Thickness Vs. for 662 KeV.

Table 1: Thickness Vs. $l n \frac{I_{o}}{I}$ for 662 KeV.

I_o= 59488
Source	Energy in KeV	Absorber	Thickness in cm	I	IoI	$l n \frac{I_{o}}{I}$
¹³²Cs	662	Zinc	0.04	57595	1.03287	0.0323
			0.08	55944	1.0633	0.06142
			0.12	54277	1.0960	0.0916