prog saved

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nam
2014-10-02 16:12:17 +09:00
parent deea94a001
commit c8e33899af
4 changed files with 116 additions and 69 deletions

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@@ -59,7 +59,7 @@ pulses on all detector channels, and picks all pulses occur in
a time window of \SI{\pm 10}{\si{\us}} around each candidate to build
a muon event. A muon candidates is a hit on the upstream plastic scintillator
with an amplitude higher than a threshold which was chosen to reject MIPs. The
period of \SI{10}{\si{\us}} is long enough compares to the mean life time of
period of \SI{10}{\si{\us}} is long enough compared to the mean life time of
muons in the target materials
(\SI{0.758}{\si{\us}} for silicon, and \SI{0.864}{\si{\us}}
for aluminium~\cite{SuzukiMeasday.etal.1987}) so practically all of emitted
@@ -388,7 +388,7 @@ This number of X-rays needs to be corrected for following effects:
&= 1.06
\end{align}
The 2-ms-long reset pulses effectively reduce the actual measurement time
compares to other channels, so the correction factor for the effect is:
compared to other channels, so the correction factor for the effect is:
\begin{align}
k_{\textrm{reset pulse}} &= \frac{\textrm{(measurement time)}}
{\textrm{(measurement time)}
@@ -830,7 +830,7 @@ The uncertainty of the emission rate could come from several sources:
collimator. In the worst case when the muon beam is flatly distributed,
that displacement could change the acceptance of the silicon detectors by
12\%. Although no measurement was done to determine the efficiency of the
silicon detectors, it would have small effect compare to other factors.
silicon detectors, it would have small effect compared to other factors.
\end{enumerate}
The combined uncertainty from known sources above therefore could be as large