From efc519c325358a12236458fc355dbc520083df9c Mon Sep 17 00:00:00 2001
From: Kris Thielemans <k.thielemans@ucl.ac.uk>
Date: Tue, 30 Jul 2024 07:14:21 +0100
Subject: [PATCH] fix ScatterEstimation when no randoms

fixing an oversight
---
 src/scatter_buildblock/ScatterEstimation.cxx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/scatter_buildblock/ScatterEstimation.cxx b/src/scatter_buildblock/ScatterEstimation.cxx
index c157f4af8..3ceb4cf1d 100644
--- a/src/scatter_buildblock/ScatterEstimation.cxx
+++ b/src/scatter_buildblock/ScatterEstimation.cxx
@@ -716,7 +716,7 @@ ScatterEstimation::set_up_iterative(shared_ptr<IterativeReconstruction<Discretis
         this->multiplicative_binnorm_2d_sptr.reset(new ChainedBinNormalisation(norm_coeff_2d_sptr, atten_coeff_2d_sptr));
 
         this->multiplicative_binnorm_2d_sptr->set_up(
-            this->back_projdata_sptr->get_exam_info_sptr(),
+            this->input_projdata_2d_sptr->get_exam_info_sptr(),
             this->input_projdata_2d_sptr->get_proj_data_info_sptr()->create_shared_clone());
         iterative_object->get_objective_function_sptr()->set_normalisation_sptr(multiplicative_binnorm_2d_sptr);
       }