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Abstract:

An experiment made with a baloon-borne large volume (16×16×24 cm3) omnidirectional plastic scintillator sensitive to high-energy γ-radiation is described. Two flights were carried out on 25 November, 1973 and 24 February, 1978 at high geomagnetic cut-off rigidities. For an omnidirectional detector and for energies greater than several MeV, most of the detected photons are secondary γ-rays produced through interactions of the charged cosmic rays with the atmosphere. To unfold the observed pulse height spectrum and obtain the incident γ-ray spectrum, the detector response function is calculated numerically. By using this response function a differential flux d J/d E=(0.33±0.1)E-1.2±0.2 photons cm-2 s-1 MeV-1 averaged over all zenith angles, is estimated for the atmospheric γ-radiation, at 5 g cm-2, in the 10-100 MeV energy range. This result is compared with other observations made with different types of detectors and at different geomagnetic latitudes. © 1992 Kluwer Academic Publishers.

Registro:

Documento: Artículo
Título:Atmospheric gamma-ray spectrum between 10 and 100 MeV
Autor:Azcárate, I.N.; Ghielmetti, H.S.; Mugherli, V.J.
Filiación:Instituto Argentino de Radioastronomía, Villa Elisa, Provincia de Buenos Aires, Argentina
Instituto de Astronomía y Física del Espacio, Buenos Aires, Argentina
Año:1992
Volumen:190
Número:2
Página de inicio:317
Página de fin:329
DOI: http://dx.doi.org/10.1007/BF00644857
Título revista:Astrophysics and Space Science
Título revista abreviado:Astrophys Space Sci
ISSN:0004640X
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0004640X_v190_n2_p317_Azcarate

Referencias:

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Citas:

---------- APA ----------
Azcárate, I.N., Ghielmetti, H.S. & Mugherli, V.J. (1992) . Atmospheric gamma-ray spectrum between 10 and 100 MeV. Astrophysics and Space Science, 190(2), 317-329.
http://dx.doi.org/10.1007/BF00644857
---------- CHICAGO ----------
Azcárate, I.N., Ghielmetti, H.S., Mugherli, V.J. "Atmospheric gamma-ray spectrum between 10 and 100 MeV" . Astrophysics and Space Science 190, no. 2 (1992) : 317-329.
http://dx.doi.org/10.1007/BF00644857
---------- MLA ----------
Azcárate, I.N., Ghielmetti, H.S., Mugherli, V.J. "Atmospheric gamma-ray spectrum between 10 and 100 MeV" . Astrophysics and Space Science, vol. 190, no. 2, 1992, pp. 317-329.
http://dx.doi.org/10.1007/BF00644857
---------- VANCOUVER ----------
Azcárate, I.N., Ghielmetti, H.S., Mugherli, V.J. Atmospheric gamma-ray spectrum between 10 and 100 MeV. Astrophys Space Sci. 1992;190(2):317-329.
http://dx.doi.org/10.1007/BF00644857