An enhanced method of obtaining uniform excitation radiation for fluorescence microscopy
Bibliographic record
Abstract
A novel lightsource to provide the excitation radiation for fluorescence microscopy is presented and its performance is compared to the current de factor standard in the field: mercury short arc lamps. This novel light source is remote to the microscope, and the radiation is coupled to the microscope via a liquid lightguide or fiber optic cable using special coupling optics. We present measurements made on some common fluorescent microscopes that show the new light source provides for higher overall optical power delivered to the sample and provides more uniform illumination of the microscopes' field of view in comparison to the standard short arc lamps. Using the definition of the Koehler illumination rules it is shown that the inherent design of the remote source makes it resistant to many non-uniformities and misalignments commonly enountered with the short arc lamp sources; thereby providing for a consistent, uniform irradiance and intensity distribution of the entrance pupil to the microscope. The experimental method used to quantitatively measure the uniformity of the excitation radiation at the microscope's objective plane is also discussed and shown to be far more reliable than other techniques which rely upon fluorescent radiation from synthetic samples placed at the objective plane.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".