Positron-Electron Pair Creation Near Threshold

Positron-electron pair creation near the threshold energy is extremely difficult to investigate by both experiments and theory. First test experiments were performed at the ILL to determine the cross sections for positron-electron pair creation near threshold using prompt g-rays from different targe...

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Hauptverfasser:	Frahm, Ronald, Lutzenkirchen-Hecht, Dirk, Jentschel, Michael, Urban, Waldemar, Krempel, Jochen, Schreckenbach, Klaus
Format:	Tagungsbericht
Sprache:	eng
Schlagworte:	CAPTURE CROSS SECTIONS ELECTRON-POSITRON INTERACTIONS ELECTRONS GAMMA RADIATION GAMMA SPECTROSCOPY GE SEMICONDUCTOR DETECTORS NEUTRON REACTIONS NUCLEAR PHYSICS AND RADIATION PHYSICS PAIR PRODUCTION POSITRONS RADIATION SOURCES THRESHOLD ENERGY
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creator	Frahm, Ronald Lutzenkirchen-Hecht, Dirk Jentschel, Michael Urban, Waldemar Krempel, Jochen Schreckenbach, Klaus
description	Positron-electron pair creation near the threshold energy is extremely difficult to investigate by both experiments and theory. First test experiments were performed at the ILL to determine the cross sections for positron-electron pair creation near threshold using prompt g-rays from different targets after neutron capture and conventional radioactive sources. Pair creation was studied in a Ge detector, which simultaneously acted as sample and detector. First results are presented which show a significant deviation from theoretical values near threshold.
doi_str_mv	10.1063/1.3087084
format	Conference Proceeding
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subjects	CAPTURE CROSS SECTIONS ELECTRON-POSITRON INTERACTIONS ELECTRONS GAMMA RADIATION GAMMA SPECTROSCOPY GE SEMICONDUCTOR DETECTORS NEUTRON REACTIONS NUCLEAR PHYSICS AND RADIATION PHYSICS PAIR PRODUCTION POSITRONS RADIATION SOURCES THRESHOLD ENERGY
title	Positron-Electron Pair Creation Near Threshold
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