diff --git a/include/B1Hits.hh b/include/B1Hits.hh
new file mode 100644
index 0000000000000000000000000000000000000000..8f1b2c2412fff9cff5bc97d94bdc94c155897866
--- /dev/null
+++ b/include/B1Hits.hh
@@ -0,0 +1,16 @@
+#include "G4VHit.hh"
+#include "G4Allocator.hh"
+#include "G4THitsCollection.hh"
+#include "G4Step.hh"
+
+class B1Hits: public G4VHit {
+
+public:
+  B1Hits();
+  ~B1Hits();
+
+  void print();
+  G4int get_track(G4Step* step);
+};
+
+typedef G4THitsCollection<B1Hits> B1HitsCollection;
diff --git a/src/B1Hits.cc b/src/B1Hits.cc
new file mode 100644
index 0000000000000000000000000000000000000000..41a42c993030e548af498769fe22d06c02d4682c
--- /dev/null
+++ b/src/B1Hits.cc
@@ -0,0 +1,24 @@
+#include "B1Hits.hh"
+
+#include "G4VVisManager.hh"
+#include "G4VisAttributes.hh"
+#include "G4Circle.hh"
+#include "G4Colour.hh"
+#include "G4AttDefStore.hh"
+#include "G4AttDef.hh"
+#include "G4AttValue.hh"
+#include "G4UIcommand.hh"
+#include "G4UnitsTable.hh"
+#include "G4SystemOfUnits.hh"
+#include "G4ios.hh"
+
+B1Hits::B1Hits() {
+
+}
+B1Hits::~B1Hits() {
+
+}
+
+G4int B1Hits::get_track(G4Step* step) {
+  return step->GetTrack()->GetTrackID();
+}