This calculation by XCOM was performed for an energy range of 10 – 1000 keV.

Constituents (Atomic Number: Fraction by Weight)

 Z=6	: 0.240183
 Z=9	: 0.759817

Edge	(required) Photon Energy	Scattering		Photoelectric Absorption	Pair Production		Total Attenuation
	(required) Photon Energy	Coherent	Incoherent	Photoelectric Absorption	In Nuclear Field	In Electron Field	With Coherent Scattering	Without Coherent Scattering
	MeV	cm²/g	cm²/g	cm²/g	cm²/g	cm²/g	cm²/g	cm²/g
	1.000E-02	2.71E-01	1.22E-01	6.41E+00	0.00E+00	0.00E+00	6.81E+00	6.53E+00
	1.100E-02	2.38E-01	1.27E-01	4.76E+00	0.00E+00	0.00E+00	5.13E+00	4.89E+00
	1.200E-02	2.12E-01	1.31E-01	3.63E+00	0.00E+00	0.00E+00	3.97E+00	3.76E+00
	1.300E-02	1.90E-01	1.34E-01	2.82E+00	0.00E+00	0.00E+00	3.14E+00	2.95E+00
	1.400E-02	1.71E-01	1.36E-01	2.23E+00	0.00E+00	0.00E+00	2.54E+00	2.37E+00
	1.500E-02	1.55E-01	1.39E-01	1.79E+00	0.00E+00	0.00E+00	2.09E+00	1.93E+00
	1.600E-02	1.42E-01	1.41E-01	1.46E+00	0.00E+00	0.00E+00	1.74E+00	1.60E+00
	1.700E-02	1.30E-01	1.43E-01	1.21E+00	0.00E+00	0.00E+00	1.48E+00	1.35E+00
	1.800E-02	1.20E-01	1.44E-01	1.00E+00	0.00E+00	0.00E+00	1.27E+00	1.15E+00
	1.900E-02	1.11E-01	1.46E-01	8.45E-01	0.00E+00	0.00E+00	1.10E+00	9.91E-01
	2.000E-02	1.03E-01	1.47E-01	7.17E-01	0.00E+00	0.00E+00	9.67E-01	8.64E-01
	2.200E-02	8.88E-02	1.49E-01	5.28E-01	0.00E+00	0.00E+00	7.66E-01	6.77E-01
	2.400E-02	7.77E-02	1.51E-01	3.99E-01	0.00E+00	0.00E+00	6.28E-01	5.50E-01
	2.600E-02	6.85E-02	1.53E-01	3.08E-01	0.00E+00	0.00E+00	5.29E-01	4.61E-01
	2.800E-02	6.08E-02	1.54E-01	2.42E-01	0.00E+00	0.00E+00	4.57E-01	3.96E-01
	3.000E-02	5.43E-02	1.54E-01	1.94E-01	0.00E+00	0.00E+00	4.02E-01	3.48E-01
	3.200E-02	4.88E-02	1.55E-01	1.57E-01	0.00E+00	0.00E+00	3.61E-01	3.12E-01
	3.400E-02	4.41E-02	1.55E-01	1.29E-01	0.00E+00	0.00E+00	3.28E-01	2.84E-01
	3.600E-02	4.00E-02	1.55E-01	1.07E-01	0.00E+00	0.00E+00	3.03E-01	2.63E-01
	3.800E-02	3.65E-02	1.56E-01	8.97E-02	0.00E+00	0.00E+00	2.82E-01	2.45E-01
	4.000E-02	3.34E-02	1.55E-01	7.59E-02	0.00E+00	0.00E+00	2.65E-01	2.31E-01
	4.200E-02	3.06E-02	1.55E-01	6.47E-02	0.00E+00	0.00E+00	2.51E-01	2.20E-01
	4.400E-02	2.82E-02	1.55E-01	5.56E-02	0.00E+00	0.00E+00	2.39E-01	2.11E-01
	4.600E-02	2.61E-02	1.55E-01	4.81E-02	0.00E+00	0.00E+00	2.29E-01	2.03E-01
	4.800E-02	2.42E-02	1.55E-01	4.18E-02	0.00E+00	0.00E+00	2.21E-01	1.96E-01
	5.000E-02	2.25E-02	1.54E-01	3.66E-02	0.00E+00	0.00E+00	2.13E-01	1.91E-01
	5.200E-02	2.09E-02	1.54E-01	3.21E-02	0.00E+00	0.00E+00	2.07E-01	1.86E-01
	5.400E-02	1.96E-02	1.53E-01	2.84E-02	0.00E+00	0.00E+00	2.01E-01	1.82E-01
	5.600E-02	1.83E-02	1.53E-01	2.52E-02	0.00E+00	0.00E+00	1.96E-01	1.78E-01
	5.800E-02	1.72E-02	1.52E-01	2.24E-02	0.00E+00	0.00E+00	1.92E-01	1.75E-01
	6.000E-02	1.62E-02	1.52E-01	2.01E-02	0.00E+00	0.00E+00	1.88E-01	1.72E-01
	6.400E-02	1.44E-02	1.51E-01	1.62E-02	0.00E+00	0.00E+00	1.81E-01	1.67E-01
	6.800E-02	1.28E-02	1.49E-01	1.33E-02	0.00E+00	0.00E+00	1.76E-01	1.63E-01
	7.200E-02	1.15E-02	1.48E-01	1.10E-02	0.00E+00	0.00E+00	1.71E-01	1.59E-01
