https://e-learning.pan-training.eu/wiki/index.php?action=history&feed=atom&title=Test_pageTest page - Revision history2026-05-23T22:29:56ZRevision history for this page on the wikiMediaWiki 1.39.1https://e-learning.pan-training.eu/wiki/index.php?title=Test_page&diff=1165&oldid=prevWikiadmin: 1 revision imported2020-02-18T22:15:15Z<p>1 revision imported</p>
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</td></tr></table>Wikiadminhttps://e-learning.pan-training.eu/wiki/index.php?title=Test_page&diff=1164&oldid=prevucph>Peter at 11:55, 15 July 20192019-07-15T11:55:07Z<p></p>
<p><b>New page</b></p><div>\(\bar{N}\pm 2\sqrt{\bar{N}}\).<br />
<br />
\begin{equation}\label{dummy378179674}<br />
\Psi = \dfrac{ {\rm number\; of\; neutrons\; impinging\; on\; a\; surface\; per\; second}}<br />
{ {\rm surface\; area\; perpendicular\; to\; the\; neutron\; beam\; direction}} ,<br />
\end{equation}<br />
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=== [[Another test]] ===<br />
{{hidden begin| toggle=left}}<br />
{{Another test }}<br />
{{hidden end}}<br />
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<!--\label{prob:cross_section}--><br />
Imagine a beam of neutrons arriving randomly over a surface of area \(A\) perpendicular to the beam, with an arrival rate of \(N\) neutrons per second. In a semi-classical approximation, you can consider each neutron to be point shaped. Now, on the surface we place one nucleus with an effective radius of \(2b\). Assume that each neutron hitting the nucleus is scattered and all other neutrons are left unscattered.<br />
<br />
=====Question 1=====<br />
Calculate the neutron flux.<br />
<br />
{{hidden begin|toggle=right|title=Solution|titlestyle=background:#ccccff}}<br />
The flux is \( \Psi = N / A \). <br />
{{hidden end}}<br />
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==== Server variables ====<br />
SERVERNAME points to {{SERVERNAME}} and {{wgScriptPath}} can be used e.g. to link to the main page<br />
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Man kan godt sætte f.eks. \({R_{g}}\) inline ved hjælp af <br />
<pre>\({R_{g}}\)</pre><br />
det er kun den meget kompakte form $R_g$ der ikke virker</div>ucph>Peter