X-Git-Url: http://git.uio.no/git/?a=blobdiff_plain;f=ITS%2FAliITSOnlineSDDBase.h;h=a66c8b4971ad61882e4701108db71ceb689037bb;hb=8038c1f2c037d6f0b65e94535425ebdb28e1a5ce;hp=036061395cd1c2fc2e326887a8fd3edcfb7722c3;hpb=116c6c505147540eabf82e361a2405eda869db53;p=u%2Fmrichter%2FAliRoot.git

diff --git a/ITS/AliITSOnlineSDDBase.h b/ITS/AliITSOnlineSDDBase.h
index 036061395cd..a66c8b4971a 100644
--- a/ITS/AliITSOnlineSDDBase.h
+++ b/ITS/AliITSOnlineSDDBase.h
@@ -24,7 +24,7 @@ class AliITSOnlineSDDBase : public AliITSOnlineSDD {
 
   void SetMinBaseline(Float_t bas=10.){fMinBaseline=bas;}
   void SetMaxBaseline(Float_t bas=150.){fMaxBaseline=bas;}
-  void SetMinRawNoise(Float_t ns=0.001){fMinRawNoise=ns;}
+  void SetMinRawNoise(Float_t ns=0.5){fMinRawNoise=ns;}
   void SetMaxRawNoise(Float_t ns=9.){fMaxRawNoise=ns;}
   void SetNSigmaNoise(Float_t ns=4.){fNSigmaNoise=ns;}
   void SetGoldenBaselineValue(Float_t val=20.){fGoldenBaseline=val;}
@@ -41,8 +41,9 @@ class AliITSOnlineSDDBase : public AliITSOnlineSDD {
   void GetMinAndMaxBaseline(Float_t &basMin, Float_t &basMax) const;
   Float_t GetMinimumBaseline() const;
   Float_t GetAnodeRawNoise(Int_t iAnode) const{
-    if(fNEvents>0) return TMath::Sqrt(fSumRawNoise[iAnode]/fNEvents-TMath::Power(GetAnodeBaseline(iAnode),2));
-    
+    Float_t noise2=0.;
+    if(fNEvents>0) noise2=fSumRawNoise[iAnode]/fNEvents-fSumBaseline[iAnode]*fSumBaseline[iAnode]/fNEvents/fNEvents;
+    if(noise2>0.) return TMath::Sqrt(noise2);
     else return 0;
   }