کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10716451 | 1027559 | 2005 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Determination of the isotopic ratio 234U/238U in liquid scintillation and environmental applications
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
ابزار دقیق
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
We describe a procedure to measure the isotopic ratio 234U/238U in liquid samples. This method combines an extractive technique, liquid scintillation counting with α/β discrimination and a fit procedure of α ADC spectra. Its main advantages are: high detection efficiencies for α emissions, energy sensitivity, rapid and easy preparation of the samples. This makes the technique suitable for environmental survey. We tested the method on a wide set of NBS standards, considering 235U enrichments up to 5% (the maximum value allowed for civil uses). Results on samples collected on field were validated by a comparison with ICP mass spectrometry.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 553, Issue 3, 21 November 2005, Pages 543-549
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 553, Issue 3, 21 November 2005, Pages 543-549
نویسندگان
D. Bianchi, P. Cortese, G. Dellacasa, I. Merlano,