Artículo
Abstract:
We analyze the interdependence among measurements of X-ray spectra in the energy range 4-60 keV by a multi-channel instrument. Two methods of estimating it are described. One gives the error magnification expected in spectrum deconvolution resulting from the covariance matrix of the products of filter transmission times detector sensitivity, evaluated over the whole accessible range of photon energies. The other is an extension of the former evaluating the covariance matrices over consecutive energy bands. This extension allows one to analyze channel dependence for each band, thus improving the prospects of filter and detector selection in the design of an experiment. We present tables showing the expected behaviors of several combinations of filters (homogeneous, heterogeneous, doublets, Ross) and detectors (flat, film, diodes). The advantages of heterogeneous filters are emphasized. © 1986.
Registro:
| Documento: | Artículo |
| Título: | The problem of channel dependence in foil-absorption X-ray spectroscopy |
| Autor: | Rodriguez-Trelles, F.; Caputo, M.C. |
| Filiación: | Programa de Investigaciones Teoricas y Experimentales en Fisica del Plasma (CONICET-UBA), Facultad de Ciencias Exactas y Naturales, Pabellon I, Ciudad Universitaria, 1428 Buenos Aires, Argentina |
| Palabras clave: | X-RAYS - Spectrum Analysis; COVARIANCE MATRIX; ERROR MAGNIFICATION; SPECTRUM DECONVOLUTION; SPECTROSCOPY, X-RAY |
| Año: | 1986 |
| Volumen: | 242 |
| Número: | 3 |
| Página de inicio: | 577 |
| Página de fin: | 581 |
| DOI: | http://dx.doi.org/10.1016/0168-9002(86)90470-5 |
| Título revista: | Nuclear Inst. and Methods in Physics Research, A |
| Título revista abreviado: | Nucl Instrum Methods Phys Res Sect A |
| ISSN: | 01689002 |
| CODEN: | NIMAE |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01689002_v242_n3_p577_RodriguezTrelles |
Referencias:
- Mulser, (1973) Phys. Rep. Phys. Lett., 3 C, p. 187
- Ross, A NEW METHOD OF SPECTROSCOPY FOR FAINT X-RADIATIONS (1928) Journal of the Optical Society of America, 16, p. 433
- Donaldson, (1978) Plasma Phys., 20, p. 1279
- Jahoda, (1960) Phys. Rev., 119, p. 843
- Johnson, (1974) J. Appl. Phys., 45, p. 1147
- Rodríguez-Trelles, Caputo, X-ray film spectroscopy (1982) Nuclear Instruments and Methods in Physics Research, 193, p. 115
- Tikhonov, (1963) Dokl. Akad. Nauk SSSR, 49, p. 153
- Twomey, (1974) Appl. Optics, 13, p. 942
- Veigele, (1973) Atomic Data, 5, p. 51
- Dozier, (1976) J. Appl. Phys., 47, p. 3732
- Deepak, (1977) Inversion Methods in Atmospheric Remote Sounding, , Academic Press, New York
Citas:
---------- APA ----------
Rodriguez-Trelles, F. & Caputo, M.C. (1986) . The problem of channel dependence in foil-absorption X-ray spectroscopy. Nuclear Inst. and Methods in Physics Research, A, 242(3), 577-581.http://dx.doi.org/10.1016/0168-9002(86)90470-5
---------- CHICAGO ----------
Rodriguez-Trelles, F., Caputo, M.C. "The problem of channel dependence in foil-absorption X-ray spectroscopy" . Nuclear Inst. and Methods in Physics Research, A 242, no. 3 (1986) : 577-581.http://dx.doi.org/10.1016/0168-9002(86)90470-5
---------- MLA ----------
Rodriguez-Trelles, F., Caputo, M.C. "The problem of channel dependence in foil-absorption X-ray spectroscopy" . Nuclear Inst. and Methods in Physics Research, A, vol. 242, no. 3, 1986, pp. 577-581.http://dx.doi.org/10.1016/0168-9002(86)90470-5
---------- VANCOUVER ----------
Rodriguez-Trelles, F., Caputo, M.C. The problem of channel dependence in foil-absorption X-ray spectroscopy. Nucl Instrum Methods Phys Res Sect A. 1986;242(3):577-581.http://dx.doi.org/10.1016/0168-9002(86)90470-5
