Details
| Originalsprache | Englisch |
|---|---|
| Aufsatznummer | 035102 |
| Fachzeitschrift | Review of scientific instruments |
| Jahrgang | 90 |
| Ausgabenummer | 3 |
| Publikationsstatus | Veröffentlicht - 1 März 2019 |
| Extern publiziert | Ja |
Abstract
We demonstrate the use of a 3D printed radial collimator in X-ray powder diffraction and surface sensitive grazing incidence X-ray diffraction. We find a significant improvement in the overall signal to background ratio of up to 100 and a suppression of more than a factor 3 · 10 5 for undesirable Bragg reflections generated by the X-ray "transparent" windows of the sample environment. The background reduction and the removal of the high intensity signals from the windows, which limit the detector's dynamic range, enable significantly higher sensitivity in experiments within sample environments such as vacuum chambers and gas- or liquid-cells. Details of the additively manufactured steel collimator geometry, alignment strategies using X-ray fluorescence, and data analysis are also briefly discussed. The flexibility and affordability of 3D prints enable designs optimized for specific detectors and sample environments, without compromising the degrees of freedom of the diffractometer.
ASJC Scopus Sachgebiete
- Physik und Astronomie (insg.)
- Instrumentierung
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in: Review of scientific instruments, Jahrgang 90, Nr. 3, 035102, 01.03.2019.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - A novel 3D printed radial collimator for x-ray diffraction
AU - Kowarik, S.
AU - Bogula, L.
AU - Boitano, S.
AU - Carlà, F.
AU - Pithan, H.
AU - Schäfer, P.
AU - Wilming, H.
AU - Zykov, A.
AU - Pithan, L.
PY - 2019/3/1
Y1 - 2019/3/1
N2 - We demonstrate the use of a 3D printed radial collimator in X-ray powder diffraction and surface sensitive grazing incidence X-ray diffraction. We find a significant improvement in the overall signal to background ratio of up to 100 and a suppression of more than a factor 3 · 10 5 for undesirable Bragg reflections generated by the X-ray "transparent" windows of the sample environment. The background reduction and the removal of the high intensity signals from the windows, which limit the detector's dynamic range, enable significantly higher sensitivity in experiments within sample environments such as vacuum chambers and gas- or liquid-cells. Details of the additively manufactured steel collimator geometry, alignment strategies using X-ray fluorescence, and data analysis are also briefly discussed. The flexibility and affordability of 3D prints enable designs optimized for specific detectors and sample environments, without compromising the degrees of freedom of the diffractometer.
AB - We demonstrate the use of a 3D printed radial collimator in X-ray powder diffraction and surface sensitive grazing incidence X-ray diffraction. We find a significant improvement in the overall signal to background ratio of up to 100 and a suppression of more than a factor 3 · 10 5 for undesirable Bragg reflections generated by the X-ray "transparent" windows of the sample environment. The background reduction and the removal of the high intensity signals from the windows, which limit the detector's dynamic range, enable significantly higher sensitivity in experiments within sample environments such as vacuum chambers and gas- or liquid-cells. Details of the additively manufactured steel collimator geometry, alignment strategies using X-ray fluorescence, and data analysis are also briefly discussed. The flexibility and affordability of 3D prints enable designs optimized for specific detectors and sample environments, without compromising the degrees of freedom of the diffractometer.
UR - http://www.scopus.com/inward/record.url?scp=85062602255&partnerID=8YFLogxK
U2 - 10.1063/1.5063520
DO - 10.1063/1.5063520
M3 - Article
C2 - 30927801
AN - SCOPUS:85062602255
VL - 90
JO - Review of scientific instruments
JF - Review of scientific instruments
SN - 0034-6748
IS - 3
M1 - 035102
ER -