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Record W2898702711 · doi:10.7939/r3259m

High Energy Proton Telescope

2012· article· en· W2898702711 on OpenAlexaboutno aff
F. Sadiq

Bibliographic record

VenueUniversity of Alberta Library · 2012
Typearticle
Languageen
FieldPhysics and Astronomy
TopicDark Matter and Cosmic Phenomena
Canadian institutionsnot available
Fundersnot available
KeywordsTelescopeProtonAstronomyEnergy (signal processing)PhysicsNuclear physics

Abstract

fetched live from OpenAlex

The Earth's magnetosphere is composed of energetic electrons and protons. It is important to verify average populations and energy distributions of these particles and quantify the effects of geomagnetic events on their populations and energy distributions. Abrupt changes have been observed in the energy and distribution of protons during magnetic storms creating a large population of very energetic (> 1 MeV) protons in the slot region of the Earth's Van Allen belts. A few attempts have been made in the past to investigate the sources and loss mechanism of these energetic particles. We have carried out detailed modelling of a High Energy Proton Telescope (HEPT) proposed as a scientific instrument for the proposed Canadian Outer Radiation Belt Injection, Transport, and Loss Satellite (ORBITALS) mission. HEPT is capable of measuring the energetic proton and electron distributions in the energy range of 3-120 MeV for protons and 3-20 MeV for electrons. The detector consists of two heads, one to cover the range of 3 to 26 MeV protons and the second to cover the range of 26 to 120 MeV protons with total view angles of $18^{o}$ and $36^{o}$, respectively. The detector efficiency and geometric factors were calculated numerically using the GEANT4 high energy physics modelling code. In addition, model calculations were carried out to compare the model instrument performance with experimental measurements carried out at the TRIUMF accelerator facility giving good agreement. The results obtained indicate that the detector design would be suitable for a satellite mission to study energetic particle distributions during energetic solar particle events.

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.

How this classification was reachedexpand

Full frame distilled prediction

Teacher imitation

Not 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.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesInsufficient payload (model declined to judge)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Not applicable · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.738
Threshold uncertainty score0.999

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.001
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0020.000

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.

Opus teacher head0.004
GPT teacher head0.156
Teacher spread0.152 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one teacher head, not a consensus.

Study designNot applicable
Domainnot available
GenreEmpirical

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".

Quick stats

Citations0
Published2012
Admission routes1
Has abstractyes

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