Table II.

Comparison field size correction factors for two types of diode detectors measured at TSD of 100 cm.

	6‐MVCF		18‐MV CF
Field size $(\text{cm}\times \text{cm})$	QED	ISORAD	QED	ISORAD
$4\times 4$	0.99	0.99	0.97	0.95
$5\times 5$	1.00	1.00	0.98	0.96
$6\times 6$	1.00	1.00	0.99	0.97
$8\times 8$	1.00	1.00	1.00	0.99
$10\times 10$	1.00	1.00	1.00	1.00
$12\times 12$	1.01	1.00	1.01	1.01
$15\times 15$	1.02	1.01	1.02	1.02
$20\times 20$	1.02	1.01	1.03	1.04
$25\times 25$	1.02	1.02	1.03	1.04
$30\times 30$	1.02	1.02	1.03	1.06
$40\times 40$	1.02	1.02	1.04	1.06