No, an EPO (Emergency Power Off) push button in a readily accessible location in the control room, even if provided by the manufacturer, would not typically be considered the "x-ray disconnect" as required by regulations.Here's why: Purpose of the X-Ray Disconnect

The x-ray disconnect is a dedicated, easily identifiable switch or breaker specifically intended to shut off only the high-voltage power supply to the x-ray tube. Its primary purpose is to immediately stop x-ray production in emergency situations or during maintenance when access to the x-ray source is required.

EPO Functionality

An EPO button, while also serving as a safety mechanism, generally shuts down all electrical power to the equipment, including the control system, the interlocks, and potentially other auxiliary systems. It's a broader emergency shutdown.

Accessibility and Identification

The x-ray disconnect must be clearly labeled and easily accessible near the x-ray equipment or control panel. It should be instantly recognizable as the dedicated x-ray power cut-off.

Regulatory Compliance

Radiation safety regulations (like those from the FDA and state agencies) specifically require a separate, dedicated x-ray disconnect. Using an EPO as a substitute would likely not meet these requirements.

In summary

Think of it this way:

X-Ray Disconnect

A precision tool to specifically cut off x-ray production.

EPO: A sledgehammer to shut down everything quickly.Therefore, while an EPO button is a valuable safety feature, you still need a separate, clearly marked x-ray disconnect that cuts power specifically to the x-ray generating component. Consult with a qualified radiation safety expert or the equipment manufacturer to ensure your installation complies with all applicable regulations. Flag for review