Programmable Readout Electronics for Light Scintillation Detection in Liquid Xenon.
Bibliographic record
Abstract
This paper presents an investigation into the feasibility of a programmable electronic architecture specifically designed for reading out scintillations in a future iteration of a full-body version of Xemis, a three-gamma nuclear medical imaging system. This system employs liquid xenon (LXe) as the detection medium inside a time projection chamber (TPC - LXe), aiming to reduce the overall dose administered to patients. The main challenge for the readout electronics discussed here is about scaling the scintillation photon detection electronics over a 2 meter axial lenght system for clinical application, Xemis-3. The development of this programmable readout system, based on the light yield found in Xemis-2 simulations, aims replace PMTs with 16 VUV-MPPC (Multi-Pixel Photon Counters) arrays. This feasibility phase prepares for future design, with experimental validation to be done using the existing Xemis TPC test chamber. Initial simulation results indicate the effectiveness of Sigma Delta modulation readout electronics, achieving scintillation photon detection accuracy within ±1 photo. Upcoming experimental tests will evaluate this readout electronics with an FPGA at the temperature of liquid xenon.
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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) | 0.000 | 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".