Modification of a SAXS camera to study structures on multiple scales
Modification of a SAXS camera to study structures on multiple scales
复制标题
修改 SAXS 相机以研究多个尺度的结构
DOI:
10.1007/s11051-017-4017-1
复制
发表时间:
2017
影响因子:
2.5
通讯作者:
H. Nirschl
中科院分区:
文献类型:
--
作者:
A. Gutsche;M. Meier;X. Guo;J. Ungerer;H. Nirschl
A compact small-angle X-ray scattering (SAXS) camera was modified in order to cover a significantly wider size range than that typically covered by conventional lab-based devices. A new housing with a larger sample-to-detector distance (230 → 1300 mm) was developed and a new focusing Göbel mirror was installed to provide a narrower beam width needed to detect scattering intensities very close to the primary beam. A new photon-counting detector was applied to probe the intensity at small scattering vectors while an imaging plate detector serves to simultaneously collect data at large scattering angles up to 90°. The relevant features of the camera are shown and discussed based on raytracing simulations and SAXS measurements, respectively. The minimum scattering vector could be decreased by a factor of 10 to a value of 0.008 nm−1corresponding to structures up to 780 nm in size. Structural analyses of selected particle systems demonstrate ability of the modified camera to probe various structural parameters on multiple scales, e.g., crystallite size, primary particle size, aggregate size, and fractal dimensions. The modified camera system is promising for structural studies of particle formation and growth/aggregation mechanisms since it provides information on multiple scales ranging from angstroms to several hundred nanometers.
登录
查看更多内容
DOI:
10.1021/je60044a003
发表时间:
1970-01-01
期刊:
JOURNAL OF CHEMICAL AND ENGINEERING DATA
影响因子:
--
作者:
KELL, GS
通讯作者:
KELL, GS
影响因子:
3.2
作者:
M. Sztucki;T. Narayanan;G. Beaucage
通讯作者:
M. Sztucki;T. Narayanan;G. Beaucage
影响因子:
6.1
作者:
A. Gutsche;N. Dingenouts;Xiaoai Guo;M. Meier;H. Nirschl
通讯作者:
H. Nirschl
DOI:
--
发表时间:
2012
期刊:
影响因子:
--
作者:
V. Goertz;A. Gutsche;N. Dingenouts;H. Nirschl
通讯作者:
H. Nirschl
影响因子:
2.5
作者:
A. Gutsche;Alexander Daikeler;Xiaoai Guo;N. Dingenouts;H. Nirschl
通讯作者:
A. Gutsche;Alexander Daikeler;Xiaoai Guo;N. Dingenouts;H. Nirschl