Zobrazeno 1 - 10
of 41
pro vyhledávání: '"T Radoszewski"'
Autor:
A. Chyliñski, T. Radoszewski
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 369:336-339
The basic mathematical relationships, as well as experimental results, are presented for a generalized tracer method, with a multiparameter coincidence and anti-coincidence system, for absolute activity measurements of pure beta-emitters. A liquid sc
Autor:
T Terlikowska-Droździel, T Radoszewski
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 339:21-25
Radionuclidic samples were prepared ( 203 Hg, 54 Mn) for use with a number of commercial liquid scintillators but mainly with Packard Ultima Gold. The aim of the work was to determine the optimum composition to achieve high stability and counting eff
Autor:
A. Chyliński, T. Radoszewski
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 312:76-80
A two-parametric method of absolute standardization employing coincidence and anticoincidence counting, is described as applied to the measurement of 22 Na. The results indicate that this method of counting gives a lower level of overall uncertainty
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 312:100-103
This article presents some results of the investigation of radioactive counting samples prepared with the use of liquid scintillators. Liquid scintillation cocktails Atomlight (NEN) and Opti-phase HiSafe II (LKB) in standard glass vials of 20 ml volu
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 286:535-538
The 84.4 keV gamma-ray, K X-ray and conversion-electron emission probabilities of 170 Tm have been measured. Triple-to-double coincidence ratio (TDCR) and 4πβ-γ coincidence methods were used to determined the activity of 170 Tm while the emission
Publikováno v:
Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine. 56(1-2)
The new system of absolute methods of measurement of activity is presented in the paper. This system could be named a new generation of methods particularly for standardization of radionuclides with "triangular-scheme" of disintegration. The system i
Publikováno v:
Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine. 52(3)
99mTc is a widely used nuclide in nuclear medicine for diagnosis. 99mTc solutions are eluted from 99Mo/99mTc generators as sodium chloride solutions. As the 99Mo source is a fission product extracted from the reprocessing of nuclear fuel, one might e
Autor:
A. Chylinski, T. Radoszewski
Publikováno v:
International Journal of Radiation Applications and Instrumentation. Part A. Applied Radiation and Isotopes. 38:777-780
Cadmium-109-silver-109m has been standardized by the method of 4n (liquid-scintillation)e−x coincidence counting. The electron detector consisted of two phototubes viewing a cylindrical liquid-scintillation vial and photon detection was by two NaI(
Publikováno v:
The International Journal of Applied Radiation and Isotopes. 34:1175-1180
The method of activity measurements of 75 Se with the use of a two-stage coincidence and liquid scintillation counter /LS/ has been presented. The main difficulty in 75 Se counting is due to delay in gamma-ray emission of about 17 ms. The anticoincid
Autor:
A. Chyliński, T. Radoszewski
Publikováno v:
Isotopenpraxis Isotopes in Environmental and Health Studies. 17:118-121