, 2009 ?), a reasonable compromise between an adequate scattered signal and excessive multiple scattering. We compare measurements when the scattering plane is normal to the unique axis with those when the scattering plane includes the unique axis. In the case of geological samples, the unique axis is perpendicular to the plane of bedding. Measurements have therefore
been taken on thin sections of rock that have been sectioned both parallel to and normal to the bedding plane (see Fig. 1 ?). We assume that both cuts are Thymidine kinase representative of the particular rock system. Each sample was fixed onto a quartz glass slide of thickness 1?mm with negligible scattering, which was itself attached to a gadolinium aperture of diameter 12.7 or 6.35?mm, depending on the size of the sample. Though these sections had a nominal thickness of 150??m, MK-8776 molecular weight micrometer measurements indicated that the cut parallel to the bedding was 299??m thick (within 10??m), and the cut perpendicular to the bedding was 238??m thick. Figure 1 A schematic diagram indicating the planes of the two cuts, one parallel and the other perpendicular to the plane of bedding of the sample rock. The unique axis is the normal to the bedding plane. For each orientation of the sample, the
scattered neutron ... The SANS measurements were performed on the pinhole SANS instrument NG3 (Glinka et al., 1998 ?) at the NIST Center for Neutron Research (NCNR) in three different configurations, with ����/�� ? 12% and sample-to-detector distances of 1 and 4?m using 6?? neutrons, and of 13?m. The last configuration used MgF2 lenses in order to extend the measurable range of the scattering vector (Choi et al., 2000 ?) and a wavelength �� = 8.09??, to enable Q = 1 �� 10?3???1 to be reached for an overlap with the USANS range. Measurements were taken on both the parallel- and perpendicular-cut samples, and also with the perpendicular-cut sample rotated continuously in the beam. Labeled in Fig. 1 ? are the three principal directions of the sample, X and Y within the bedding plane, and Z the
normal to the plane. After background subtraction using a clean quartz slide measurement, the data for the parallel-cut sample buy Quizartinib were averaged azimuthally to produce I(Q). Sector averaging over azimuthal angles ���� ? 30�� is necessary for the perpendicular-cut measurement (averaging using ���� ? 15�� with fewer pixels results in noisier data). Similar USANS measurements were performed on the double-crystal instrument BT5 (Barker et al., 2005 ?) at the NCNR using a wavelength �� = 2.38?? with ����/�� = 5.9%. The double-crystal arrangement has an instrumental (full width at half-maximum) resolution of 2 �� 10?5???1 in the horizontal direction, with a Q range of 3 �� 10?5 < Q < 3 �� 10?3???1, and with a relaxed resolution in the vertical y direction (��?0.117???1).
been taken on thin sections of rock that have been sectioned both parallel to and normal to the bedding plane (see Fig. 1 ?). We assume that both cuts are Thymidine kinase representative of the particular rock system. Each sample was fixed onto a quartz glass slide of thickness 1?mm with negligible scattering, which was itself attached to a gadolinium aperture of diameter 12.7 or 6.35?mm, depending on the size of the sample. Though these sections had a nominal thickness of 150??m, MK-8776 molecular weight micrometer measurements indicated that the cut parallel to the bedding was 299??m thick (within 10??m), and the cut perpendicular to the bedding was 238??m thick. Figure 1 A schematic diagram indicating the planes of the two cuts, one parallel and the other perpendicular to the plane of bedding of the sample rock. The unique axis is the normal to the bedding plane. For each orientation of the sample, the
scattered neutron ... The SANS measurements were performed on the pinhole SANS instrument NG3 (Glinka et al., 1998 ?) at the NIST Center for Neutron Research (NCNR) in three different configurations, with ����/�� ? 12% and sample-to-detector distances of 1 and 4?m using 6?? neutrons, and of 13?m. The last configuration used MgF2 lenses in order to extend the measurable range of the scattering vector (Choi et al., 2000 ?) and a wavelength �� = 8.09??, to enable Q = 1 �� 10?3???1 to be reached for an overlap with the USANS range. Measurements were taken on both the parallel- and perpendicular-cut samples, and also with the perpendicular-cut sample rotated continuously in the beam. Labeled in Fig. 1 ? are the three principal directions of the sample, X and Y within the bedding plane, and Z the
normal to the plane. After background subtraction using a clean quartz slide measurement, the data for the parallel-cut sample buy Quizartinib were averaged azimuthally to produce I(Q). Sector averaging over azimuthal angles ���� ? 30�� is necessary for the perpendicular-cut measurement (averaging using ���� ? 15�� with fewer pixels results in noisier data). Similar USANS measurements were performed on the double-crystal instrument BT5 (Barker et al., 2005 ?) at the NCNR using a wavelength �� = 2.38?? with ����/�� = 5.9%. The double-crystal arrangement has an instrumental (full width at half-maximum) resolution of 2 �� 10?5???1 in the horizontal direction, with a Q range of 3 �� 10?5 < Q < 3 �� 10?3???1, and with a relaxed resolution in the vertical y direction (��?0.117???1).