Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Theodore F. Nichols"'
Publikováno v:
Nuclear Technology. 168:178-181
The dose from solar particle events (SPEs) poses a serious threat to the health of astronauts. A method for forecasting the rate and total severity of such events would give time for the astronauts to take actions to mitigate the effects from an SPE.
Autor:
Lawrence W. Townsend, Daniel L. Stephens, Theodore F. Nichols, Christina E. Campbell, Thomas M. Miller, Jennifer L. Hoff, E.N. Zapp, Hanna Moussa
Publikováno v:
Advances in Space Research. 38:226-231
Recent ice core analyses suggest that the Carrington event of 1859 may have been the largest solar energetic particle event in the past several hundred years. Previous analyses of potential doses to humans and electronics from such an event suggested
Publikováno v:
Radiation Protection Dosimetry. 116:232-235
When astronauts are outside Earth's protective magnetosphere, they are subject to large radiation doses resulting from solar particle events. The total dose received from a major solar particle event in deep space could cause severe radiation poisoni
Publikováno v:
Space Weather. 6
[1] It has been proposed that proton intensities on the stream-limited plateau present a minimal radiation hazard to astronauts, and hazardous intensities occur upon coronal-mass-ejection-driven shock arrival at the spacecraft. Forecasts then need on
Autor:
Thomas M. Miller, Lawrence W. Townsend, John R. Edwards, Christina E. Campbell, Hanna Moussa, Theodore F. Nichols
Publikováno v:
SAE Technical Paper Series.
Doses in critical body organs of human crews in interplanetary space from energetic solar particle events (SPE) vary widely with the size and spectral hardness of the event. In this work, we present a study of the sensitivities of calculated doses to
Publikováno v:
2005 IEEE Aerospace Conference.
Predicting large solar energetic particle (SEP) events before onset at the Sun is beyond our current forecasting capability. There is, however, a high correlation between large SEP events and fast, coronal mass ejections (CMEs). Event-triggered forec
Autor:
Christina E. Campbell, Theodore F. Nichols, Martin Williamson, Thomas M. Miller, Jennifer L. Hoff, Lawrence W. Townsend
Publikováno v:
SAE Technical Paper Series.
This paper presents a study of the sensitivities of calculated doses to the skin, ocular lens of the eye and bone marrow, for crewmembers in low Earth orbit, to variations in solar energetic particle event fluence levels and spectral hardness, spacec
Publikováno v:
SAE Technical Paper Series.
When planning space missions, radiation effects due to large solar particle events (SPEs) can become a major concern since doses can become mission threatening to both the crew and the spacecraft electronic components. As mission duration increases,