Life Projection of Far-UVC KrCl Excilamp with 222nm Peak Wavelength
Bibliographic record
Abstract
The KrCl Excimer lamps (Excilamps) with 222nm peak wavelength have been developed for 20 years, however, there are few researches found regarding on their life projection. To insure the enough radiation for the important inactivating effectiveness during the service life, this work focuses on irradiance maintenance of KrCl Excilamps at different tube wall temperatures. In general, the activation energy of the Arrhenius equation modelling the lifetime for electronic products suffering from temperature stress below 500K can be considered as temperature-independent. However, due to the unique configuration of KrCl Excilamps without the electrodes inside their tubes and the chemical reaction of Chlorine with the quartz tube wall, their degradation model might need to be verified. In our study, the irradiance of the KrCl Excilamps at tube temperatures around 80, 90 and 100°C for 1000 hours was investigated to find the associated rate coefficients using the exponential and the logarithmic least square curve-fitting. For the better accuracy of life projection, the power-law and the linear relations with temperature are assumed to obtain the temperature-dependent Arrhenius parameters: the pre-exponential factor and the activation energy of the Arrhenius Equation. It is found that the life projection based on the irradiance maintenance can be obtained with a better agreement by the temperature-dependent models using the logarithmic least square curve-fitting for the KrCl Excilamps with 222nm peak wavelength.
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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 | 0.000 | 0.000 |
| 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 | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 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".