[Solid_ec] minutes on meeting with detector group 9/18/14

[Yi Qiang]

Not just low energy neutrons. Actually, higher momentum neutrons bring 
more damage, just the absolute flux is smaller. Never the less, I have 
sent you and Xiaochao with some information of finemesh PMTs we tested 
for Hall-D. For APD, Zein-Eddine did some radiation tests during P-REX.
On 9/19/2014 5:42 PM, Alexandre Camsonne wrote:
>
> Well solid state device is usually less radiation hard than 
> photocathode and dynodes, the low energy neutrons tend to kill the 
> semiconductor junction.
>
> I guess there are some articles about it.
>
> Alexandre
>
> On Sep 19, 2014 5:35 PM, "Zhiwen Zhao" <zwzhao at jlab.org 
> <mailto:zwzhao at jlab.org>> wrote:
>
>     hi, Xiaochao
>
>     I don't know about how rad hard finemesh PMT is.
>     here are some info including a detailed study of its gain and
>     field dependance.
>     https://www.dropbox.com/sh/kmf9a3qgnnye6tp/AACYRzZ3s3oh4DcogqAHVPtMa?dl=0
>
>     Zhiwen
>
>     On 9/19/2014 10:18 AM, Xiaochao Zheng wrote:
>     > Dear all:
>     >
>     > We had a meeting with the detector group yesterday and I have
>     logged it in the form of EC meeting minutes:
>     >
>     >
>     http://hallaweb.jlab.org/experiment/E05-007/SoLID/EC/meetings/SoLID_EC_Weekly_minutes.html
>     >
>     > Please provide comments and suggestions.
>     >
>     > One question I have is how do we know that fine-mesh PMTs are
>     radiation hard?  Are there quantitative proof?
>     >
>     > Thanks,
>     >
>     > Xiaochao
>     >
>     ----------------------------------------------------------------------------
>     > Associate Professor, Department of Physics, University of Virginia
>     > 382 McCormick Rd, Charlottesville, VA 22904
>     > Telephone: (434) 243-4032 <tel:%28434%29%20243-4032> (during
>     academic year); or (757) 810-2885 <tel:%28757%29%20810-2885> (summer)
>     > Homepage: http://people.virginia.edu/~xz5y/Main.html
>     <http://people.virginia.edu/%7Exz5y/Main.html>
>     >
>     ----------------------------------------------------------------------------
>     >
>     >
>     > _______________________________________________
>     > Solid_ec mailing list
>     > Solid_ec at jlab.org <mailto:Solid_ec at jlab.org>
>     > https://mailman.jlab.org/mailman/listinfo/solid_ec
>     >
>     _______________________________________________
>     Solid_ec mailing list
>     Solid_ec at jlab.org <mailto:Solid_ec at jlab.org>
>     https://mailman.jlab.org/mailman/listinfo/solid_ec
>
>
>
> _______________________________________________
> Solid_ec mailing list
> Solid_ec at jlab.org
> https://mailman.jlab.org/mailman/listinfo/solid_ec

-------------- next part --------------
An HTML attachment was scrubbed...
URL: https://mailman.jlab.org/pipermail/solid_ec/attachments/20140919/1b7e3a6b/attachment.html