Linked Life Data

11542881

Source:http://linkedlifedata.com/resource/pubmed/id/11542881

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
12
pubmed:dateCreated
2000-5-14
pubmed:abstractText
Dosimeter data taken on the APEX (1994-1996), CRRES (1990-1991) and DMSP (1984-1987) satellites have been used to study the low altitude (down to 350 km) radiation environment. Of special concern has been the inner edge of the inner radiation belt due to its steep gradient. We have constructed dose models of the inner edge of the belt from all three spacecraft and put them into a personal computer utility, called APEXRAD, that calculates dose for user-selected orbits. The variation of dose for low altitude, circular orbits is given as a function of altitude, inclination and particle type. Dose-depth curves show that shielding greater than approximately 1/4 in Al is largely ineffectual for low altitude orbits. The contribution of outer zone electrons to low altitude dose is shown to be important only for thin shields and to have significant variation with magnetic activity and solar cycle.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
S
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0273-1177
pubmed:author
pubmed:issnType
Print
pubmed:volume
21
pubmed:owner
NASA
pubmed:authorsComplete
Y
pubmed:pagination
1651-60
pubmed:dateRevised
2007-4-16
pubmed:meshHeading
pubmed:year
1998
pubmed:articleTitle
Low altitude dose measurements from APEX, CRRES and DMSP.
pubmed:affiliation
Geophysics Directorate, Phillips Laboratory, Hanscom AFB, MA 01731, USA.
pubmed:publicationType
Journal Article, Comparative Study