From 494d17df087bae201ffc2885e10c111739d54d02 Mon Sep 17 00:00:00 2001
From: Grzegorz Gach <grzegorz.gach@cern.ch>
Date: Tue, 14 Nov 2017 10:36:07 +0100
Subject: [PATCH] Updated documentation about pulse length of AFP
 time-of-flight detector.

---
 Event/xAOD/xAODForward/xAODForward/versions/AFPToFHit_v1.h | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/Event/xAOD/xAODForward/xAODForward/versions/AFPToFHit_v1.h b/Event/xAOD/xAODForward/xAODForward/versions/AFPToFHit_v1.h
index ba6dd59fca7..bbbbc3f7b01 100644
--- a/Event/xAOD/xAODForward/xAODForward/versions/AFPToFHit_v1.h
+++ b/Event/xAOD/xAODForward/xAODForward/versions/AFPToFHit_v1.h
@@ -64,8 +64,10 @@ namespace xAOD {
     /// @brief Lenght of the signal pulse which is proportional to the signal
     /// amplitude
     ///
-    /// The returned value is roughly lenght of the signal above
-    /// threshold expressed in nanoseconds.
+    /// The returned value is lenght of the signal above
+    /// threshold expressed in nanoseconds. Available values should be
+    /// multiples of 0.521. Pulse lenght of 1 nanosecond corresponds
+    /// roughtly to signal of about 67 mV.
     float pulseLength() const;
 
     void setPulseLength(float pulseLength);
-- 
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