[PRad] PRad phone meeting on Friday (January 15) at 9:00am EST

[gasparan at jlab.org]

  Hi Li,

 The test setup looks fine to me, it has to be done on that way.
 But, I am having problem with the signal shape. It looks like
 either you have to intense light source or/and to long light signal.
 The typical signal has to be ~100 mv (you have ~1 V level that is not
 good for the tube) and ~20 nsec.
 Try to retune the LED generator appropriately and see again.

 I will take the key with me next time.

 Thanks,
 Ashot


> Hi Ashot,
> I and Xinzhan tested spare 19 PMTs , they all good.
> We used a LED light and put PMTs in the black box
> Please see the attached photos of setup and signal.
> Would you please bring the key of your locker which I and Xinzhan believe
> you put some dividers in.
> Cheers
>
>
>
>
>
>
>
>
> On Tuesday, January 19, 2016, <gasparan at jlab.org> wrote:
>
>>
>>  Hi Chao,
>>
>>  One important question: how do you reconstruct the angle?
>>  1) is that by the hit-position in GEM?
>>  2) is that the angle after the scattering in the material?
>>
>>  Ashot
>>
>>
>> > Dear All,
>> >
>> > Attached is the simulation for new window between target chamber and
>> > vacuum
>> > box.
>> >
>> > Best Regards,
>> > Chao
>> >
>> > On Thu, Jan 14, 2016 at 6:10 PM, Chao Peng <pengc2010 at gmail.com
>> <javascript:;>> wrote:
>> >
>> >> Dear all,
>> >>
>> >> We will have our weekly phone meeting on this Friday (January 15) at
>> >> 9:00am EST.
>> >> Room F227 is reserved for people at JLab.
>> >>
>> >> On the agenda:
>> >> - DAQ development
>> >> - GEM status
>> >> - Accelerator Status/Schedule
>> >> - Other topics, target, beamline, pre-calibration...
>> >> - New meeting time
>> >>
>> >> The link to the minutes of the weekly meetings is:
>> >> https://wiki.jlab.org/pcrewiki/index.php/PRad_Weekly_Meetings
>> >>
>> >>
>> >> Instructions for using Blue Jeans to join the meeting:
>> >>
>> >> 0. You can have access to the screen sharing through this URL:
>> >> https://bluejeans.com/6017317348
>> >>
>> >> 1. Dial Toll-Free Number: 1-888-240-2560 (from US and Canada
>> excluding
>> >> Hawaii and Alaska)
>> >>     For the list of numbers to call in from a foreign country, please
>> >> visit: http://bluejeans.com/numbers
>> >>
>> >> 2. Enter the Meeting ID, followed by #
>> >>     Meeting ID: 6017317348
>> >>
>> >> 3. Moderator passcode: 2284
>> >>
>> >> Please let me know if you cannot make it.
>> >> Thank you very much.
>> >>
>> >> Best regards,
>> >> Chao
>> >>
>> >> --
>> >> Chao Peng
>> >> Department of Physics
>> >> BOX 90305
>> >> Duke University
>> >> Durham, NC 27708
>> >>
>> >
>> >
>> >
>> > --
>> > Chao Peng
>> > Department of Physics
>> > BOX 90305
>> > Duke University
>> > Durham, NC 27708
>> > _______________________________________________
>> > PRad mailing list
>> > PRad at jlab.org <javascript:;>
>> > https://mailman.jlab.org/mailman/listinfo/prad
>> >
>>
>>
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>
>
> --
> Li Ye
> 757-291-9896
> Physics Department
> Mississippi State University
>