the principles and structure inside the high-voltage generator, and for the first time proposes the viewpoint that using an inverter to increase the inverter frequency can enhance the imaging performance of the digital radiography (DR) system. The theoretical basis for using an inverter to increase the inverter frequency to eliminate ripple is analyzed. Considering the characteristics of ripple, a pulse width modulation (PWM) inverter circuit based on insulated gate bipolar transistor (IGBT) is designed to suppress the ripple generated inside the high-voltage generator. For the first time, detective quantum efficiency (DQE) is introduced to quantitatively analyze the DR imaging performance before and after the installation of the inverter, in order to verify whether the addition of the inverter frequency module has improved the imaging performance.

Palabras clave:

Rayos X rendimiento de imagen inversor rizado

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