What is the total developer immersion time for a 90-second processor?

In a 90-second processor, the total developer immersion time refers to the amount of time that the film is actually submerged in the developer solution, which is a critical factor in achieving proper development of the radiographic film. For processors, this time is typically a specific fraction of the total processing time.

The immersion time is generally calculated based on the overall processing time and is often set according to the requirements for optimal development. For a 90-second processor, standard practice often sets developer immersion at approximately 20 seconds. This time ensures adequate development of the film while balancing the rate of processing and the need for quality output.

Therefore, this value of 20 seconds accurately reflects the developer immersion time in this context, ensuring that the film is developed efficiently and effectively while keeping the overall processing within the specified time range.