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Dear Puneet,<br>
<br>
Under 'Other Triggers' you list <br>
<blockquote>
<ul>
<li> For lepton ID:
</li>
</ul>
EC x CC (for functioning sectors 1 and 4?)<br>
CC (for functioning sectors 1 and 4?)<br>
</blockquote>
<pre>
</pre>
I suggest the following (all prescaled):<br>
a) EC .AND. CC (both sector 1)<br>
b) EC .AND. CC (both sector 4)<br>
c) EC (higher threshold) any sector<br>
<br>
Note that the 'minimum ionizing' threshold for EC for the main trigger
should probably be about 200 MeV or lower. Our forward angle minimum
energy protons will be in the Q2 = 0.5 GeV^2 bin and will therefore
have an average kinetic energy of omega = Q2 / 2 = 0.25 GeV. Since the
width of the distribution is probably about 20% (and the bin width is
finite), we should set the threshold at 0.2 GeV. <br>
<br>
Note that the calorimeter is about 140 g/cm^2 so that minimum ionizing
particles will deposit 0.28 GeV.<br>
<br>
- Larry<br>
<br>
<br>
Puneet Khetarpal wrote:
<blockquote
cite="mid:AANLkTi=t92auxzbWcYR_VuecQZhUrGvfQ6MyEfTkKp_A@mail.gmail.com"
type="cite">
<pre wrap="">Hi All,
I've taken the suggestions and placed the trigger config on the wiki
(accessible from main page):
<a class="moz-txt-link-freetext" href="https://claswebnew.jlab.org/rungroups/tpe/wiki/index.php/Trigger">https://claswebnew.jlab.org/rungroups/tpe/wiki/index.php/Trigger</a>
Please take a look. Any other comments and suggestions are most
welcome. If everything looks okay, then I'll send this to Sergey.
Thanks,
Puneet
"No word is true until it is eaten" - 36 Lessons of Vivec, Sermon 27
On Mon, Nov 8, 2010 at 12:06 PM, Puneet Khetarpal <a class="moz-txt-link-rfc2396E" href="mailto:puneetk@jlab.org"><puneetk@jlab.org></a> wrote:
</pre>
<blockquote type="cite">
<pre wrap="">Okie Dokie!
Thanks,
Puneet
"No word is true until it is eaten" - 36 Lessons of Vivec, Sermon 27
On Mon, Nov 8, 2010 at 12:05 PM, Larry Weinstein <a class="moz-txt-link-rfc2396E" href="mailto:weinstei@jlab.org"><weinstei@jlab.org></a> wrote:
</pre>
<blockquote type="cite">
<pre wrap="">Dear Puneet,
That should be
TOF Sec 1 Panel 2 AND TOF Sec 4 Panel 2
TOF Sec 2 Panel 2 AND TOF Sec 5 Panel 2
TOF Sec 3 Panel 2 AND TOF Sec 6 Panel 2
Note that Panel 2 is defined as TOF detectors 24-30 covering angles from 45
to 60 (approx).
- Larry
Puneet Khetarpal wrote:
</pre>
<blockquote type="cite">
<pre wrap="">
Oops. That's a typo (Copy and paste mistake). Thanks for catching that for
me.
I'll fix it. So, the actual secondary trigger is just:
Secondary Trigger (want, can do without it):
================================
TOF Sec 1 Panel 2 AND TOF Sec 4 Any panel
TOF Sec 2 Panel 2 AND TOF Sec 5 Any panel
TOF Sec 3 Panel 2 AND TOF Sec 6 Any panel
TOF Sec 4 Panel 2 AND TOF Sec 1 Any panel
TOF Sec 5 Panel 2 AND TOF Sec 2 Any panel
TOF Sec 6 Panel 2 AND TOF Sec 3 Any panel
Thanks for catching that.
Puneet
"No word is true until it is eaten" - 36 Lessons of Vivec, Sermon 27
On Mon, Nov 8, 2010 at 11:59 AM, Maurizio Ungaro<a class="moz-txt-link-rfc2396E" href="mailto:ungaro@jlab.org"><ungaro@jlab.org></a> wrote:
</pre>
<blockquote type="cite">
<pre wrap="">
I understand that but how can there is coincidence with EC that covers
only up to 45 ?
mauri
On Nov 8, 2010, at 11:56 AM, Puneet Khetarpal wrote:
</pre>
<blockquote type="cite">
<pre wrap="">
Hi Mauri,
"Panel 2" refers to hit in TOF with 45< theta< 62 deg.
We can ask Sergey for the CC x EC triggers in the functioning sectors.
I don't know how many bits are still left.
Puneet
"No word is true until it is eaten" - 36 Lessons of Vivec, Sermon 27
On Mon, Nov 8, 2010 at 11:52 AM, Maurizio Ungaro<a class="moz-txt-link-rfc2396E" href="mailto:ungaro@jlab.org"><ungaro@jlab.org></a>
wrote:
</pre>
<blockquote type="cite">
<pre wrap="">
Hi,
I'm not sure I understand the second trigger, coincidence between EC
and TOF panel 2 ?
