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class="firstHeading mw-first-heading"><span class="mw-page-title-main">Alfastraling</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Ga naar een artikel in een andere taal. Beschikbaar in 19 talen" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-19" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">19 talen</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/Alfastr%C3%A5ling" title="Alfastråling – Deens" lang="da" hreflang="da" data-title="Alfastråling" data-language-autonym="Dansk" data-language-local-name="Deens" class="interlanguage-link-target"><span>Dansk</span></a></li><li class="interlanguage-link interwiki-de badge-Q17437798 badge-goodarticle mw-list-item" title="goed artikel"><a href="https://de.wikipedia.org/wiki/Alphastrahlung" title="Alphastrahlung – Duits" lang="de" hreflang="de" data-title="Alphastrahlung" data-language-autonym="Deutsch" data-language-local-name="Duits" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-en badge-Q70894304 mw-list-item" title=""><a href="https://en.wikipedia.org/wiki/Alpha_radiation" title="Alpha radiation – Engels" lang="en" hreflang="en" data-title="Alpha radiation" data-language-autonym="English" data-language-local-name="Engels" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-eo mw-list-item"><a href="https://eo.wikipedia.org/wiki/Alfa-radiado" title="Alfa-radiado – Esperanto" lang="eo" hreflang="eo" data-title="Alfa-radiado" data-language-autonym="Esperanto" data-language-local-name="Esperanto" class="interlanguage-link-target"><span>Esperanto</span></a></li><li class="interlanguage-link interwiki-es badge-Q70894304 mw-list-item" title=""><a href="https://es.wikipedia.org/wiki/Radiaci%C3%B3n_alfa" title="Radiación alfa – Spaans" lang="es" hreflang="es" data-title="Radiación alfa" data-language-autonym="Español" data-language-local-name="Spaans" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-eu badge-Q70894304 mw-list-item" title=""><a href="https://eu.wikipedia.org/wiki/Alfa_izpi" title="Alfa izpi – Baskisch" lang="eu" hreflang="eu" data-title="Alfa izpi" data-language-autonym="Euskara" data-language-local-name="Baskisch" class="interlanguage-link-target"><span>Euskara</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/Alfas%C3%A4teily" title="Alfasäteily – Fins" lang="fi" hreflang="fi" data-title="Alfasäteily" data-language-autonym="Suomi" data-language-local-name="Fins" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-fr badge-Q70894304 mw-list-item" title=""><a href="https://fr.wikipedia.org/wiki/Rayonnement_alpha" title="Rayonnement alpha – Frans" lang="fr" hreflang="fr" data-title="Rayonnement alpha" data-language-autonym="Français" data-language-local-name="Frans" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-hu badge-Q70894304 mw-list-item" title=""><a href="https://hu.wikipedia.org/wiki/Alfa-sug%C3%A1rz%C3%A1s" title="Alfa-sugárzás – Hongaars" lang="hu" hreflang="hu" data-title="Alfa-sugárzás" data-language-autonym="Magyar" data-language-local-name="Hongaars" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-it badge-Q70894304 mw-list-item" title=""><a href="https://it.wikipedia.org/wiki/Radiazione_alfa" title="Radiazione alfa – Italiaans" lang="it" hreflang="it" data-title="Radiazione alfa" data-language-autonym="Italiano" data-language-local-name="Italiaans" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-ja badge-Q70894304 mw-list-item" title=""><a href="https://ja.wikipedia.org/wiki/%E3%82%A2%E3%83%AB%E3%83%95%E3%82%A1%E7%B7%9A" title="アルファ線 – Japans" lang="ja" hreflang="ja" data-title="アルファ線" data-language-autonym="日本語" data-language-local-name="Japans" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-ko badge-Q70894304 mw-list-item" title=""><a href="https://ko.wikipedia.org/wiki/%EC%95%8C%ED%8C%8C%EC%84%A0" title="알파선 – Koreaans" lang="ko" hreflang="ko" data-title="알파선" data-language-autonym="한국어" data-language-local-name="Koreaans" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-li