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R. Alvarez Centro de Estudios Aplicados al Desarrollo Nuclear (CEADEN) Apartado 6122 Havana Cuba

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E. Cano Centro de Estudios Aplicados al Desarrollo Nuclear (CEADEN) Apartado 6122 Havana Cuba

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J. Estévez Alvarez Centro de Estudios Aplicados al Desarrollo Nuclear (CEADEN) Apartado 6122 Havana Cuba

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E. Greaves Universidad Simón Bolívar (USB) Apartado 89000 1080A Caracas Venezuela

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Abstract  

“Cut-off” reflectors, which allow obtaining a reflected beam with almost no high energy radiation, as well as different monochromator devices that reflect a beam of monoenergetic and polarized radiation are the most widely employed artifacts to perform the excitation radiation improvement in analytical “non-expensive” TR spectrometers. The aim of this work consisted in testing several monochromator devices: a multilayer structured mirror for soft X-rays (0.7–12.5 nm), as well as different bent and flat crystals of wavelength dispersive spectrometers. The achieved instrumental detection limits for the selected monochromator device are compared with the values obtained using a Suprasil Cut-off reflector and a C-W multilayer (d∼5 nm). Several human corporal fluid samples were analyzed to compare the spectral characteristics when using the Cut-Off Reflector and the RAP flat crystal, respectively.

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Journal of Radionalytical and Nuclear Chemistry
Language English
Size A4
Year of
Foundation
1968
Volumes
per Year
1
Issues
per Year
12
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 0236-5731 (Print)
ISSN 1588-2780 (Online)