Question:

Sequential order of the steps of radiographic film processing is
A. Fixing
B. Drying
C. Developing
D. Rinsing
E. Washing
Choose the correct answer from the options given below

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Remember the classic darkroom processing sequence: Dev-Rinse-Fix-Wash-Dry. This sequence is universally applicable to analog film processing.
  • A, B, C, D, E
  • C, D, A, E, B
  • B, A, D, C, E
  • E, D, C, B, A
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The Correct Option is B

Solution and Explanation

Step 1: Understanding the Concept:
Manual radiographic film processing converts the latent image on an exposed X-ray film into a visible, permanent analog image.
This chemical process must proceed in a strict sequential order to avoid ruining the image quality.

Step 2: Detailed Explanation:

The sequential stages of manual film processing are:
1. Developing (C): The exposed silver halide crystals on the film emulsion are chemically reduced to black metallic silver, making the image visible.
2. Rinsing (D): The film is placed in a water bath to wash away residual developer, stopping the development process and preventing contamination of the next tank.
3. Fixing (A): An acidic fixer solution removes unexposed and undeveloped silver halide crystals from the emulsion, hardening the gelatin layer and preserving the image permanently.
4. Washing (E): The film is washed in running water to remove all processing chemicals, which prevents staining and fading over time.
5. Drying (B): The water is evaporated from the film, allowing it to be handled and archived.
The correct order is C \(\rightarrow\) D \(\rightarrow\) A \(\rightarrow\) E \(\rightarrow\) B.

Step 3: Final Answer:

The correct sequence is C, D, A, E, B.
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