X-ray Tube Anode Speed Control for Prompt Image Acquisition
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Solution Overview
Problem
Conventional X-ray diagnostic apparatuses face delays in acquiring fluoroscopic and acquisition images due to the time required to increase the anode's rotating speed from a stopped or low speed to a high speed, which can lead to heat-related issues and reduced operating life of the X-ray tube.
Innovation Solution
The X-ray diagnostic apparatus includes processing circuitry that derives an acquiring condition from a fluoroscopic image and starts to increase the anode's rotating speed from a low speed to a high speed before the X-ray tube finishes emitting X-rays, allowing for more prompt acquisition of images and reducing unnecessary energy consumption and wear on the anode.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If the anode rotating speed is increased from stopped or low speed to high speed before image acquisition, then the image acquisition can start promptly, but the X-ray tube experiences heat-related issues and reduced operating life
Solution Approach 1:
The system performs preliminary action by deriving the acquiring condition from the fluoroscopic image in advance, before the X-ray tube finishes emitting X-rays. This allows the anode rotating speed to be increased proactively based on predicted acquisition needs, rather than waiting for the acquisition command. The processing circuitry analyzes the fluoroscopic image to determine if high-speed acquisition will be needed, and initiates the speed increase during the X-ray emission period, thereby eliminating delay without requiring post-emission speed changes.
2Productivity
If the anode rotating speed is increased quickly to high speed, then image acquisition starts without delay, but energy consumption and wear on the anode increase
Solution Approach 1:
The system applies dynamics by making the anode rotating speed adjustable and adaptive rather than fixed. The processing circuitry dynamically controls the anode rotating speed based on the derived acquiring condition from the fluoroscopic image. When high-quality acquisition is predicted, the speed is increased to high speed; when fluoroscopy continues, the speed remains at low speed. This dynamic adjustment optimizes the balance between acquisition readiness and energy consumption, avoiding unnecessary high-speed operation.
3Speed
If the anode rotating speed is maintained at high speed continuously, then image acquisition can start immediately, but the X-ray tube suffers from heat accumulation and reduced lifespan
Solution Approach 1:
The system changes the operating parameter (anode rotating speed) based on the acquired fluoroscopic image information. The processing circuitry derives the acquiring condition from the image, determining whether high-speed acquisition is actually needed. This conditional parameter change ensures the anode operates at high speed only when necessary for image acquisition, and remains at low speed during fluoroscopy, thereby managing heat accumulation while maintaining acquisition readiness when required.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enables the X-ray diagnostic apparatus to start acquiring images more promptly and efficiently, reducing delays and extending the operating life of the X-ray tube by optimizing the anode's speed transitions.
Implementation Method 1
there is a possibility that the anode is melted due to the heat that is caused by electron collision
Implementation Method 2
the anode is melted due to the heat that is caused by electron collision
Data Source
AI summary
An X-ray diagnostic apparatus comprises an X-ray tube and processing circuitry. The X-ray tube includes a rotary anode. The processing circuitry is configured to derive an acquiring condition from a fluoroscopic image, and start to increase, in accordance with the acquiring condition derived, a rotating speed of the anode from a low rotating speed to a high rotating speed before the X-ray tube finishes emitting an X-ray to acquire the fluoroscopic image.