Also, I recommend some other trigger, prescaled:
1: any TOF panel in one sector and any in the opposite sector
(prescaled)
2a: CC trigger in the functioning sectors
and / or
2b: CC+EC trigger where CC is functioning
2 will help us with lepton ID.
best,
mauri
On Nov 8, 2010, at 11:46 AM, Puneet Khetarpal wrote:
</pre>
<blockquote type="cite">
<pre wrap="">
Hi All,
Here is the trigger setup that has been decided for TPE for now.
Please take a look and suggest any changes / modifications. Sergey and
Co. would like us to give them a final trigger configuration for the
experiment as we are asking for special triggers and they would like
to make sure the trigger is configured appropriately to meet our
needs:
Primary Trigger (critical, can't do experiment without it):
========================================
TOF Sec 1 Panel 1 x EC Sec 1 AND TOF Sec 4 Any panel
TOF Sec 2 Panel 1 x EC Sec 2 AND TOF Sec 5 Any panel
TOF Sec 3 Panel 1 x EC Sec 3 AND TOF Sec 6 Any panel
TOF Sec 4 Panel 1 x EC Sec 4 AND TOF Sec 1 Any panel
TOF Sec 5 Panel 1 x EC Sec 5 AND TOF Sec 2 Any panel
TOF Sec 6 Panel 1 x EC Sec 6 AND TOF Sec 3 Any panel
In the above, "Panel 1" refers to TOF hits within 8< theta< 45 deg
which is scintillators #1 to #23; "EC" refers to low threshold EC
signal for Minimum ionizing; "Any panel" refers to signal coming from
any part of the TOF sector.
Secondary Trigger (want, can do without it):
================================
TOF Sec 1 Panel 2 x EC Sec 1 AND TOF Sec 4 Any panel
TOF Sec 2 Panel 2 x EC Sec 2 AND TOF Sec 5 Any panel
TOF Sec 3 Panel 2 x EC Sec 3 AND TOF Sec 6 Any panel
TOF Sec 4 Panel 2 x EC Sec 4 AND TOF Sec 1 Any panel
TOF Sec 5 Panel 2 x EC Sec 5 AND TOF Sec 2 Any panel
TOF Sec 6 Panel 2 x EC Sec 6 AND TOF Sec 3 Any panel
In the above, "Panel 2" refers to TOF hits within 45< theta< 62 deg
which is scintillators #24 to #30.
Level 2 Trigger (desire, can do without it):
==============================
DC Sec 1 Forward x TOF Sec 1 Panel 1
DC Sec 2 Forward x TOF Sec 2 Panel 1
DC Sec 3 Forward x TOF Sec 3 Panel 1
DC Sec 4 Forward x TOF Sec 4 Panel 1
DC Sec 5 Forward x TOF Sec 5 Panel 1
DC Sec 6 Forward x TOF Sec 6 Panel 1
In the above, "Forward" refers to the 0< theta< 45 degrees in DC. I
am not certain if we can have that in the trigger.
Please let me know if this trigger setup is what we need/want. Please
suggest any modifications or comments as needed. If everything looks
okay then I can give Sergey the final go ahead for this trigger
config.
Thank you,
Puneet
"No word is true until it is eaten" - 36 Lessons of Vivec, Sermon 27
_______________________________________________
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<a class="moz-txt-link-freetext" href="https://mailman.jlab.org/mailman/listinfo/tpe">https://mailman.jlab.org/mailman/listinfo/tpe</a>
</pre>
</blockquote>
<pre wrap="">
</pre>
</blockquote>
</blockquote>
<pre wrap="">
</pre>
</blockquote>
<pre wrap="">
_______________________________________________
Tpe mailing list
<a class="moz-txt-link-abbreviated" href="mailto:Tpe@jlab.org">Tpe@jlab.org</a>
<a class="moz-txt-link-freetext" href="https://mailman.jlab.org/mailman/listinfo/tpe">https://mailman.jlab.org/mailman/listinfo/tpe</a>
</pre>
</blockquote>
<pre wrap="">
--
Sincerely,
Larry
-----------------------------------------------------------
Lawrence Weinstein
University Professor
Physics Department
Old Dominion University
Norfolk, VA 23529
757 683 5803
757 683 3038 (fax)
<a class="moz-txt-link-abbreviated" href="mailto:weinstein@odu.edu">weinstein@odu.edu</a>
<a class="moz-txt-link-freetext" href="http://www.lions.odu.edu/~lweinste/">http://www.lions.odu.edu/~lweinste/</a>
</pre>
</blockquote>
<pre wrap="">
</pre>
</blockquote>
</blockquote>
<br>
<pre class="moz-signature" cols="72">--
Sincerely,
Larry
-----------------------------------------------------------
Lawrence Weinstein
University Professor
Physics Department
Old Dominion University
Norfolk, VA 23529
757 683 5803
757 683 3038 (fax)
<a class="moz-txt-link-abbreviated" href="mailto:weinstein@odu.edu">weinstein@odu.edu</a>
<a class="moz-txt-link-freetext" href="http://www.lions.odu.edu/~lweinste/">http://www.lions.odu.edu/~lweinste/</a></pre>
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