Linked Life Data

15607473

Source:http://linkedlifedata.com/resource/pubmed/id/15607473

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2004-12-20
pubmed:abstractText
The electron paramagnetic resonance(EPR) technique was used to study the paramagnetic centers induced by ionizing radiation in thermoluminescent CaSO4:Dy. Two different radiation induced centers, detectable in the (1-10(7)) Gy dose range and attributed to (SO3)- and Ca-vacancy center, (VCa)2-, respectively, can be used for dosimetry purpose. The (VCa)2- center is detectable only upon sample annealing at temperatures higher than about 180 degrees C. A reliable dose assessment can be performed in the (1-10(7)) Gy dose range and likely over 10(7) Gy. The sensitivity decreases with thermal cycles, while the yield of both centers increases with accumulated dose (pumping effect), at a greater extent for (VCa)2- center. (VCa)2- center is stable with time, while (SO3)- center shows a dose-dependent fading. Among the applications that can be imaged for this dosimeter, very high dose assessment capability is of particular importance.
pubmed:language
eng
pubmed:journal
pubmed:status
PubMed-not-MEDLINE
pubmed:month
Feb
pubmed:issn
0969-8043
pubmed:author
pubmed:issnType
Print
pubmed:volume
62
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
349-52
pubmed:year
2005
pubmed:articleTitle
Features of EPR dosimetry with CaSO4:Dy phosphor.
pubmed:affiliation
Istituto Superiore di Sanità Viale Regina Elena 299, 00161 Rome, Italy. bortolin@iss.it
pubmed:publicationType
Journal Article