Changeset 823 for trunk


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Timestamp:
05/31/01 08:52:48 (23 years ago)
Author:
harald
Message:
...
File:
1 edited

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  • trunk/ICRC_01/mccontrib.tex

    r821 r823  
    393393background rate (protons and light of night sky) is $396 \pm 88$ Hz.
    394394
    395 It has been also studied the effect on the trigger rate of the discriminator
    396 threshold (see figure \ref{fig_rates}). The trigger rate decreases
    397 with increasing discriminator threshold. Notice that the expected rate
    398 for the discriminator value at 3 mV is more than 100 times larger than
    399 for the other values.
    400 
     395The dependence of the first level trigger rate from the discriminator
     396threshold is shown in figure \ref{fig_rates}.
     397The trigger rate decreases
     398with increasing discriminator threshold as expected.
     399The rate for the discriminator threshold of 3 mV is more than 100
     400times larger than for the other values.
    401401\begin{figure}[hb]
    402402 \vspace*{2.0mm} % just in case for shifting the figure slightly down
     
    407407\end{figure}
    408408
     409These results show that the MAGIC telesope will use a disriminator
     410threshold of about 4 mV. This value corresponds to a threshold of
     411about 8 photo electrons.
     412
     413It has to be mentioned here, that all the results here are based on
     414the first level trigger. There is a big potiential to optimize the
     415settings here. I.e. the background rate can be reduced by
     416increasing the discriminator threshold for a few dedicated pixels,
     417that have a star in their field of view. Studies in this direction are
     418ongoing and will be presented on the conference.
    409419
    410420\section{Conclusion}
     421
     422We presented the actual status of Monte Carlo simulation for the MAGIC
     423telescope.
     424
    411425
    412426\begin{acknowledgements}
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