1,721,359 research outputs found
Calculated Energy Response of Some RTL Detectors with Multi-Element Filters
No full textOne of the inconvenient features of thermoluminescence detectors is the energy dependence of their response. A calculational method is presented which enables filters to be selected for most thermoluminescent detectors to achieve any described response over the energy range 30 keV to 1.5 MeV
Evaluation of multi-element filters with partial surface shielding for some TL detectors
No full textUso di filtri a molti elementi per rivelatori a termoluminescenza: valutazioni teoriche e misure sperimentali
No full textSi presentano alcuni risultati sperimentali che verificano previsioni teoriche sul comportamento di filtri a molti elementi, per rendere indipendente dall'energia la risposta di dosimetri a termoluminescenza: l'accordo tra misure e previsioni e' buono, per energie da qualche decina di keV a oltre 1 MeV
Isothermal read-out for thermoluminescence dosimetry with CaSO4:Dy (TLD-900)
No full textExperiments on the isothermal decay of the therraoluminescence associated with the main dosimetry peak of CaS04:Dy (TLD-900) dosemeters are described in this paper. The results on the kinetics parameters s (the frequency factor) and b (the order of the kinetics) and a new time dependence study on accidental high dose occurrence are also reported
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Energy response of TL detectors with multielement filters for radioprotection dosimetry
No full textIn this paper we present a comparison between calculated and experimental data on the energy response of multifilteredTL dosemeters
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
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