Radiation Control Device Notification Timing
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Solution Overview
Problem
In integrated X-ray imaging systems, delays in signal transmission and frame switching cause inaccuracies in notifying the X-ray irradiation state, particularly during short irradiation periods, making it difficult to reliably indicate the radiation irradiation state.
Innovation Solution
A radiation control device that includes a notifier and a notification controller, which controls the start timing of the irradiation state notification based on signals from the radiation generator or imager prior to the radiation irradiation signal from the radiation generation controller, ensuring timely and accurate display of the irradiation state.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If display control is performed in accordance with the X-ray irradiation signal from the radiation generation controller, then the notification follows the irradiation signal timing, but signal transmission delay and frame switching delay cause the notification to be delayed and inaccurate during short irradiation periods
Solution Approach 1:
The notification controller starts the irradiation state notification in advance based on a preliminary signal from the radiation generator or imager, before the actual X-ray irradiation signal is issued. This preliminary action compensates for the signal transmission delay and frame switching delay, ensuring the notification is accurate and timely during short irradiation periods.
2Productivity
If the X-ray irradiation period is very short (about 50 msec), then the imaging is efficient, but the delay due to signal transmission and frame switching makes it impossible to accurately notify the irradiation state
Solution Approach 1:
By initiating the notification based on a preliminary signal before the actual irradiation signal, the system compensates for the inherent delays in signal transmission and frame switching. This allows short irradiation periods (about 50 msec) to maintain both high imaging speed and accurate notification reliability.
3Stability of the object's composition
If display device frame switching timing causes delay, then the display updates at fixed intervals, but this creates timing mismatch with the rapid X-ray irradiation state changes
Solution Approach 1:
The notification controller anticipates the frame switching delay by starting the notification in advance based on the preliminary signal. This ensures that even though the display updates at fixed frame intervals, the notification timing remains synchronized with the actual irradiation state changes.
Data Source
AI summary
A radiation control device includes a notifier that notifies an irradiation state of a radiation in a radiation generator, and a notification controller that controls notification operation of the notifier. The notification controller controls a start timing of notification of a state during irradiation indicating that the radiation is being emitted on the basis of a signal from the radiation generator or a radiation imager received by the radiation control device prior to a radiation irradiation signal from a radiation generation controller.