<p dir="ltr">Well solid state device is usually less radiation hard than photocathode and dynodes, the low energy neutrons tend to kill the semiconductor junction.</p>
<p dir="ltr">I guess there are some articles about it.</p>
<p dir="ltr">Alexandre</p>
<div class="gmail_quote">On Sep 19, 2014 5:35 PM, "Zhiwen Zhao" <<a href="mailto:zwzhao@jlab.org">zwzhao@jlab.org</a>> wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">hi, Xiaochao<br>
<br>
I don't know about how rad hard finemesh PMT is.<br>
here are some info including a detailed study of its gain and field dependance.<br>
<a href="https://www.dropbox.com/sh/kmf9a3qgnnye6tp/AACYRzZ3s3oh4DcogqAHVPtMa?dl=0" target="_blank">https://www.dropbox.com/sh/kmf9a3qgnnye6tp/AACYRzZ3s3oh4DcogqAHVPtMa?dl=0</a><br>
<br>
Zhiwen<br>
<br>
On 9/19/2014 10:18 AM, Xiaochao Zheng wrote:<br>
> Dear all:<br>
><br>
> We had a meeting with the detector group yesterday and I have logged it in the form of EC meeting minutes:<br>
><br>
> <a href="http://hallaweb.jlab.org/experiment/E05-007/SoLID/EC/meetings/SoLID_EC_Weekly_minutes.html" target="_blank">http://hallaweb.jlab.org/experiment/E05-007/SoLID/EC/meetings/SoLID_EC_Weekly_minutes.html</a><br>
><br>
> Please provide comments and suggestions.<br>
><br>
> One question I have is how do we know that fine-mesh PMTs are radiation hard? Are there quantitative proof?<br>
><br>
> Thanks,<br>
><br>
> Xiaochao<br>
> ----------------------------------------------------------------------------<br>
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><br>
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</blockquote></div>