The benefits of one-dimensional detectors for high-pressure powder X-ray diffraction

Fisch, Martin; Lanza, Arianna; Macchi, Piero; Casati, Nicola (2015). The benefits of one-dimensional detectors for high-pressure powder X-ray diffraction. Journal of applied crystallography, 48(6), pp. 1956-1963. Blackwell 10.1107/S1600576715020865

[img]
Preview
Text
S1600576715020865.pdf - Published Version
Available under License Publisher holds Copyright.

Download (2MB) | Preview
[img]
Preview
Text
Manuscript_accepted.pdf - Accepted Version
Available under License Publisher holds Copyright.

Download (106kB) | Preview

High-pressure powder X-ray diffraction is a fundamental technique for investigating structural responses to externally applied force. Synchrotron sources and two-dimensional detectors are required. In contrast to this conventional setup, high-resolution beamlines equipped with one-dimensional detectors could offer much better resolved peaks but cannot deliver accurate structure factors because they only sample a small portion of the Debye rings, which are usually inhomogeneous and spotty because of the small amount of sample. In this study, a simple method to overcome this problem is presented and successfully applied to solving the structure of an L-serine polymorph from powder data. A comparison of the obtained high-resolution high-pressure data with conventional data shows that this technique, providing up to ten times better angular resolution, can be of advantage for indexing, for lattice parameter refinement, and even for structure refinement and solution in special cases.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Departement of Chemistry and Biochemistry

UniBE Contributor:

Fisch, Martin; Lanza, Arianna and Macchi, Piero

Subjects:

500 Science > 570 Life sciences; biology
500 Science > 540 Chemistry

ISSN:

0021-8898

Publisher:

Blackwell

Language:

English

Submitter:

Piero Macchi

Date Deposited:

14 Dec 2015 08:08

Last Modified:

03 Nov 2016 08:58

Publisher DOI:

10.1107/S1600576715020865

BORIS DOI:

10.7892/boris.73593

URI:

https://boris.unibe.ch/id/eprint/73593

Actions (login required)

Edit item Edit item
Provide Feedback