1 files changed, 1 insertions, 0 deletions
diff --git a/TODO b/TODO
index 4217b41..2ccd95d 100644
--- a/TODO
+++ b/TODO
@@ -28,3 +28,4 @@
 - once the first position is found, compute the Hough transform to look for
   other rings
 - add rayleigh scattering to likelihood function
+- add muon shower PDF? delta rays?