From daf14717c3108b70e82dbd92dc1ea94017cb7272 Mon Sep 17 00:00:00 2001
From: cvetan <cvetan@f7af4fe6-9843-0410-8265-dc069ae4e863>
Date: Fri, 24 Mar 2006 13:48:46 +0000
Subject: [PATCH] L1 Gating signal is now used to remove the TPC hits which
 arrive before the gating signal. By default its delay is set to 0, so no hits
 will be removed.

---
 TPC/AliTPC.cxx | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/TPC/AliTPC.cxx b/TPC/AliTPC.cxx
index 8d33223b664..4df5f01f6aa 100644
--- a/TPC/AliTPC.cxx
+++ b/TPC/AliTPC.cxx
@@ -1668,6 +1668,13 @@ void AliTPC::MakeSector(Int_t isec,Int_t nrows,TTree *TH,
 	continue; 
       }
 
+      // Remove hits which arrive before the TPC opening gate signal
+      if(((fTPCParam->GetZLength()-TMath::Abs(tpcHit->Z()))
+	  /fTPCParam->GetDriftV()+tpcHit->Time())<fTPCParam->GetGateDelay()) {
+	tpcHit = (AliTPChit*) NextHit();
+	continue;
+      }
+
       currentTrack = tpcHit->Track(); // track number
 
       if(currentTrack != previousTrack){
-- 
2.39.3