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Application of two-bath development processing to transmission electron films and plates
1Los Alamos National Laboratory, New Mexico 87545.
Journal of Electron Microscopy Technique
|September 1, 1987
Summary
A novel two-bath development process can reduce contrast and density in transmission electron microscopy images. This technique preserves fine details, overcoming traditional limitations in materials research imaging.
Area of Science:
- Materials Science
- Microscopy Imaging
Background:
- Transmission electron microscopy (TEM) often faces challenges with high contrast and density in photographic negatives.
- These issues can obscure fine details crucial for materials research analysis.
Purpose of the Study:
- To introduce a modified photographic development process for TEM.
- To demonstrate a method for compressing contrast and limiting density in negatives without losing detail.
Main Methods:
- Utilizing a two-bath development process, separating the developing agent and accelerator.
- Employing a commercially available developer, Diafine, as a case study.
Main Results:
- The two-bath development process effectively compresses the contrast range of the negative.
- Excessive density is limited, while recorded detail is preserved.
- Achieves desirable imaging effects previously considered inherent limitations.
Conclusions:
- A split-bath development process offers a viable solution to common TEM imaging problems.
- This method enhances the quality of TEM negatives for materials research.
- Alternative two-bath developers can be formulated, though Diafine was the only off-the-shelf option at the time of writing.