International
Tables for
Crystallography
Volume G
Definition and exchange of crystallographic data
Edited by S. R. Hall and B. McMahon

International Tables for Crystallography (2006). Vol. G, ch. 5.6, pp. 552-554

Section 5.6.4. Sample templates

P. J. Ellisa and H. J. Bernsteinb*

aStanford Linear Accelerator Center, 2575 Sand Hill Road, Menlo Park, CA 94025, USA, and bDepartment of Mathematics and Computer Science, Kramer Science Center, Dowling College, Idle Hour Blvd, Oakdale, NY 11769, USA
Correspondence e-mail:  yaya@bernstein-plus-sons.com

5.6.4. Sample templates

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The construction of CBF/imgCIF files can be simplified using templates. A template is itself an imgCIF file populated with data entries but without any binary sections. This file is normally associated with a CBF handle using the cbf_read_template call and provides a framework into which images and other experiment-specific data may be entered.

Fig. 5.6.4.1[link] is a sample template for an ADSC Quantum 4 detector (ADSC, 1997[link]) with a κ-geometry diffractometer at Stanford Synchrotron Radiation Laboratory (SSRL) beamline 1–5.

[Figure 5.6.4.1]

Figure 5.6.4.1 | top | pdf |

Template imgCIF for use with an ADSC Quantum 4 detector.

The template for a MAR345 image plate detector (MAR Research, 1997[link]) is almost identical. The major differences are in the size of the array (2300 × 2300 versus 2304 × 2304), the parameters for the CCD elements and the geometry of the elements. Therefore a few of the values in the AXIS, ARRAY_STRUCTURE_LIST, ARRAY_STRUCTURE_LIST_AXIS and ARRAY_INTENSITIES categories are different, as listed in Fig. 5.6.4.2[link].

[Figure 5.6.4.2]

Figure 5.6.4.2 | top | pdf |

Part of the template file for a MAR345 detector. Values that differ from those in Fig. 5.6.4.1[link] are underlined.

References

ADSC (1997). Quantum 4R specifications. Poway, CA, USA: Area Detector Systems Corporation. http://www.adsc-xray.com/Q4techspecs.html .
MAR Research (1997). The mar345 image plate detector. Norderstedt: MAR Research GmbH. http://www.marresearch.com/products.mar345.html .








































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