From 3c5761ec206d2ab116a85780ebde5d0ff37b76a9 Mon Sep 17 00:00:00 2001
From: Yessica Dominguez <yessicadomin@gmail.com>
Date: Tue, 15 Aug 2023 01:39:01 +0000
Subject: [PATCH] Update stepping.cc

---
 CODE/stepping.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/CODE/stepping.cc b/CODE/stepping.cc
index 8353db3..836a18c 100644
--- a/CODE/stepping.cc
+++ b/CODE/stepping.cc
@@ -18,7 +18,7 @@ void MySteppingAction :: UserSteppingAction(const G4Step* step)
         
         G4ThreeVector position = step->GetPreStepPoint()->GetPosition();
 //////// He cambiado el signo 
-        G4double distanceThreshold = 400.*m;  // Punto de deteccion, debe coincidir con la interfaz de las capas de la atmosfera (-1600 (sea level) ,-1200,-800,-400,0,400,800,1200,1600,2000)
+        G4double distanceThreshold = -1200.*m;  // Punto de deteccion, debe coincidir con la interfaz de las capas de la atmosfera (-1600 (sea level),-1200,-800,-400,0,400,800,1200,1600)
 
         // Verifica si la distancia recorrida supera el umbral
         if (position.z() == distanceThreshold)
-- 
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