Parametric studies of 2K cryogenic system for superconducting e-linac at VECC, Kolkata
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
VECC is developing a 2 mA, 30/50 MeV continuous-wave superconducting electron linear accelerator (e-Linac) for the rare isotope beam facility upgrade. Presently a 10 MeV injector comprising a capture cryomodule (CCM) and an injector cryomodule (ICM) is being developed in collaboration with TRIUMF laboratory in Canada. The CCM and ICM will respectively house two single-cell and one 9-cell niobium superconducting radio-frequency (SRF) cavities operated at 1.3 GHz and 2 K. The 2K temperature is produced by expanding liquid helium from atmospheric pressure to about 30 mbar pressures through a Joule-Thomson (JT) valve. The sub atmospheric pressure is maintained by two roots pumps and a dry backing pump. A 4K-2 K test setup is being developed for testing the cryogenic parameters. A general model is formulated to construct parametric analysis comprising of different components making up the system. The numerical formulation is used for quantitative assessment of the flow requirements under different conditions of operation as well as abnormal scenarios like vacuum failure, rise of thermal shield temperature and so on. The results of the investigation provide a fundamental understanding of the system behaviour and flow requirements during operation. The paper also discusses the intricate relationships among different components of the system along with their desired performance characteristics.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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) | 0.001 | 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 it