mw-list-item"><a href="https://li.wikipedia.org/wiki/Alfastraoling" title="Alfastraoling – Limburgs" lang="li" hreflang="li" data-title="Alfastraoling" data-language-autonym="Limburgs" data-language-local-name="Limburgs" class="interlanguage-link-target"><span>Limburgs</span></a></li><li class="interlanguage-link interwiki-nds mw-list-item"><a href="https://nds.wikipedia.org/wiki/Alphastrahlen" title="Alphastrahlen – Nedersaksisch" lang="nds" hreflang="nds" data-title="Alphastrahlen" data-language-autonym="Plattdüütsch" data-language-local-name="Nedersaksisch" class="interlanguage-link-target"><span>Plattdüütsch</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Promieniowanie_alfa" title="Promieniowanie alfa – Pools" lang="pl" hreflang="pl" data-title="Promieniowanie alfa" data-language-autonym="Polski" data-language-local-name="Pools" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-ru badge-Q70894304 mw-list-item" title=""><a href="https://ru.wikipedia.org/wiki/%D0%90%D0%BB%D1%8C%D1%84%D0%B0-%D0%B8%D0%B7%D0%BB%D1%83%D1%87%D0%B5%D0%BD%D0%B8%D0%B5" title="Альфа-излучение – Russisch" lang="ru" hreflang="ru" data-title="Альфа-излучение" data-language-autonym="Русский" data-language-local-name="Russisch" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sn mw-list-item"><a href="https://sn.wikipedia.org/wiki/Alpha_Radiation" title="Alpha Radiation – Shona" lang="sn" hreflang="sn" data-title="Alpha Radiation" data-language-autonym="ChiShona" data-language-local-name="Shona" class="interlanguage-link-target"><span>ChiShona</span></a></li><li class="interlanguage-link interwiki-uk badge-Q70893996 mw-list-item" title=""><a href="https://uk.wikipedia.org/wiki/%D0%90%D0%BB%D1%8C%D1%84%D0%B0-%D0%B2%D0%B8%D0%BF%D1%80%D0%BE%D0%BC%D1%96%D0%BD%D1%8E%D0%B2%D0%B0%D0%BD%D0%BD%D1%8F" title="Альфа-випромінювання – Oekraïens" lang="uk" hreflang="uk" data-title="Альфа-випромінювання" data-language-autonym="Українська" data-language-local-name="Oekraïens" 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class="vector-appearance vector-pinnable-element"> <div class="vector-pinnable-header vector-appearance-pinnable-header vector-pinnable-header-pinned" data-feature-name="appearance-pinned" data-pinnable-element-id="vector-appearance" data-pinned-container-id="vector-appearance-pinned-container" data-unpinned-container-id="vector-appearance-unpinned-container" > <div class="vector-pinnable-header-label">Uiterlijk</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">naar zijbalk verplaatsen</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">verbergen</button> </div> </div> </div> </nav> </div> </div> <div id="bodyContent" class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> </div> <div id="siteSub" class="noprint">Uit Wikipedia, de vrije encyclopedie</div> </div> <div id="contentSub"><div id="mw-content-subtitle"><span class="mw-redirectedfrom">(Doorverwezen vanaf <a href="/w/index.php?title=Alfaverval&redirect=no" class="mw-redirect" title="Alfaverval">Alfaverval</a>)</span></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="nl" dir="ltr"><figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/Bestand:Alfa_beta_gamma_radiation.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Alfa_beta_gamma_radiation.svg/260px-Alfa_beta_gamma_radiation.svg.png" decoding="async" width="260" height="347" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Alfa_beta_gamma_radiation.svg/390px-Alfa_beta_gamma_radiation.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Alfa_beta_gamma_radiation.svg/520px-Alfa_beta_gamma_radiation.svg.png 2x" data-file-width="600" data-file-height="800" /></a><figcaption>Alfastraling (bovenste) wordt al tegengehouden door een stukje papier, bètastraling door een aluminium plaat en gammastraling gaat zelfs door heel dikke materialen.</figcaption></figure> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/Bestand:Alpha_Decay.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/7/79/Alpha_Decay.svg/260px-Alpha_Decay.svg.png" decoding="async" width="260" height="177" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/79/Alpha_Decay.svg/390px-Alpha_Decay.