Table 2.

Average DOI error (standard deviation in mm) of the calibrated depths compared with known depths for all crystals for each of the eight detector arrays of the prototype scanner

Depth (mm)	2		10		18
	Crystal	Detector	Crystal	Detector	Crystal	Detector
Detector 1	0.39	0.97	0.66	0.76	0.43	1.09
Detector 2	0.52	1.29	0.49	0.35	0.73	0.89
Detector 3	0.70	1.21	0.50	0.37	0.39	0.73
Detector 4	0.60	1.26	0.57	0.53	0.31	0.98
Detector 5	0.47	1.36	0.47	0.46	0.23	0.99
Detector 6	0.20	0.67	0.21	0.18	0.37	0.42
Detector 7	0.44	0.71	0.60	0.71	0.37	0.79
Detector 8	0.43	1.43	0.81	1.35	0.53	1.02
Average	0.47	1.11	0.54	0.59	0.42	0.86