TABLE I.

The –3 dB axial and azimuthal beam widths for the apodizations $A_{\text{Cos}}$ and $A_{\text{NormCos}}$. Results are shown for beamforming the fundamental (Fund), subharmonic (SH), and inharmonic (IH) frequency bands at three different azimuth cavitation locations.

		Center			Upstream			Downstream
		Fund	SH	IH	Fund	SH	IH	Fund	SH	IH
Azimuth (mm)	$A_{\text{Cos}}$	0.53	0.61	0.46	0.69	0.61	0.53	0.61	0.69	0.53
	$A_{\text{NormCos}}$	0.31	0.53	0.38	0.61	0.69	0.53	0.46	0.69	0.53
Axial (mm)	$A_{\text{Cos}}$	9.16	6.28	5.23	11.52	3.66	3.14	10.99	4.71	3.93
	$A_{\text{NormCos}}$	6.02	5.50	4.45	8.38	3.14	2.09	7.59	3.66	2.88