diff -r 68fe515ea38f -r 97e9c745a000 src/PET/PET.jl
--- a/src/PET/PET.jl	Fri Apr 19 16:34:59 2024 -0500
+++ b/src/PET/PET.jl	Sat Apr 20 12:31:37 2024 +0300
@@ -105,7 +105,7 @@
     rotation_noise_level = 0.0025,          
     α = 1.0,
     ρ̃₀ = 1.0,
-    σ̃₀ = 0.0001,
+    σ̃₀ = 1.0,
     δ = 0.9,
     σ₀ = 0.5,
     τ₀ = 0.9,