Linked Life Data

15082047

Source:http://linkedlifedata.com/resource/pubmed/id/15082047

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
2004-4-14
pubmed:abstractText
A nonlinear function in combination with the method of mixing activity-calibrated and uncalibrated gamma-ray sources is applied for fitting the experimental peak efficiency of HPGe spectrometers in the 59-2754 keV energy range. In addition, a step function was developed for fitting the gamma-ray background under the peak. Calibrated 241Am, 133Ba, 137Cs, 152Eu, 60Co and 88Y sources, as well as one 24Na source (treated as uncalibrated) were used for obtaining the experimental peak efficiency curve. The results were compared to the conventional linear polynomial fitting. From the fitted parameters, the 24Na activity was determined and compared with the result obtained from absolute measurements in a 4pibeta-gamma coincidence system.
pubmed:language
eng
pubmed:journal
pubmed:status
PubMed-not-MEDLINE
pubmed:month
May
pubmed:issn
0969-8043
pubmed:author
pubmed:issnType
Print
pubmed:volume
60
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
683-7
pubmed:year
2004
pubmed:articleTitle
Combination of nonlinear function and mixing method for fitting HPGe efficiency curve in the 59-2754 kev energy range.
pubmed:affiliation
Instituto de Pesquisas Energeticas e Nucleares (IPEN-CNEN/SP), Centro do Reator de Pesquisas, CP 11049, Pinheiros CEP, São Paulo, SP 05422-970, Brazil. msdias@net.ipen.br
pubmed:publicationType
Journal Article