A small/wide-angle X-ray scattering instrument for structural characterization of air-liquid interfaces, thin films and bulk specimens

被引：159

作者：

Jeng, U-Ser ^{[1
]}

Su, Chiu Hun ^{[1
]}

Su, Chun-Jen ^{[1
]}

Liao, Kuei-Fen ^{[1
]}

Chuang, Wei-Tsung ^{[1
]}

Lai, Ying-Huang ^{[2
]}

Chang, Je-Wei ^{[2
]}

Chen, Yi-Jiun ^{[2
]}

Huang, Yu-Shan ^{[1
]}

Lee, Ming-Tao ^{[1
]}

Yu, Kuan-Li ^{[1
]}

Lin, Jhih-Min ^{[3
]}

Liu, Din-Goa ^{[1
]}

Chang, Chia-Feng ^{[1
]}

Liu, Chin-Yen ^{[1
]}

Chang, Chien-Hung ^{[1
]}

Liang, Keng S. ^{[1
]}

机构：

[1] Natl Synchrotron Radiat Res Ctr, Hsinchu 300, Taiwan

[2] Tunghai Univ, Dept Chem, Taichung 407, Taiwan

[3] Australian Natl Univ, Res Sch Chem, Canberra, ACT 0200, Australia

来源：

JOURNAL OF APPLIED CRYSTALLOGRAPHY | 2010年 / 43卷

关键词：

ANOMALOUS SMALL-ANGLE; ADVANCED PHOTON SOURCE; BEAMLINE; ABSORPTION; NSRRC; DIFFRACTION; CRYSTALLIZATION; SYNCHROTRON; DISPERSION; APPARATUS;

D O I：

10.1107/S0021889809043271

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

At the National Synchrotron Radiation Research Center, a small/wide-angle X-ray scattering (SAXS/WAXS) instrument has been installed at the BL23A beamline with a superconducting wiggler insertion device. This beamline is equipped with double Si(111) crystal and double Mo/B(4)C multilayer monochromators, and an Si-based plane mirror that can selectively deflect the beam downwards for grazing-incidence SAXS (GISAXS) studies of air-liquid or liquid-liquid interfaces. The SAXS/WAXS instrument, situated in an experimental hutch, comprises collimation, sample and post-sample stages. Pinholes and slits have been incorporated into the beam collimation system spanning a distance of similar to 5 m. The sample stage can accommodate various sample geometries for air-liquid interfaces, thin films, and solution and solid samples. The post-sample section consists of a 1 m WAXS section with two linear gas detectors, a vacuum bellows (1-4 m), a two-beamstop system and the SAXS detector system, all situated on a motorized optical bench for motion in six degrees of freedom. In particular, the vacuum bellows of a large inner diameter (260 mm) provides continuous changes of the sample-to-detector distance under vacuum. Synchronized SAXS and WAXS measurements are realized via a data-acquisition protocol that can integrate the two linear gas detectors for WAXS and the area detector for SAXS (gas type or Mar165 CCD); the protocol also incorporates sample changing and temperature control for programmable data collection. The performance of the instrument is illustrated via several different measurements, including (1) simultaneous SAXS/WAXS and differential scanning calorimetry for polymer crystallization, (2) structural evolution with a large ordering spacing of similar to 250 nm in a supramolecular complex, (3) SAXS for polymer blends under in situ drawing, (4) SAXS and anomalous SAXS for unilamellar lipid vesicles and metalloprotein solutions, ( 5) anomalous GISAXS for oriented membranes of Br-labeled lipids embedded with peptides, and (6) GISAXS for silicate films formed in situ at the air-water interface.

引用

页码：110 / 121

页数：12

共 40 条

[1] Characterization of ceramics by X-ray and neutron small-angle scattering [J].