BARREL: Bremsstrahlung X-ray Spectra from Balloon Campaigns, 0.05 s Resolution

Six channels of fast time resolution, 50 ms, Bremsstrahlung X-ray spectra detected with a NaI Scintillator, covering an energy range from 0 MeV to 1.5 MeV. The BARREL Mission was a multiple-balloon investigation designed to study electron losses from Earth's Radiation Belts, providing measurements to augment the Van Allen Probes mission. Over 50 stratospheric balloons were launched across four campaigns from Antarctica and Sweden between 2013 and 2016.

Use Cases

• Analyze relativistic electron precipitation events based on the six-channel fast time resolution X-ray spectra.
• Study spatial and temporal variations in radiation belt losses based on the multi-balloon array data.
• Correlate balloon-based X-ray measurements with in-situ satellite data from the Van Allen Probes mission.
• Characterize the spatial scale of precipitation at relativistic energies based on the multi-station campaign design.

Strengths

• Provides 50 ms time resolution across six spectral channels, offering detailed temporal analysis.
• Data collected from over 50 balloon flights across four campaigns, providing substantial observational coverage.
• Campaigns were coordinated with the Van Allen Probes mission and other ground/space instruments for correlative studies.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment for large-scale ML tasks.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Measured by X-ray spectrometers and DC magnetometers carried on stratospheric balloons.

Time Range

Campaigns conducted in 2013, 2014, 2015, and 2016.

Freshness

Last updated 2026-03-13 12:12:04.854387; freshness should be verified.

Geography

Launches from Halley Bay and SANAE IV base in Antarctica, and the Esrange Space Center in Kiruna, Sweden.