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/79/Alpha_Decay.svg/520px-Alpha_Decay.svg.png 2x" data-file-width="250" data-file-height="170" /></a><figcaption>Alfastraling</figcaption></figure> <p><b>Alfastraling</b> is een van de meest voorkomende vormen van <a href="/wiki/Ioniserende_straling" title="Ioniserende straling">ioniserende straling</a>, bestaande uit <a href="/wiki/Alfadeeltje" title="Alfadeeltje">alfadeeltjes</a>. Alfastraling komt vrij bij alfaverval van grotere kernen zoals <a href="/wiki/Uranium" title="Uranium">uranium</a> en <a href="/wiki/Plutonium" title="Plutonium">plutonium</a>. Een alfadeeltje bestaat uit twee <a href="/wiki/Proton_(deeltje)" title="Proton (deeltje)">protonen</a> en twee <a href="/wiki/Neutron" title="Neutron">neutronen</a> en is daarmee de kern van een <a href="/wiki/Helium-4" title="Helium-4">helium-4-atoom He<sup>2+</sup></a>. </p><p>Een voorbeeld van zo'n <a href="/wiki/Chemische_reactie" title="Chemische reactie">reactie</a> is het <a href="/wiki/Radioactief_verval" title="Radioactief verval">radioactieve verval</a> van <a href="/wiki/Uranium-235" title="Uranium-235">uranium-235</a> tot <a href="/wiki/Thorium-231" title="Thorium-231">thorium-231</a>: </p> <dl><dd><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle {\ce {^{235}_{92}U -> ^{231}_{90}Th + ^{4}_{2}He}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <mmultiscripts> <mtext>U</mtext> <none /> <none /> <mprescripts /> <mn>92</mn> <mn>235</mn> </mmultiscripts> <mo stretchy="false">⟶</mo> <mmultiscripts> <mtext>Th</mtext> <none /> <none /> <mprescripts /> <mn>90</mn> <mn>231</mn> </mmultiscripts> <mo>+</mo> <mmultiscripts> <mtext>He</mtext> <none /> <none /> <mprescripts /> <mn>2</mn> <mn>4</mn> </mmultiscripts> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle {\ce {^{235}_{92}U -> ^{231}_{90}Th + ^{4}_{2}He}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/834d2b691a49d648bcd5e5fb289c8983f442b7d9" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:21.702ex; height:3.176ex;" alt="{\displaystyle {\ce {^{235}_{92}U -> ^{231}_{90}Th + ^{4}_{2}He}}}"></span></dd></dl> <p><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle {\ce {^{4}_{2}He}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <mmultiscripts> <mtext>He</mtext> <none /> <none /> <mprescripts /> <mn>2</mn> <mn>4</mn> </mmultiscripts> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle {\ce {^{4}_{2}He}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/9b8ab602e9d9ec2e8efa97ac22059f610cc92289" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:3.772ex; height:3.176ex;" alt="{\displaystyle {\ce {^{4}_{2}He}}}"></span> wordt vaak korter als een alfadeeltje α geschreven: </p> <dl><dd><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle {\ce {^{235}_{92}U -> ^{231}_{90}Th + \alpha}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <mmultiscripts> <mtext>U</mtext> <none /> <none /> <mprescripts /> <mn>92</mn> <mn>235</mn> </mmultiscripts> <mo stretchy="false">⟶</mo> <mmultiscripts> <mtext>Th</mtext> <none /> <none /> <mprescripts /> <mn>90</mn> <mn>231</mn> </mmultiscripts> <mo>+</mo> <mi>α</mi> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle {\ce {^{235}_{92}U -> ^{231}_{90}Th + \alpha}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/161a4981f9136bc65f7aa02cc24ff704d104f2c1" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:19.418ex; height:3.176ex;" alt="{\displaystyle {\ce {^{235}_{92}U -> ^{231}_{90}Th + \alpha}}}"></span></dd></dl> <div class="mw-heading mw-heading2"><h2 id="Alfaverval">Alfaverval</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Alfastraling&veaction=edit&section=1" title="Bewerk dit kopje: Alfaverval" class="mw-editsection-visualeditor"><span>bewerken</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Alfastraling&action=edit&section=1" title="De broncode bewerken van de sectie: Alfaverval"><span>brontekst