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View article: Exploring the Validation Results of the Advanced Solar Particle Events Casting System (ASPECS)
Exploring the Validation Results of the Advanced Solar Particle Events Casting System (ASPECS) Open
Solar Energetic Particle (SEP) events can adversely affect space and ground‐based systems. Space weather effects associated with SEP events can impact communication and navigation systems, spacecraft electronics and operations, space power…
View article: Using Type III radio bursts as evidence of particle escape from the Sun for enhancing solar proton forecasting capabilities
Using Type III radio bursts as evidence of particle escape from the Sun for enhancing solar proton forecasting capabilities Open
Reliable forecasts with sufficient advance warning of Solar Energetic Particle (SEP) events (with energies ranging from tens of keV to a few GeV and lasting for a few hours to several days), are vital for swift mitigation of threats to mod…
View article: Real-time dose prediction for Artemis missions
Real-time dose prediction for Artemis missions Open
As large solar energetic particle (SEP) events can add significant radiation dose to astronauts in a short period of time and even induce acute clinical responses during missions, they present a concern for manned space flight operation. T…
View article: Space radiation measurements during the Artemis I lunar mission
Space radiation measurements during the Artemis I lunar mission Open
Space radiation is a notable hazard for long-duration human spaceflight 1 . Associated risks include cancer, cataracts, degenerative diseases 2 and tissue reactions from large, acute exposures 3 . Space radiation originates from diverse so…
View article: Improving the REleASE solar proton forecasting capabilities with evidence of particle escape from the Sun: HESPERIA REleASE + 
Improving the REleASE solar proton forecasting capabilities with evidence of particle escape from the Sun: HESPERIA REleASE +  Open
Providing reliable forecasts of Solar Energetic Particle (SEP) events is mandatory for human spaceflight beyond low-Earth orbit, especially outside the Earth's magnetosphere. High-energy SEPs are tracked because they penetrate deeper into …
View article: The importance of time-resolved personal Dosimetry in space: The ISS Crew Active Dosimeter
The importance of time-resolved personal Dosimetry in space: The ISS Crew Active Dosimeter Open
Monitoring space radiation is of vital importance for risk reduction strategies in human space exploration. Radiation protection programs on Earth and in space rely on personal and area radiation monitoring instruments. Crew worn radiation…
View article: Calibration of the GOES 6–16 high-energy proton detectors based on modelling of ground level enhancement energy spectra
Calibration of the GOES 6–16 high-energy proton detectors based on modelling of ground level enhancement energy spectra Open
For several decades, the Geostationary Operational Environmental Satellites (GOES) series have provided both real-time and historical data for radiation exposure estimation and solar proton radiation environment modelling. Recently, severa…
View article: Predicting chromosome damage in astronauts participating in international space station missions
Predicting chromosome damage in astronauts participating in international space station missions Open
Space radiation consists of energetic protons and other heavier ions. During the International Space Station program, chromosome aberrations in lymphocytes of astronauts have been analyzed to estimate received biological doses of space rad…
View article: ARRT Development for the Upcoming Human Exploration Missions
ARRT Development for the Upcoming Human Exploration Missions Open
The health risks of space radiation present big challenges to space exploration, with the possibility of large Energetic Solar Particle Events (ESPEs) inducing Acute Radiation Sickness (ARS) during upcoming Artemis missions. An operational…
View article: Acute Radiation Risks Tool (ARRT) Development for the Upcoming Human Exploration Missions
Acute Radiation Risks Tool (ARRT) Development for the Upcoming Human Exploration Missions Open
The health risks of space radiation present big challenges to space exploration, with the possibility of large Energetic Solar Particle Events (ESPEs) inducing Acute Radiation Sickness (ARS) during upcoming Artemis missions. An operational…
View article: Machine Learning in Heliophysics and Space Weather Forecasting: A White Paper of Findings and Recommendations
Machine Learning in Heliophysics and Space Weather Forecasting: A White Paper of Findings and Recommendations Open
The authors of this white paper met on 16-17 January 2020 at the New Jersey Institute of Technology, Newark, NJ, for a 2-day workshop that brought together a group of heliophysicists, data providers, expert modelers, and computer/data scie…
View article: ISEP: A Joint SRAG/CCMC Collaboration to Improve Mitigation of Space Weather Effects on Crew Health in the Exo-LEO Era
