Table 3. Reproducibility of the thermoluminescent dosimeter (TLD) chip measurements based on a 30 cm field of view, 80 kVp and 10 mA.

	Reading 1	Reading 2	Reading 3	SD	Mean	CV
Thyroid midline	3.2	2.63	2.89	0.29	2.91	10%
Thyroid surface	2.42	2.37	2.59	0.12	2.46	5%
Oesophagus	2.76	2.29	2.66	0.25	2.57	10%
Right mandibular body	2.37	2.45	1.70	0.41	2.17	19%
Left mandibular body	1.82	1.81	1.32	0.29	1.65	17%
Right ramus	2.57	2.73	2.11	0.32	2.47	13%
Left ramus	2.60	2.62	2.13	0.28	2.45	11%
Cervical spine	1.79	1.73	1.75	0.03	1.76	2%
Anterior calvarium	2.10	1.63	1.54	0.30	1.76	17%
Posterior calvarium	1.29	1.26	1.38	0.06	1.31	5%
Left calvarium	1.51	2.04	1.98	0.29	1.84	16%
Right parotid gland	2.19	2.43	3.01	0.42	2.54	17%
Left parotid gland	3.07	3.04	3.28	0.13	3.13	4%
Right submandibular gland	2.32	2.29	2.27	0.03	2.29	1%
Left submandibular gland	1.83	2.20	1.98	0.19	2.00	9%
Right sublingual gland	2.40	2.39	2.18	0.12	2.32	5%
Left sublingual gland	2.24	2.31	2.17	0.07	2.24	3%
Neck	2.05	3.05	3.31	0.52	3.47	15%
Cheek	2.78	2.47	2.63	0.16	2.63	6%
Right lens	3.32	3.43	3.58	0.13	3.44	4%
Left lens	3.2	3.23	2.92	0.17	3.12	5%
Pituitary fossa	1.72	1.64	1.52	0.10	1.63	6%
Mid-brain	1.47	1.21	1.58	0.19	1.42	13%
Right orbit	2.29	2.38	2.29	0.05	2.32	2%
Left orbit	1.93	2.44	1.67	0.39	2.01	19%
Mean CV						9%

CV, coefficient of variation.