From 1db4a90cb9ab235a1dc898db62e443ed6283dddb Mon Sep 17 00:00:00 2001 From: Dennis Doering Date: Wed, 27 Nov 2013 10:48:31 +0100 Subject: [PATCH] Update --- IWORID2013/IWORID.tex | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/IWORID2013/IWORID.tex b/IWORID2013/IWORID.tex index 912f554..bd5ca5d 100644 --- a/IWORID2013/IWORID.tex +++ b/IWORID2013/IWORID.tex @@ -133,7 +133,7 @@ The relation between the charge collection efficiency (CCE), the gain and the me One observes that the gain is strongly reduced with increasing diode size and the capacitive noise of the pixels raises accordingly. However, this effect comes with an increase in terms of charge collection efficiency, which raises the signal. This is shown in figure \ref{fig:StoNDiodeSize}, which shows the noise, the most probable signal and the S/N as recorded once the sensor was illuminated by $\upbeta$-rays from a $^{90}$Sr-source. One observes that the S/N, which is defined as the most probable signal in the seed pixel divided by the median of the noise distribution, is in the order of 50 and increases slightly with increasing diode pitch despite the increase of the median noise. Once propagating the ``99\%-noise'' to the S/N, one finds that 99\% of all pixels exceeds 22 and no significant impact of the diode pitch is observed. Note that this S/N is sufficient for reliable MIP-detection and remains fairly above the average S/N of our early successful prototypes like MIMOSA-2. - +%TEST %\section{Experimental setup} %To demonstrate the benefits of this technology, first prototype sensors named MIMOSA-32, MIMOSA-32ter and MIMOSA-34 were produced. They provide each 32 different pixel matrices to study different pixel and amplifier layouts. The 512 pixels of a matrix are arranged in eight columns with 64 pixels per column. The integration time is $32\mus$, which represents the design goal of the CBM and ALICE sensor MISTRAL. The sensors were manufactured also with a high-resistivity epitaxial layer up to a resistivity of $6~\rm k\Omega cm$ to preserve and extend the benefits in terms of non-ionizing radiation hardness \cite{RESMDD2012}. \newline -- 2.43.0