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thanks Jay. Any papers posted on variable PM solenoids? I expect the radiation conditions in the positron target are much more severe than for the 22 GeV FFA.</div>
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Bob.</div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> PEPPo <peppo-bounces@jlab.org> on behalf of Jay Benesch via PEPPo <peppo@jlab.org><br>
<b>Sent:</b> Thursday, May 1, 2025 10:56 AM<br>
<b>To:</b> peppo@jlab.org <peppo@jlab.org><br>
<b>Subject:</b> Re: [PEPPo] interesting solenoid article</font>
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<div class="PlainText">There are lots of arxiv posts on Halbach arrays with variable field
<br>
strength. Radiation damage is an issue which is why Ryan has an LDRD <br>
with many samples in the tunnel with attached dosimeters.<br>
<br>
<a href="https://scholar.google.com/scholar?hl=en&as_sdt=0%2C47&q=halbach+array&oq=Halbach">https://scholar.google.com/scholar?hl=en&as_sdt=0%2C47&q=halbach+array&oq=Halbach</a>
<br>
yields 22,800 results.</div>
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