Linked Life Data

11540026

Source:http://linkedlifedata.com/resource/pubmed/id/11540026

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
10
pubmed:dateCreated
1997-6-30
pubmed:abstractText
The galactic cosmic ray (GCR) flux is modulated by solar activity: 11 and 22 year cycles are well established. Meteorites offer the possibility of studying longer cycles in the interplanetary space, due to GCR nuclear interactions. 44Ti cosmogenic isotope produced in meteorites is suitable for detecting a century scale modulation. So far reliable measurements of 44Ti in the samples are scarce, the radioisotope concentration being very low. A gamma-ray sensitive spectrometer has been set up in the underground laboratory of Monte dei Cappuccini. The system consists of a 2 kg HPGe detector inside a 28 kg NaI well. The system has a background of approximately 1 count/day (in coincidence mode) in the 44Ti region. We present here the results obtained on the Rio Negro meteorite, which fell in the year 1934.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
S
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0273-1177
pubmed:author
pubmed:issnType
Print
pubmed:volume
14
pubmed:owner
NASA
pubmed:authorsComplete
Y
pubmed:pagination
783-6
pubmed:dateRevised
2007-4-16
pubmed:meshHeading
pubmed:year
1994
pubmed:articleTitle
Cosmogenic 44Ti in meteorites and century scale solar modulation.
pubmed:affiliation
Istituto di Cosmogeofisica-CNR, Torino, Italy.
pubmed:publicationType
Journal Article