Table 1. Number of lattice points (N _L) that are required for the nth secondary maxima along the [100], [110] and [111] directions to be above the noise level.

The calculations have been performed for two energies (E = 12.4 and 30.0 keV) and using the differential scattering cross sections for 45° scattering angle, for carbon (C) and palladium (Pd).

	N L
	[100]		[110]		[111]
Maximum order	C	Pd	C	Pd	C	Pd
Energy = 12.4 keV
1	7	0	2.100 × 101	1.000 × 100	6.400 × 101	3.000 × 100
2	107	5	6.285 × 103	2.960 × 102	3.894 × 105	1.812 × 104
3	403	20	9.522 × 104	4.440 × 103	2.316 × 107	1.077 × 106
4	977	47	5.721 × 105	2.662 × 104	3.417 × 108	1.588 × 107
5	1898	90	2.185 × 106	1.016 × 105	2.552 × 109	1.186 × 108
6	3230	153	6.370 × 106	2.961 × 105	1.271 × 1010	5.906 × 108
7	5030	237	1.552 × 107	7.217 × 105	4.836 × 1010	2.247 × 109
8	7355	346	3.330 × 107	1.548 × 106	1.519 × 1011	7.061 × 109
9	10257	481	6.492 × 107	3.017 × 106	4.135 × 1011	1.922 × 1010
10	13786	646	1.175 × 108	5.460 × 106	1.007 × 1012	4.679 × 1010
Energy = 30.0 keV
1	14	1	4.300 × 101	3.000 × 100	1.360 × 102	8.000 × 100
2	227	13	1.368 × 104	7.540 × 102	8.502 × 105	4.664 × 104
3	869	49	2.078 × 105	1.141 × 104	5.059 × 107	2.774 × 106
4	2116	117	1.249 × 106	6.853 × 104	7.465 × 108	4.093 × 107
5	4121	228	4.772 × 106	2.617 × 105	5.574 × 109	3.056 × 108
6	7022	387	1.391 × 107	7.630 × 105	2.776 × 1010	1.522 × 109
7	10947	603	3.391 × 107	1.859 × 106	1.056 × 1011	5.792 × 109
8	16018	882	7.274 × 107	3.989 × 106	3.319 × 1011	1.820 × 1010
9	22348	1230	1.418 × 108	7.775 × 106	9.033 × 1011	4.953 × 1010
10	30047	1653	2.566 × 108	1.407 × 107	2.199 × 1012	1.206 × 1011