bewerken</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Alfastraling ontstaat in het α-vervalproces van een <a href="/wiki/Radionuclide" title="Radionuclide">radio-isotoop</a>, waarin een <a href="/wiki/Atoomkern" title="Atoomkern">atoomkern</a> een <sup>4</sup>He-kern uitzendt. De radio-isotoop verliest daarmee twee protonen en twee neutronen. Dit wordt op kwantumniveau mogelijk gemaakt door het <a href="/wiki/Tunneleffect" title="Tunneleffect">tunneleffect</a>. Het <a href="/wiki/Massagetal" title="Massagetal">massagetal</a> wordt daarmee met vier verminderd en het <a href="/wiki/Atoomnummer" title="Atoomnummer">atoomnummer</a> met twee. Er wordt dus een compleet ander element gevormd. </p> <div class="mw-heading mw-heading2"><h2 id="Doordringend_vermogen">Doordringend vermogen</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Alfastraling&veaction=edit&section=2" title="Bewerk dit kopje: Doordringend vermogen" class="mw-editsection-visualeditor"><span>bewerken</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Alfastraling&action=edit&section=2" title="De broncode bewerken van de sectie: Doordringend vermogen"><span>brontekst bewerken</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Alfastraling kan al door een vel <a href="/wiki/Papier" title="Papier">papier</a> worden tegengehouden en heeft daarmee een kleiner doordringend vermogen dan <a href="/wiki/B%C3%A8tastraling" title="Bètastraling">bètastraling</a>, die door een dik boek kan worden tegengehouden en ook dan <a href="/wiki/Gammastraling" title="Gammastraling">gammastraling</a>, waarvoor een <a href="/wiki/Beton" title="Beton">betonnen</a> muur nodig is om die tegen te houden. </p> <div class="mw-heading mw-heading2"><h2 id="Gevaar">Gevaar</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Alfastraling&veaction=edit&section=3" title="Bewerk dit kopje: Gevaar" class="mw-editsection-visualeditor"><span>bewerken</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Alfastraling&action=edit&section=3" title="De broncode bewerken van de sectie: Gevaar"><span>brontekst bewerken</span></a><span class="mw-editsection-bracket">]</span></span></div> <p><a href="/wiki/Alfadeeltje" title="Alfadeeltje">Alfadeeltjes</a> zijn gevaarlijk als ze op <a href="/wiki/Weefsel_(biologie)" title="Weefsel (biologie)">weefsel</a> inwerken, ze brengen daarin chemische reacties teweeg, maar zijn gemakkelijk tegen te houden: een blad papier houdt alfadeeltjes al tegen. Alfastralers zijn daarom eigenlijk alleen gevaarlijk als ze in het <a href="/wiki/Menselijk_lichaam" title="Menselijk lichaam">lichaam</a> worden opgenomen, bijvoorbeeld wanneer men alfastralers via het voedsel of via injectie naar binnen krijgt. <a href="/wiki/Aleksandr_Litvinenko" title="Aleksandr Litvinenko">Aleksandr Litvinenko</a> werd op deze manier vergiftigd. Eenmaal in het lichaam kunnen zij in hun directe omgeving grote schade aanrichten, omdat alle energie die vrijkomt bij hun verval, zich in een klein gebied om de vervallende kern concentreert. </p><p>Een andere besmettingsweg is de blootstelling aan <a href="/wiki/Gas_(aggregatietoestand)" title="Gas (aggregatietoestand)">gasvormige</a> alfastralers, zoals het edelgas <a href="/wiki/Radon_(element)" title="Radon (element)">radon</a>. Als <a href="/wiki/Radium" title="Radium">radium</a> door alfaverval twee protonen verliest, wordt radon gevormd, een alfastraler. Doordat radon ingeademd kan worden, is het erg gevaarlijk. De zeer krachtige alfastraling raakt de binnenkant van de <a href="/wiki/Long_(orgaan)" title="Long (orgaan)">longen</a> en kan daar veel schade aanrichten. De eveneens radioactieve vervalproducten zijn bovendien niet meer vluchtig en zetten zich daarom af in de longen. </p><p>Een ander voorbeeld van alfastralers die door inademing gevaarlijk worden, is <a href="/wiki/Polonium-210" title="Polonium-210">polonium-210</a>, een radioactieve <a href="/wiki/Isotoop" title="Isotoop">isotoop</a>, die in <a href="/wiki/Sigarettenrook" title="Sigarettenrook">sigarettenrook</a> zit. Het roken van anderhalf pakje sigaretten per dag geeft in een jaar een even grote dosis als 300 röntgenscans van de borst.