A prototype Xe ÷ 10% CH4 microstrip detector was used to study the K-edge discontinuity in the pulse-height distribution as a function of the energy of incident X-rays. The electronics used was such that a pulse-shape rejection could be made of K-fluorescence reabsorption in the detector. The measured jump at the K-edge was (169 ± 12) eV. It was also seen that Kα- and Kβ-decay channels produce different pulse heights for the same deposited energy. We find that the difference in energy between the calibration lines of the Kβ2- and the Kβ1.3-escape peaks is (93 ± 12) eV whereas between the Kβ1.3 and the Kα-escape peaks' calibration the energy gap is (69 ± 7) eV.

Linearity discontinuities in Xe-filled X-ray microstrip detectors

ZAVATTINI, Guido;FRONTERA, Filippo;GAMBACCINI, Mauro;PARESCHI, Giovanni
1997

Abstract

A prototype Xe ÷ 10% CH4 microstrip detector was used to study the K-edge discontinuity in the pulse-height distribution as a function of the energy of incident X-rays. The electronics used was such that a pulse-shape rejection could be made of K-fluorescence reabsorption in the detector. The measured jump at the K-edge was (169 ± 12) eV. It was also seen that Kα- and Kβ-decay channels produce different pulse heights for the same deposited energy. We find that the difference in energy between the calibration lines of the Kβ2- and the Kβ1.3-escape peaks is (93 ± 12) eV whereas between the Kβ1.3 and the Kα-escape peaks' calibration the energy gap is (69 ± 7) eV.
Zavattini, Guido; Feroci, M; BUDTZ JORGENSEN, C; Christensen, F; Frontera, Filippo; Gambaccini, Mauro; ORTUNO PRADOS, F; Pareschi, Giovanni
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11392/1203362
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