Difference between revisions of "Elong-13-04-24"
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[[Image:2013-04-24-1kHz-rates.png|900px|frame|none|alt=1kHz Max Rate|The max SHMS DAQ rate is 1kHz. The estimates above were done to show what we can do without prescales.]] | [[Image:2013-04-24-1kHz-rates.png|900px|frame|none|alt=1kHz Max Rate|The max SHMS DAQ rate is 1kHz. The estimates above were done to show what we can do without prescales.]] | ||
| − | --[[User:Ellie|E. Long]] | + | |
| + | ==With Prescales, Max rate = 500kHz== | ||
| + | [[Image:2013-04-24-500kHz-rates.png|900px|frame|none|alt=1kHz Max Rate|The max rate that the SHMS can handle is 500kHz. The estimates above were done to show what we can do with prescales.]] | ||
| + | |||
| + | |||
| + | --[[User:Ellie|E. Long]] 19:38, 25 April 2013 (UTC) | ||
Revision as of 14:38, 25 April 2013
Rates Update
→ For the plot below, I assume the following:
Target Material ND3 Target Length 3 cm Pzz 20% E0 11 GeV xBjorken 0.1, 0.3, 0.5, 0.75, 1.0 Q2 Variable θq Calculated θe' Calculated E' Calculated W Calculated
- → Total rates have been included, and are shown plotted with the D2 rates
- → Error bars shown are statistical only
- → I found a slight bug from previous calculations: I was assuming the time output was in hours, but it was in fact in days
- → This has now been corrected, but all previous time calculations are under-estimated by a factor of 24
- → F1 and F2 are now calculated using the Bosted fits, which lets us extend into a higher x range
- → It is valid for 0<W<3.2 GeV and 0.2<Q2<5 GeV2
- → The rates note has been updated to fix the sign problems that Oscar and Dustin noted
No Prescales, Max rate = 1kHz
The max SHMS DAQ rate is 1kHz. The estimates above were done to show what we can do without prescales.
With Prescales, Max rate = 500kHz
The max rate that the SHMS can handle is 500kHz. The estimates above were done to show what we can do with prescales.
--E. Long 19:38, 25 April 2013 (UTC)
