Cheers!
I plan on attending the cal meeting on the 24th and will invite Hai,
Ben and Ed. I've copied them on this mail in case they are not on the
halld calorimetry mail group.
We have discussed the implementation of the timing algorithm at our
regular weekly trigger meeting, and look forward to Jake's
presentation, and other work on the algorithm to achieve the FCAL
timing requirements.
I site below an interesting article on the method used for extracting
timing information with methods that are FPGA 'friendly'. As you know
we have eight fadc at 4ns sampling piping into one FPGA so floating
point algorithms and math resource blocks in the FPGA may be a limit,
but a good challenge nonetheless. For what it's worth click the
link--> Timing
Article
Best regards,
Chris
~~~~~~~~~~~~~~
Matthew Shepherd wrote:
Hi Zisis,
I will not be available on Monday since I'll be at PANIC. I would
prefer to delay Jake's presentation on timing resolution measurements
until the 24th. This gives us a little more time to study a few
additional things.
Mihajlo has been working on creative approximations of the sqrt( -ln(
x) ) function that is needed to implement our timing algorithm. He
mentioned wanting to present that. It would be interesting to get some
input from Chris and/or Fernando as to what the capabilities of FADC
firmware are.
-Matt
On Nov 6, 2008, at 10:39 AM, Zisis Papandreou wrote:
Hello everyone:
there has been a development that makes possible a Calorimetry Working
Group meeting for this upcoming Monday, November 10.
Specifically, George and I were to have shifts on the SANE experiment
in Hall C. However, the polarized
target magnet developed a problem in its superconducting coils that
prevents it from ramping it up. All shifts have been cancelled for the
time being.
Therefore, let's go ahead with the meeting this coming Monday. As
usually, it will be at 10:30 EST. I will prepare an agenda later this
morning.
-Serguei, would you be ready to give us a update on APDs? Please aim
at 10-15 min max, leaving time for discussion and questions. I'll
provide links to your materials from the Calorimetry Wiki page.
- Matt, you guys are welcome to give your updates as well. :-)
- Christine, will you be able to join?
Cheers folks, Zisis...
On 4-Nov-08, at 5:49 PM, Elton Smith wrote:
HI Zisis,
As I mentioned at the last calorimeter working group meeting, I will be
away at PANIC next week. Can you run the calorimeter working group
meeting?
Serguei has agreed to give a status of APDs and possible use of this
light
detector with the Bcal, and I think it makes sense to go ahead with an
update if he is ready. He has sent me some materials that might be
useful.
I have placed them on the web for easy access at
http://clasweb.jlab.org/elton/talks/Tut-Musienko.pdf
http://clasweb.jlab.org/elton/talks/Sadigov_talk-Beaune-05.pdf
http://clasweb.jlab.org/elton/talks/CMS_APD_for_CLAS.pptx
I am not sure if it is appropriate to post them on the portal, and he
is
promised to update the last one with the most relevant information.
Serguei can contact you directly with the latest information.
Thanks, Elton.
Elton Smith
Jefferson Lab MS 12H5
12000 Jefferson Ave
Suite # 16
Newport News, VA 23606
elton@jlab.org
(757) 269-7625
(757) 269-6331 fax
---
Dr. Zisis Papandreou | email: zisis@uregina.ca
Department of Physics | tel. : (306) 585-5379
University of Regina | tel. : (306) 585-4149
Regina, SK S4S 0A2 | fax. : (306) 585-5659
World Wide Web: http://www.phys.uregina.ca/sparro/zisis/
|