From c3dd8b071ce4d7c489f9f1bbf8bfa80870ff7141 Mon Sep 17 00:00:00 2001
From: Chuck <chuck@cfel-chuck.desy.de>
Date: Wed, 20 Mar 2013 08:25:00 +0100
Subject: fixed error in solid angle calculation

---
 libcrystfel/src/detector.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'libcrystfel/src/detector.c')

diff --git a/libcrystfel/src/detector.c b/libcrystfel/src/detector.c
index 41ebcc9a..37328e5f 100644
--- a/libcrystfel/src/detector.c
+++ b/libcrystfel/src/detector.c
@@ -365,7 +365,7 @@ void record_image(struct image *image, int do_poisson)
 		ys = (x-p->min_fs)*p->fsy + (y-p->min_ss)*p->ssy;
 		rx = (xs + p->cnx) / p->res;
 		ry = (ys + p->cny) / p->res;
-		dsq = sqrt(pow(rx, 2.0) + pow(ry, 2.0));
+		dsq = pow(rx, 2.0) + pow(ry, 2.0);
 
 		/* Projected area of pixel divided by distance squared */
 		sa = proj_area / (dsq + Lsq);
-- 
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