ISEP: A Joint SRAG/CCMC Collaboration to Improve Mitigation of Space Weather Effects on Crew Health in the Exo-LEO Era Open
The Space Radiation Analysis Group (SRAG) at Johnson Space Center (JSC) is tasked with monitoring changes to space weather and mitigating any resultant impacts to crew health and safety. As human spaceflight goals extend from Low-Earth Orb…
View article: Very high energy calibration of silicon Timepix detectors
Very high energy calibration of silicon Timepix detectors Open
We investigate energy measurements in Timepix hybrid detectors in hole collection mode above pixel input energy depositions of about 2.2 MeV or 600,000 electron/hole pairs in Silicon. Measurement of the detector response well above this re…
View article: The Solar Particle Event on 10 September 2017 as observed onboard the International Space Station (ISS)
The Solar Particle Event on 10 September 2017 as observed onboard the International Space Station (ISS) Open
The nominal radiation environment in low Earth orbit, especially for the International Space Station (ISS), is dominated by two sources. The first is galactic cosmic radiation, which is modulated by the interplanetary and the Earth's magne…
View article: Comparing Trash Disposal to Use as Radiation Shielding for a Mars Transit Vehicle
Comparing Trash Disposal to Use as Radiation Shielding for a Mars Transit Vehicle Open
Michael Ewert, NASA Johnson Space Center (JSC), USA
View article: Comparison of novel active semiconductor pixel detectorwith passive radiation detectors during the NASA Orion Exploration Flight Test 1 (EFT-1)
Comparison of novel active semiconductor pixel detectorwith passive radiation detectors during the NASA Orion Exploration Flight Test 1 (EFT-1) Open
The first unmanned flight of the Orion Multipurpose Crew Vehicle (MPCV) was successfully completed on December 5, 2014. The total mission duration was 4.5 h, and the EFT-1 trajectory consisted of a high apogee (∼6000 km, 28.6° inclination)…
View article: Getting to the Heart of Cardiovascular Risk Assessment in Astronauts for Exploration Class Missions
Getting to the Heart of Cardiovascular Risk Assessment in Astronauts for Exploration Class Missions Open
Since the beginning of manned spaceflight, NASA has recognized the potential risk of cardiovascular decrements due to stressors in the space environment. Of particular concern is the effect of space radiation on cardiovascular disease sinc…
View article: Measuring space radiation shielding effectiveness
Measuring space radiation shielding effectiveness Open
Passive radiation shielding is one strategy to mitigate the problem of space radiation exposure. While space vehicles are constructed largely of aluminum, polyethylene has been demonstrated to have superior shielding characteristics for bo…
View article: DOSIS & DOSIS 3D: radiation measurements with the DOSTEL instruments onboard the Columbus Laboratory of the ISS in the years 2009–2016
DOSIS & DOSIS 3D: radiation measurements with the DOSTEL instruments onboard the Columbus Laboratory of the ISS in the years 2009–2016 Open
The natural radiation environment in Low Earth Orbit (LEO) differs significantly in composition and energy from that found on Earth. The space radiation field consists of high energetic protons and heavier ions from Galactic Cosmic Radiati…
View article: Risky Business: The Science and Art of Radiation Risk Communication in the High Risk Context of Space Travel
Risky Business: The Science and Art of Radiation Risk Communication in the High Risk Context of Space Travel Open
Successfully communicating the complex risks associated with radiation exposure is a difficult undertaking; communicating those risks within the high-risk context of space travel is uniquely challenging. Since the potential risks of space …
View article: Segmental interpolating spectra for solar particle events and in situ validation
Segmental interpolating spectra for solar particle events and in situ validation Open
It is a delicate task to accurately assess the impact of solar particle events (SPEs) on future long-duration human exploration missions. In the past, researchers have used several functional forms to fit satellite data for radiation expos…
View article: First Results from the ISS-RAD Charged Particle Detector
First Results from the ISS-RAD Charged Particle Detector Open
The Charged Particle Detector (CPD) subsystem of the ISS-RAD detector has been making measurements of high-energy charged and neutral particles since the unit was deployed on Feb. 1, 2016. The CPD is nearly identical to the MSL-RAD instrum…
View article: DOSIS & DOSIS 3D: long-term dose monitoring onboard the Columbus Laboratory of the International Space Station (ISS)
DOSIS & DOSIS 3D: long-term dose monitoring onboard the Columbus Laboratory of the International Space Station (ISS) Open
The radiation environment encountered in space differs in nature from that on Earth, consisting mostly of highly energetic ions
\nfrom protons up to iron, resulting in radiation levels far exceeding the ones present on Earth for occupation…