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-rw-r--r--src/peaks.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/src/peaks.c b/src/peaks.c
index 3d90861b..f1a58d23 100644
--- a/src/peaks.c
+++ b/src/peaks.c
@@ -157,7 +157,15 @@ int integrate_peak(struct image *image, int cfs, int css,
int pixel_counts = 0;
double noise_mean = 0.0;
double noise_meansq = 0.0;
- const double aduph = image->beam->adu_per_photon;
+ struct beam_params *beam;
+ double aduph;
+
+ beam = image->beam;
+ if ( beam != NULL ) {
+ aduph = image->beam->adu_per_photon;
+ } else {
+ aduph = 1.0;
+ }
p = find_panel(image->det, cfs, css);
if ( p == NULL ) return 1;