	7.600E-02	1.04E-02	1.47E-01	9.22E-03	0.00E+00	0.00E+00	1.67E-01	1.56E-01
	8.000E-02	9.49E-03	1.46E-01	7.79E-03	0.00E+00	0.00E+00	1.63E-01	1.54E-01
	8.400E-02	8.66E-03	1.45E-01	6.63E-03	0.00E+00	0.00E+00	1.60E-01	1.51E-01
	8.800E-02	7.93E-03	1.44E-01	5.69E-03	0.00E+00	0.00E+00	1.57E-01	1.49E-01
	9.200E-02	7.29E-03	1.42E-01	4.92E-03	0.00E+00	0.00E+00	1.55E-01	1.47E-01
	9.600E-02	6.72E-03	1.41E-01	4.27E-03	0.00E+00	0.00E+00	1.52E-01	1.46E-01
	1.000E-01	6.22E-03	1.40E-01	3.74E-03	0.00E+00	0.00E+00	1.50E-01	1.44E-01
	1.100E-01	5.18E-03	1.37E-01	2.73E-03	0.00E+00	0.00E+00	1.45E-01	1.40E-01
	1.200E-01	4.39E-03	1.35E-01	2.06E-03	0.00E+00	0.00E+00	1.41E-01	1.37E-01
	1.300E-01	3.76E-03	1.32E-01	1.58E-03	0.00E+00	0.00E+00	1.37E-01	1.34E-01
	1.400E-01	3.25E-03	1.29E-01	1.24E-03	0.00E+00	0.00E+00	1.34E-01	1.31E-01
	1.500E-01	2.84E-03	1.27E-01	9.93E-04	0.00E+00	0.00E+00	1.31E-01	1.28E-01
	1.600E-01	2.51E-03	1.25E-01	8.06E-04	0.00E+00	0.00E+00	1.28E-01	1.26E-01
	1.700E-01	2.23E-03	1.23E-01	6.62E-04	0.00E+00	0.00E+00	1.26E-01	1.23E-01
	1.800E-01	1.99E-03	1.21E-01	5.51E-04	0.00E+00	0.00E+00	1.23E-01	1.21E-01
	1.900E-01	1.79E-03	1.19E-01	4.63E-04	0.00E+00	0.00E+00	1.21E-01	1.19E-01
	2.000E-01	1.62E-03	1.17E-01	3.93E-04	0.00E+00	0.00E+00	1.19E-01	1.17E-01
	2.200E-01	1.34E-03	1.13E-01	2.91E-04	0.00E+00	0.00E+00	1.15E-01	1.14E-01
	2.400E-01	1.13E-03	1.10E-01	2.21E-04	0.00E+00	0.00E+00	1.12E-01	1.10E-01
	2.600E-01	9.63E-04	1.07E-01	1.73E-04	0.00E+00	0.00E+00	1.08E-01	1.07E-01
	2.800E-01	8.31E-04	1.04E-01	1.37E-04	0.00E+00	0.00E+00	1.05E-01	1.05E-01
	3.000E-01	7.25E-04	1.02E-01	1.11E-04	0.00E+00	0.00E+00	1.03E-01	1.02E-01
	3.200E-01	6.38E-04	9.95E-02	9.18E-05	0.00E+00	0.00E+00	1.00E-01	9.96E-02
	3.400E-01	5.65E-04	9.73E-02	7.67E-05	0.00E+00	0.00E+00	9.79E-02	9.74E-02
	3.600E-01	5.05E-04	9.52E-02	6.48E-05	0.00E+00	0.00E+00	9.58E-02	9.53E-02
	3.800E-01	4.53E-04	9.33E-02	5.54E-05	0.00E+00	0.00E+00	9.38E-02	9.33E-02
	4.000E-01	4.09E-04	9.14E-02	4.78E-05	0.00E+00	0.00E+00	9.19E-02	9.15E-02
	4.200E-01	3.71E-04	8.97E-02	4.16E-05	0.00E+00	0.00E+00	9.01E-02	8.97E-02
	4.400E-01	3.38E-04	8.80E-02	3.65E-05	0.00E+00	0.00E+00	8.84E-02	8.80E-02
	4.600E-01	3.10E-04	8.64E-02	3.23E-05	0.00E+00	0.00E+00	8.68E-02	8.65E-02
	4.800E-01	2.84E-04	8.49E-02	2.88E-05	0.00E+00	0.00E+00	8.53E-02	8.50E-02
	5.000E-01	2.62E-04	8.35E-02	2.58E-05	0.00E+00	0.00E+00	8.38E-02	8.35E-02
	5.200E-01	2.42E-04	8.22E-02	2.32E-05	0.00E+00	0.00E+00	8.24E-02	8.22E-02
	5.400E-01	2.25E-04	8.09E-02	2.11E-05	0.00E+00	0.00E+00	8.11E-02	8.09E-02
	5.600E-01	2.09E-04	7.96E-02	1.92E-05	0.00E+00	0.00E+00	7.98E-02	7.96E-02
	5.800E-01	1.95E-04	7.84E-02	1.75E-05	0.00E+00	0.00E+00	7.86E-02	7.84E-02
	6.000E-01	1.82E-04	7.73E-02	1.61E-05	0.00E+00	0.00E+00	7.75E-02	7.73E-02
	8.000E-01	1.03E-04	6.79E-02	8.11E-06	0.00E+00	0.00E+00	6.80E-02	6.79E-02
	1.000E+00	6.57E-05	6.11E-02	5.04E-06	0.00E+00	0.00E+00	6.11E-02	6.11E-02

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