<?xml version="1.0" encoding="UTF-8"?><toc><section id="foreword.nat"><title>Vorwort</title><section id="sub-amendments"><title>Änderungen</title></section><section id="sub-previous.edition"><title>Frühere Ausgaben</title></section></section><section id="sub-1"><label>1</label><title>Anwendungsbereich</title></section><section id="sub-2"><label>2</label><title>Normative Verweisungen</title></section><section id="sub-3"><label>3</label><title> und ihre Symbole</title><section id="sub-3.1"><label>3.1</label><title>Nuklid</title><section id="sub-3.1.1"><label>3.1.1</label><title>Radionuklid</title></section><section id="sub-3.1.2"><label>3.1.2</label><title>Isomere</title></section><section id="sub-3.1.3"><label>3.1.3</label><title>Isotop</title></section><section id="sub-3.1.4"><label>3.1.4</label><title>Radioisotop</title></section></section></section><section id="sub-4"><label>4</label><title> und </title><section id="sub-4.1"><label>4.1</label><title>Kernprozess</title><section id="sub-4.1.1"><label>4.1.1</label><title>Kernumwandlung</title></section><section id="sub-4.1.2"><label>4.1.2</label><title>Kernreaktion</title></section><section id="sub-4.1.3"><label>4.1.3</label><title>radioaktive Umwandlung</title><section id="sub-4.1.3.1"><label>4.1.3.1</label><title>Alphazerfall</title></section><section id="sub-4.1.3.2"><label>4.1.3.2</label><title>Betazerfall</title></section><section id="sub-4.1.3.3"><label>4.1.3.3</label><title>Elektroneneinfang</title></section><section id="sub-4.1.3.4"><label>4.1.3.4</label><title>Spontanspaltung</title></section></section><section id="sub-4.1.4"><label>4.1.4</label><title>isomerer Übergang</title></section></section><section id="sub-4.2"><label>4.2</label><title>Radioaktivität</title></section></section><section id="sub-6"><label>6</label><title>Ionisierende Strahlung</title><section id="sub-6.1"><label>6.1</label><title>Kernstrahlung</title></section><section id="sub-6.2"><label>6.2</label><title>Korpuskularstrahlung</title></section><section id="sub-6.3"><label>6.3</label><title>Alphastrahlung</title></section><section id="sub-6.4"><label>6.4</label><title>Betastrahlung</title></section><section id="sub-6.5"><label>6.5</label><title>Konversionselektron</title></section><section id="sub-6.6"><label>6.6</label><title>Neutronenstrahlung</title></section><section id="sub-6.7"><label>6.7</label><title>Auger-Elektron</title></section><section id="sub-6.8"><label>6.8</label><title>Photonenstrahlung</title></section><section id="sub-6.9"><label>6.9</label><title>charakteristische Röntgenstrahlung</title></section><section id="sub-6.10"><label>6.10</label><title>Gammastrahlung</title></section><section id="sub-6.11"><label>6.11</label><title>Vernichtungsstrahlung</title></section><section id="sub-6.12"><label>6.12</label><title>Bremsstrahlung</title></section></section><section id="sub-7"><label>7</label><title>,  und </title><section id="sub-7.1"><label>7.1</label><title>Aktivität</title><section id="sub-7.1.1"><label>7.1.1</label><title>Quellstärke</title></section><section id="sub-7.1.2"><label>7.1.2</label><title>Emissionsrate</title></section></section><section id="sub-7.2"><label>7.2</label><title>spezifische Aktivität</title></section><section id="sub-7.3"><label>7.3</label><title>Aktivitätskonzentration</title></section></section><section id="sub-8"><label>8</label><title>Charakteristische Konstanten von </title><section id="sub-8.1"><label>8.1</label><title>Zerfallskonstante</title></section><section id="sub-8.2"><label>8.2</label><title>mittlere Lebensdauer</title></section><section id="sub-8.3"><label>8.3</label><title>Halbwertszeit</title></section><section id="sub-8.4"><label>8.4</label><title>Konversionskoeffizient</title></section><section id="sub-8.5"><label>8.5</label><title>Emissionswahrscheinlichkeit</title></section></section><section id="sub-9"><label>9</label><title>Zerfallsreihe</title><section id="sub-9.1"><label>9.1</label><title>radioaktive Zerfallsreihe</title></section><section id="sub-9.2"><label>9.2</label><title>radioaktives Gleichgewicht</title></section></section><section id="sub-a"><label>Anhang A</label><title>Erläuterungen zur Schreibweise von  (informativ)</title></section><section id="sub-informative.nat.1"><title>Stichwortverzeichnis (informativ)</title></section><section id="sub-bibliography.nat"><title>Literaturhinweise</title></section></toc>