Differences

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--- calibration_fe1 [2017/11/27 16:59]
acqilc [Injection]
+++ calibration_fe1 [2021/07/10 23:21] (current)
@@ Line 30: / Line 30: @@
   * Tous les canaux allumes + cable d'injection (737974)
     * mean ~ 474
-    * RMS ~ 1.1
+    * RMS ~ 2.5 cx bruyants 3.3
-Threshold= 474+5*1.1 ~ 480
+Threshold= 474+5*3.3 ~ 491
 On essaie on doit mettre **496**
+Si on regarde la calibration cela nous donne
+**VTH (mV)= (496-474)/0.1743 = 126 mV**
+mais la calibration n'est pas sur un canal mais sur les 2 cotes
+donc **seuil minimal ~ 63 mV ou fC**
+Pas si eloigne que ca des 50 fC prevus
 ==== Injection ====
@@ Line 65: / Line 75: @@
 On met l'injection a 180 mV
+^ run ^ Threshold ^ Ntr ^ N2 ^ N14 ^ $\epsilon$ ^ d$\epsilon$ ^ $\epsilon_{XY}$ ^ d$\epsilon_{XY}$ ^$\Delta_T$ ^ $\sigma_T$^
 |737985|496|2382|1770|492|74.31| 0.90|20.65| 0.83|-14.57|0.289|
 |737993|495|2382|2201|1091|92.40| 0.54|45.80| 1.02|-14.57|0.299|
 |737994|494|2384|2319|1573|97.27| 0.33|65.98| 0.97|-14.56|0.290|
 |737995|493|2382|2369|1932|99.45| 0.15|81.11| 0.80|-14.56|0.279|
+|737996|492|3091|3088|2417|99.90| 0.06|78.19| 0.74|-14.57|0.275|
-le bruit commence a etre eleve
+Le bruit explose a 492

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