Alpha—a computer program for the determination of radioisotopes by least-squares resolution of the gamma-ray spectra

Schonfeld, E.

doi:10.1016/0029-554x(66)90188-1

Cited by 54 publications

(2 citation statements)

References 4 publications

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“…In this case, dead-time corrections can only be accurate if the varying dead time is dominantly caused by a radiation source. Solutions have been offered in several forms: dead time stabilization [14,[24][25][26] solves the problem at the cost of a fixed, perhaps unnecessary, dead time and resulting loss of counting efficiency [17]. However, results of the other deadtime correction models have not been forthcoming for counting losses due to the system dead time.…”

Section: Integral Dead-time Correction Modelmentioning

confidence: 99%

Dead Time in the Gamma‐Ray Spectrometry

Karabıdak¹

2017

New Insights on Gamma Rays

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A review of studies of the dead time correction on gamma-ray spectroscopy is presented. Compensate for counting losses due to system dead time is a vital step for quantitative and qualitative analysis. The gamma-ray spectroscopy system consisting of electronic devices are used for detection of radiation due to gamma rays. The dead time of the spectroscopy system is based on time limitations of these electronic devices. Firstly, a new model for determination of this electronic dead time is proposed. Secondly, two alternative methods suggested for the correction of this electronic dead-time losse.

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Section: Integral Dead-time Correction Modelmentioning

confidence: 99%

Dead Time in the Gamma‐Ray Spectrometry

Karabıdak¹

2017

New Insights on Gamma Rays

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“…Böylesi durumlarda ölü zaman kayıpları, yalnızca değişen ölü zamana bir radyasyon kaynağı baskın olursa düzeltilebilir. Çözümler birkaç değişik biçimde sunulur: Ölü zamanı sabitleme (Schönfeld, 1966;Görner ve Höhnel, 1970;Wiernik, 1971), belki de gerekli olmayan ölü zaman ve sayma etkinliği kaybı ile sonuçlanan sabit bir ölü zamanda problemi çözme gibi (Blaauw vd., 2001). Fakat sonuçlar sistem ölü zamanından kaynaklanan sayma kayıpları telafi etmekten uzaktır.…”

Section: Introductionunclassified

X ve Gama-Işını Dedektörlerinde Ölü Zaman Düzeltmesi - Kısım 1-İntegral Düzeltme

Karabıdak¹

2014

Gümüşhane Üniversitesi Fen Bilimleri Enstitüsü Dergisi

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Cyclic Activation Analysis

Hou¹

2000

Encyclopedia of Analytical Chemistry

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Cyclic activation analysis (CAA) is a method of activation analysis for elemental analysis in which a sample is irradiated, decayed, counted, then irradiated again, and this process is repeated for a number of cycles, the spectra from each counting being summed to give a final total spectrum. By this process, the counts of a short‐lived nuclide of interest are considerably increased and the analytical sensitivity of elements is significantly improved. The most commonly used CAA method is cyclic neutron activation analysis (CNAA) by irradiation with thermal, epithermal, and fast neutrons produced from a nuclear reactor, accelerator, or isotopic neutron source. A nuclear reactor can supply a very high neutron flux and is most often used for this purpose. At least 20 elements which produce short‐lived nuclides (half‐life less than 100 s) by thermal neutron bombardment, and also more than 10 elements which produce nuclides with half‐lives of 100–600 s can be determined by thermal and epithermal neutron CAA. This technique has been widely applied in biological, environmental, geological, and industrial studies, and the most often measured elements include Se, F, Pb, Hf, Sc, O, Ag, and Rh. The advantages of CAA, as compared with conventional activation analysis, include significant improvements of the detection limits, analytical precision, and accuracy for the elements by using short‐lived nuclides, short experimental time, increased number of samples per unit time, a capability for the estimation or confirmation of the half‐lives of short‐lived nuclides and determination of the degree of homogeneity of samples. However, the application of CAA is limited by the number of elements determined, because only some of the elements determined by conventional activation analysis can be determined by this method. In addition, dead time and pile‐up are serious problems in CAA and must be corrected. The principle, selection of optimum experimental conditions, detection limit, and analytical precision of CAA, and also the dead time and pile‐up corrections, are discussed in this article.

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Alpha—a computer program for the determination of radioisotopes by least-squares resolution of the gamma-ray spectra

Cited by 54 publications

References 4 publications

Dead Time in the Gamma‐Ray Spectrometry

Dead Time in the Gamma‐Ray Spectrometry

X ve Gama-Işını Dedektörlerinde Ölü Zaman Düzeltmesi - Kısım 1-İntegral Düzeltme

Cyclic Activation Analysis

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