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<p class="MsoNormal"><span lang="EN-US">Dear all,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I am currently trying to print out all the tilt angles in a tilt series using the Saxton scheme. I find the reference Saxton 1984 unsatisfactory in <i>how</i> to actually calculate the values. Also, in “Electron tomography”,
edited by J. Frank p. 143, it says:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">“In this [Saxton] scheme, the tilt angle varies as alpha_n+1 = alpha_n + arcsin(sin(alpha_0)*cos(alpha_0)).“<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">As I interpret this expression, the last term on the right-hand side is a constant, and hence the tilt angles are distributed with an even angular increment throughout the series. This should not be constant!<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Please, can anyone shed some light on this? What am I missing here?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Best regards,</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">Charlotte Hamngren Blomqvist<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:Calibri;color:black">_______________________<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:Calibri;color:black">Charlotte Hamngren Blomqvist, PhD<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:Calibri;color:black">Researcher<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:Calibri;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:Calibri;color:black">Department of Physics<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:Calibri;color:black">Eva Olsson group<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:Calibri;color:black">Chalmers University of Technology<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:Calibri;color:black">SE-41296 Gothenburg, Sweden<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:Calibri;color:black">Tel +46-(0)31 772 51 80<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:Calibri;color:black"><a href="http://www.chalmers.se/">www.chalmers.se</a><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:Calibri;color:black">E-mail: <a href="mailto:charlotte.hamngren@chalmers.se">charlotte.hamngren.blomqvist@chalmers.se</a><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:Calibri;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:Calibri;color:black;mso-fareast-language:EN-US">Visiting address: Fysikgränd 3, room F4417b</span><span style="font-size:11.0pt;font-family:Calibri"><o:p></o:p></span></p>
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