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5  <title>Description of physics_RFacceptance</title>
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19
20<h1>physics_RFacceptance
21</h1>
22
23<h2><a name="_name"></a>PURPOSE <a href="#_top"><img alt="^" border="0" src="../../../up.png"></a></h2>
24<div class="box"><strong>PHYSICS_RFACCEPTANCE - Computes RF acceptance</strong></div>
25
26<h2><a name="_synopsis"></a>SYNOPSIS <a href="#_top"><img alt="^" border="0" src="../../../up.png"></a></h2>
27<div class="box"><strong>function epsilon_RF = physics_RFacceptance(VRF,alpha,rho,E,h) </strong></div>
28
29<h2><a name="_description"></a>DESCRIPTION <a href="#_top"><img alt="^" border="0" src="../../../up.png"></a></h2>
30<div class="fragment"><pre class="comment"> PHYSICS_RFACCEPTANCE - Computes RF acceptance
31
32  INPUTS
33  1. VRF - RF voltage in kV
34  2. alpha - Momentum compaction factor
35  3. rho - Curvature radius in m
36  4. E - Energy in GeV 
37  5. h - Harmonic number
38 
39  OUPUTS
40  1. epsilon_RF - RF acceptance
41
42  EXAMPLES
43  1. physics_RFacceptance(4000,getmcf('Model'),5.36,2.75,416)
44     is 0.057 for SOLEIL in the linear approximation
45
46  See Also  <a href="physics_RFacceptance.html" class="code" title="function epsilon_RF = physics_RFacceptance(VRF,alpha,rho,E,h)">physics_RFacceptance</a>, physics_quatumlifetime,
47  <a href="physics_energyloss.html" class="code" title="function U0 = physics_energyloss(E,rho)">physics_energyloss</a></pre></div>
48
49<!-- crossreference -->
50<h2><a name="_cross"></a>CROSS-REFERENCE INFORMATION <a href="#_top"><img alt="^" border="0" src="../../../up.png"></a></h2>
51This function calls:
52<ul style="list-style-image:url(../../../matlabicon.gif)">
53<li><a href="physics_energyloss.html" class="code" title="function U0 = physics_energyloss(E,rho)">physics_energyloss</a>       PHYSICS_ENERGYLOSS - Computed energy loss per turn</li></ul>
54This function is called by:
55<ul style="list-style-image:url(../../../matlabicon.gif)">
56<li><a href="physics_booster.html" class="code" title="function physics_booster">physics_booster</a>    </li></ul>
57<!-- crossreference -->
58
59
60<h2><a name="_source"></a>SOURCE CODE <a href="#_top"><img alt="^" border="0" src="../../../up.png"></a></h2>
61<div class="fragment"><pre>0001 <a name="_sub0" href="#_subfunctions" class="code">function epsilon_RF = physics_RFacceptance(VRF,alpha,rho,E,h)</a>
620002 <span class="comment">% PHYSICS_RFACCEPTANCE - Computes RF acceptance</span>
630003 <span class="comment">%</span>
640004 <span class="comment">%  INPUTS</span>
650005 <span class="comment">%  1. VRF - RF voltage in kV</span>
660006 <span class="comment">%  2. alpha - Momentum compaction factor</span>
670007 <span class="comment">%  3. rho - Curvature radius in m</span>
680008 <span class="comment">%  4. E - Energy in GeV</span>
690009 <span class="comment">%  5. h - Harmonic number</span>
700010 <span class="comment">%</span>
710011 <span class="comment">%  OUPUTS</span>
720012 <span class="comment">%  1. epsilon_RF - RF acceptance</span>
730013 <span class="comment">%</span>
740014 <span class="comment">%  EXAMPLES</span>
750015 <span class="comment">%  1. physics_RFacceptance(4000,getmcf('Model'),5.36,2.75,416)</span>
760016 <span class="comment">%     is 0.057 for SOLEIL in the linear approximation</span>
770017 <span class="comment">%</span>
780018 <span class="comment">%  See Also  physics_RFacceptance, physics_quatumlifetime,</span>
790019 <span class="comment">%  physics_energyloss</span>
800020
810021 <span class="comment">%</span>
820022 <span class="comment">%  Written by Laurent S. Nadolski</span>
830023
840024
850025 U0 = <a href="physics_energyloss.html" class="code" title="function U0 = physics_energyloss(E,rho)">physics_energyloss</a>(E,rho); <span class="comment">% energyloss per turn in keV</span>
860026 q = VRF./U0;
870027
880028 epsilon_RF = sqrt(2/(pi*alpha*h)*(U0*1e-6./E).*(sqrt(q.*q-1)-acos(1./q)));
890029</pre></div>
90<hr><address>Generated on Mon 21-May-2007 15:35:27 by <strong><a href="http://www.artefact.tk/software/matlab/m2html/">m2html</a></strong> &copy; 2003</address>
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