From f971d3b89bea80f335c67346fdccca0bd67d8b49 Mon Sep 17 00:00:00 2001
From: jovoy <50204158+jovoy@users.noreply.github.com>
Date: Thu, 22 Feb 2024 16:44:12 +0100
Subject: [PATCH] Update x_sep description true Wolter

---
 inc/TRestAxionTrueWolterOptics.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/inc/TRestAxionTrueWolterOptics.h b/inc/TRestAxionTrueWolterOptics.h
index 6917f94d..3dfc5ea9 100644
--- a/inc/TRestAxionTrueWolterOptics.h
+++ b/inc/TRestAxionTrueWolterOptics.h
@@ -54,6 +54,8 @@ class TRestAxionTrueWolterOptics : public TRestAxionOptics {
     std::vector<Double_t> fThickness;  //!
 
     /// Distance between mirror stacks in mm. See schematic figure.
+    /// This is here calculated using the functions from 
+    /// https://backend.orbit.dtu.dk/ws/portalfiles/portal/122353510/phdthesis_for_DTU_orbit.pdf.
     std::vector<Double_t> fXSep;  //!
 
     /// The spider structure to be used as an optical opaque mask (common to all planes)