Table 1.

Summary of test cases, all fields with a source‐to‐surface distance (SSD) setup

Test case	SSD (cm)	Gantry angle	Field sizes (degrees)	Beam modifier (cm)
1. Open square fields a	100	0	52, 102, 252	None
2. Extended SSD square fields b	125	0	82, 202	None
3. Rectangular fields	100	0	$5\times 25$, $25\times 5$	None
4a. Wedged square fields c	100	0	62, 202, 152	45 degrees, 60 degrees
4b. Open and wedged with 45‐degree collimator	100	0	202	None, 45 degrees
5. Cerrobend‐blocked d mantle field	100	0	302	Block (Fig. 1)
6. Isocentric, $10\times 10$ cm at surface	6 MV: 90 15 MV: 80	0	11.12 12.52	None
7. Oblique incidence	100	305, 330	102	None
8. Asymmetric half‐beam, e open and wedged	100	0	10:10, 10:0	None, $+45$ degrees
9. Oblique incidence, 45‐degree wedge	100	315	102	Wedge
10. Multileaf collimator (MLC)	100	0	Triangle (Fig. 2)	MLC
11. CIRS phantom f and pinpoint chamber (CCI)	100	0	$26\times 14$	None
12. Rando phantom, g with thermoluminescent dosimeter (TBCC)	100	Thorax: 0 Neck: 270	$12\times 20$	None $10\times 16$

^aAt CCI, $10\times 10$ cm only.

^bField defined at 100 cm.

^cField $15\times 15$ cm with 60‐degree wedge only.

^dCerro Copper and Brass Company, Belfonte, PA.

^eJaw defined half‐beam collimation.

^fCIRS, Norfolk, VA.

^gThe Phantom Laboratory, Salem, NY.

$\text{CCI}=\text{Cross}\hspace{0.17em}\text{Cancer}\hspace{0.17em}\text{Institute}$; $\text{TBCC}=\text{Tom}\hspace{0.17em}\text{Baker}\hspace{0.17em}\text{Cancer}\hspace{0.17em}\text{Centre}$.