Results 31 to 40 of about 114,782 (336)

Oscillations of the Outer Boundary of the Outer Radiation Belt During Sawtooth Oscillations [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2006
We report three sawtooth oscillation events observed at geosynchronous orbit where we find quasi-periodic (every 2-3 hours) sudden flux increases followed by slow flux decreases at the energy levels of ˜50-400 keV.
Jae-Hun Kim   +3 more
doaj   +1 more source

Progress of Radiation Belt Exploration by a Constellation of Small Satellites TGCSS/SGRB, COSPAR

open access: yesKongjian kexue xuebao
A COnstellation of Radiation BElt Survey (CORBES) program is proposed by the Sub-Group on Radiation Belt (SGRB) of TGCSS, COSPAR. To address the open qustions about the dynamics of the Earth’s radiation belt, CORBES mission would use a constellation of ...
WU Ji, YANG Xiaochao, DAI Lei, DENG Li
doaj   +1 more source

A model of the secondary radiation belt [PDF]

open access: yes, 2008
Products of nuclear reactions between primary radiation belt protons and constituents of the tenuous upper atmosphere form a collocated secondary radiation belt.
Looper, M. D.   +2 more
core   +1 more source

A statistical analysis of the Kappa-type energy spectrum distribution of radiation belt electrons observed by Van Allen Probes

open access: yesEarth and Planetary Physics
The energy spectrum of energetic electrons is a key factor representing the dynamic variations of Earth’s Van Allen radiation belts. Increased measurements have indicated that the commonly used Maxwellian and Kappa distributions are inadequate for ...
LuHuai Jiao   +5 more
doaj   +1 more source

Physical strain while wearing personal radiation protection systems in interventional radiology.

open access: yesPLoS ONE, 2022
ObjectivesMultiple studies show orthopedic health problems for medical staff due to wearing radiation protection aprons. The aim of this study was to evaluate the weight pressure on the shoulder as a marker of physical strain caused by different ...
Alexander M Koenig   +7 more
doaj   +1 more source

The Phase Space Density Evolution of Radiation Belt Electrons under the Action of Solar Wind Dynamic Pressure

open access: yesMagnetochemistry, 2023
Earth’s radiation belt and ring current are donut-shaped regions of energetic and relativistic particles, trapped by the geomagnetic field. The strengthened solar wind dynamic pressure (Pdyn) can alter the structure of the geomagnetic field, which can ...
Peng Hu   +8 more
doaj   +1 more source

On How High-Latitude Chorus Waves Tip the Balance Between Acceleration and Loss of Relativistic Electrons. [PDF]

open access: yes, 2019
Modeling and observations have shown that energy diffusion by chorus waves is an important source of acceleration of electrons to relativistic energies.
Shprits, Yuri Y, Wang, Dedong
core   +1 more source

Precipitation of Radiation Belt Electrons by EMIC Waves With Conjugated Observations of NOAA and Van Allen Satellites

open access: yesGeophysical Research Letters, 2018
In this letter, we present unique conjugated satellite observations of MeV relativistic electron precipitation caused by electromagnetic ion cyclotron (EMIC) waves. On the outer boundary of the plasmasphere, the Van Allen probe observed EMIC waves.
Zhigang Yuan   +6 more
doaj   +1 more source

The 600 keV electron injections in the Earth’s outer radiation belt: A statistical study

open access: yesEarth and Planetary Physics, 2022
Relativistic electron injections are one of the mechanisms of relativistic (≥0.5 MeV) electron enhancements in the Earth’s outer radiation belt. In this study, we present a statistical observation of 600 keV electron injections in the outer radiation ...
ChaoLing Tang   +4 more
doaj   +1 more source

The Chandra X-Ray Observatory's Radiation Environment and the AP-8/AE-8 Model

open access: yes, 2000
The Chandra X-ray Observatory (CXO) was launched on July 23, 1999 and reached its final orbit on August 7, 1999. The CXO is in a highly elliptical orbit, approximately 140,000 km x 10,000 km, and has a period of approximately 63.5 hours (~ 2.65 days). It
Butt, Yousaf M.   +3 more
core   +2 more sources

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