PFY-XAFS(Partial Fluorescence Yield XAFS・部分蛍光収量法によるXAFS)の多様な測定手法
Inquiry number
SOL-0000001381
Beamline
BL15XU (RIKEN Materials Science III)
Scientific keywords
| A. Sample category | inorganic material |
|---|---|
| B. Sample category (detail) | metal, alloy, semiconductor, superconductor, magnetic material, ferroelectric material, insulator, ceramics, solid-state crystal, amorphous, glass |
| C. Technique | absorption and its secondary process, fluorescent X-rays |
| D. Technique (detail) | XAFS, EXAFS, XANES, trace-element |
| E. Particular condition | polarization (linear), polarization (circular), ultra-high vacuum, surface, interface, low-T (~ liquid N2) |
| F. Photon energy | intermediate (2-4 keV), X-ray (4-40 keV) |
| G. Target information | local structure, structural change |
Industrial keywords
| level 1---Application area | |
|---|---|
| level 2---Target | |
| level 3---Target (detail) | |
| level 4---Obtainable information | interatomic distance, local structure |
| level 5---Technique | XAFS |
Classification
M40.10 XAFS
Body text
BL15XUに設置されている X-ray Emission Double Crystal Spectrometerを利用することにより、厚みが明らかで組成が均一の試料の透過モードでのXAFS測定のほかに、厚みのあるもの（バルク）、薄膜、界面、ナノサイズの結晶、ドーパント、液体試料等、多種にわたる試料を、大気状態および高真空状態の両方で、かつ常温および低温でPFY-XAFS 測定が可能である。
double crystal x-ray emission spectrometerにおける高エネルギー分解能（典型的にはdE/E ~ 10-4）により、検出された信号から非弾性/弾性散乱を分別することを可能とし、さらに、Ka1, La1, Lb1等の特性線の蛍光信号によりXAFSの特徴を記録することが可能である。
- X-rays at sample
- ID helical :
- YB66 : 1.1 - 3.8 keV ; dE/E = 104 - 105
- Si111: 2.2 - 4.5 keV; dE/E = 104 - 105
- ID linear:
- Si111: 4.0 - 19.5 keV; dE/E = 104 - 105
- ID helical :
Source of the figure
No figure
Technique
PFY-XANES
Source of the figure
No figure
Required time for experimental setup
hour(s)
Instruments
| Instrument | Purpose | Performance |
|---|---|---|
| Double-crystal x-ray emission spectrometer |
References
Related experimental techniques
Questionnaire
This solution is an application of a main instrument of the beamline.
Similar experiments account for more than 30% of the beamline's subject.
This solution is application of a new instrument installed in the past two years.
Ease of measurement
Easy
Ease of analysis
Middle
How many shifts were needed for taking whole data in the figure?
Two-three shifts