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+********EXAMPLE 7
+* MAP EM ALGORITHM FOR EMISSION TOMOGRAPHY. RECONSTRUCTION OF BRAIN
+* PHANTOM. SIMULATING PET GEOMETRY WITH A RING OF 300 DETECTORS WITH
+* EACH DETECTOR IN COINCIDENCE WITH 101 DETECTORS OPPOSITE IT.
+* COEFFICIENT OF PENALTLY TERM IS SET TO 10.0
+*
+CREATE
+EXAMPLE 7 Brain Phantom
+SPECTRUM MONOCHROMATIC 511
+OBJECTS
+ 1 elip -7.0 46.0 3.0 6.0 17.0 0.95 1.0
+ 2 elip 7.0 46.0 3.0 6.0 -17.0 1.0 0.95
+ 3 rect -12.0 64.0 7.5 4.5 5.0 1.0 1.0
+ 4 rect 12.0 64.0 7.5 4.5 -5.0 0.95 0.95
+ 5 rect -38.0 51.0 3.5 13.0 -39.0 0.95 1.0
+ 6 rect 38.0 51.0 3.5 13.0 39.0 1.0 0.95
+ 7 rect -46.0 24.0 6.5 6.0 -18.0 0.95 1.0
+ 8 rect 46.0 24.0 6.5 6.0 18.0 1.0 0.95
+ 9 rect -49.0 6.0 2.5 10.0 63.0 1.0 1.0
+ 10 rect 49.0 6.0 2.5 10.0 -63.0 0.95 0.95
+ 11 rect -52.0 -14.0 9.0 7.0 -14.0 0.95 1.0
+ 12 rect 52.0 -14.0 9.0 7.0 14.0 1.0 0.95
+ 13 rect -10.0 -56.0 5.5 10.0 -1.0 0.95 1.0
+ 14 rect 10.0 -56.0 5.5 10.0 1.0 1.0 0.95
+ 15 elip -40.0 -47.0 9.0 22.5 48.0 1.0 1.0
+ 16 elip 40.0 -47.0 9.0 22.5 -48.0 0.95 0.95
+ 17 elip -8.0 -22.0 3.5 15.5 -9.0 1.0 1.0
+ 18 elip 8.0 -22.0 3.5 15.5 9.0 0.95 0.95
+ 19 elip -27.0 -6.0 5.5 23.5 -5.0 0.95 1.0
+ 20 elip 27.0 -6.0 5.5 23.5 5.0 1.0 0.95
+ 21 elip -25.0 38.0 6.5 10.5 -14.0 1.0 1.0
+ 22 elip 25.0 38.0 6.5 10.5 14.0 0.95 0.95
+ 23 rect -8.0 32.0 1.5 6.5 38.0 1.0 1.0
+ 24 rect 8.0 32.0 1.5 6.5 -38.0 0.95 0.95
+ 25 rect -8.0 3.0 1.0 9.0 -33.0 0.95 1.0
+ 26 rect 8.0 3.0 1.0 9.0 33.0 1.0 0.95
+ 27 elip 0.0 0.0 66.5 74.0 0.0 1.0 1.0
+LAST .51 1 0.05
+PHANTOM AVERAGE 7
+95 PIXELS OF SIZE 1.6
+RAYSUM AVERAGE 1
+1
+GEOMETRY
+divergent arc 153 306
+RAYS USER 101 DETECTOR SPACING 3.2
+ANGLES 300 EQUAL SPACING
+0.0 358.8
+MEASUREMENT PERFECT
+BACKGROUND 0.0
+RUN
+*
+PICTURE TEST
+*
+PROJECTION REAL
+*
+STOP ITERATION 20
+*
+EXECUTE AVERAGE EMAP
+Example 7 Illustrating the MAP EM algorithm for PET
+gamma is 10.0 EVAL
+*
+END