<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </p> <div class="toccolours appendix" role="presentation" style="font-size:90%; margin:1em 0 -0.5em; clear:both;"> <div><span style="font-weight:bold">Voetnoten</span></div> <div class="reflist" style="list-style-type: decimal;"><div class="mw-references-wrap"><ol class="references"> <li id="cite_note-1"><span class="mw-cite-backlink"><a href="#cite_ref-1">↑</a></span> <span class="reference-text"> <span class="citation" id="CITEREFWinters_TH,_Franza_JR1982"><span style="font-variant:small-caps;">Winters TH, Franza JR</span> (1982). <cite>Radioactivity in Cigarette Smoke</cite>. <i><a href="/wiki/New_England_Journal_of_Medicine" class="mw-redirect" title="New England Journal of Medicine">New England Journal of Medicine</a></i> <b>306</b> (6): 364–365. <a href="/wiki/PubMed" title="PubMed">PMID</a> <a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/pubmed/7054712">7054712</a>. <a href="/wiki/Digital_object_identifier" title="Digital object identifier">DOI</a>: <a rel="nofollow" class="external text" href="https://doi.org/10.1056/NEJM198202113060613">10.1056/NEJM198202113060613</a>. </span></span> </li> </ol></div></div> </div> <div class="interProject commons mw-list-item" style="display:none;"><a href="https://commons.wikimedia.org/wiki/Category:Alfastraling#mw-subcategories" class="extiw" title="commons:Category:Alfastraling">Mediabestanden</a></div> <div class="interProjectTemplate interProject-groot toccolours" style="display:flex; gap:1em; align-items:center; clear:both; margin:1em 0 -0.5em 0;"> <div style="min-width:max-content;"><span class="noviewer noresize" typeof="mw:File"><a href="/wiki/Bestand:Commons-logo.svg" class="mw-file-description"><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/25px-Commons-logo.svg.png" decoding="async" width="25" height="34" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/38px-Commons-logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/50px-Commons-logo.svg.png 2x" data-file-width="1024" data-file-height="1376" /></a></span></div> <div>Zie de categorie <i><b><a href="https://commons.wikimedia.org/wiki/Category:Alfastraling#mw-subcategories" class="extiw" title="commons:Category:Alfastraling">Alfastraling</a></b></i> van <a href="/wiki/Wikimedia_Commons" title="Wikimedia Commons">Wikimedia Commons</a> voor mediabestanden over dit onderwerp.</div> </div>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Overgenomen van "<a dir="ltr" href="https://nl.wikipedia.org/w/index.php?title=Alfastraling&oldid=68084365#Alfaverval">https://nl.wikipedia.org/w/index.php?title=Alfastraling&oldid=68084365#Alfaverval</a>"</div></div> <div id="catlinks" class="catlinks" data-mw="interface"><div id="mw-normal-catlinks" class="mw-normal-catlinks"><a href="/wiki/Categorie:Alles" title="Categorie:Alles">Categorieën</a>: <ul><li><a href="/wiki/Categorie:Deeltjesfysica" title="Categorie:Deeltjesfysica">Deeltjesfysica</a></li><li><a href="/wiki/Categorie:Straling" title="Categorie:Straling">Straling</a></li></ul></div><div id="mw-hidden-catlinks" class="mw-hidden-catlinks mw-hidden-cats-hidden">Verborgen categorie: <ul><li><a href="/wiki/Categorie:Wikipedia:Commonscat_zonder_link_op_Wikidata" title="Categorie:Wikipedia:Commonscat zonder link op Wikidata">Wikipedia:Commonscat zonder link op Wikidata</a></li></ul></div></div> </div> </main> </div> <div class="mw-footer-container"> <footer id="footer" class="mw-footer" > <ul id="footer-info"> <li id="footer-info-lastmod"> Deze pagina is voor het laatst bewerkt op 8 sep 2024 om 13:44.</li> <li id="footer-info-copyright">De tekst is beschikbaar onder de licentie <a rel="nofollow" class="external text" href="//creativecommons.org/licenses/by-sa/4.0/deed.nl">Creative Commons Naamsvermelding/Gelijk delen</a>, er kunnen aanvullende voorwaarden van toepassing zijn. 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