STADI P Máy nhiểu xạ X phân tích đặc tính chất xúc tác hiệu quả về chi phí

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● Nhiều loại đầu dò tia X đếm photon đơn.

● Bức xạ Kα1 tinh khiết sử dụng nguồn Co, Cu, Mo và Ag.

● Chế độ truyền/Debye-Scherrer hoặc Bragg-Brentano.

Introduction

The well-known, high-precision STOE STADI P two circle goniometer is the basis of STOE’s powder diffraction building block system (read more about it here). Vertically or horizontally mounted, the STADI P can be built in Transmission/Debye-Scherrer or Bragg-Brentano geometry. Moreover, two STADI P goniometers, either in the same or different configurations, can be mounted in the same cabinet resulting in two completely independent instruments. However, the two goniometers can also share one source.

Various single-photon-counting X-ray detectors
Pure Kα₁ radiation using Co, Cu, Mo and Ag sources
The ultimate platform for laboratory PDF calculations using Ag Kα₁ data
Transmission/Debye-Scherrer or Bragg-Brentano mode
Ideally suited for the analysis of air/moisture-sensitive and microsamples
A range of high- and low-temperature attachments available
ADVANTAGES OF TRANSMISSION-/ DEBYE-SCHERRER GEOMETRY
Same sample volume in the beam over the full 2θ scale
Reliable intensities with no necessity for further mathematical corrections
No line broadening for weak absorbers
No height displacement
Real micro-sampling possible
Lesser effects of preferred orientation

Specifications

2θ range	0° up to 140° 2θ
Goniometer	2 circles
Radius of measuring circle	260 mm
Radius of focusing circle	130 mm
X-ray sources	Sealed Tubes: Co, Cu, Mo, Ag
Optics	Primary monochromator
Software	WinXPOW package
Dimensions (including system cabinet, max.)	1800 x 880 x 2050 mm
Weight (complete system)	780 – 940 kg
Detectors	Silicon strip detector MYTHEN2 R 1K/2K/3K/4K
Accessories	High- and low-temperature attachments for reflection and capillary samples Reaction chamber for capillary samples Various sample stages Various sample changers

Powder STADI P DSC 7323 RZ e1686834392423 — The STADI P can be set up by itself or as a dual setup with two different geometries on the independent goniometers.

STADIP 1 e1681798921908 — The horizontal STADI P set up with a capillary sample holder.

STADIP 2 — The horizontal STADI P set up with STOE's transmission sample holder.

Mythen 3K e1686833321953 — For ultra fast measurements of e.g. unstable samples STOE offers an installation with up to four MYTHEN detectors. With four MYTHEN detectors a single exposure will cover 0 - 73° in 2θ. (See the respective AppNote)

ADAMAnT

When an X-ray tube ages, it is possible that its take off angle changes, resulting in a 2 Theta shift of the reflex positions on the detector. To reverse the impact of this take off angle change, the monochromator and sample position have to be adapted through a Beam Optimization.
The STOE STADI P Beam Optimization has been a well-established tool of the WinXPOW software for a very long time. It automatically sets the Johann type monochromator to the maximum intensity of the Kα1-radiation of a sealed tube’s line focus by the help of a certified standard material – but the alignment of the goniometer axis into the beam path has – so far – still to be done manually with a luminance screen.
From now on, the unique ADAMAnT tool aligns monochromator and goniometer automated to the Kα1-radiation, making any contact with the open beam or its air scattered radiation no longer necessary, no matter whether it is only the exchange of a worn-out tube by a new one with the same anode material or whether the radiation should be swapped to a different one.
The ADAMAnT is available for all typical anode materials (Co, Cu, Mo, Ag) but currently only for horizontal setups, with plans for future availability in vertical configurations and conveniently, can be integrated into existing horizontal STADI P diffractometers.

StadiP2 reveal new 1536x1536 — Rendering of a horizontal STADI P including the hardware for the ADAMAnT

STADi P for pdf data collection

As the demand for materials with lower degrees of order continues to rise, the significance of Pair Distribution Function (PDF) measurements is growing steadily. To measure best possible data for PDF interpretation, the STADI P can be installed with Ag Kα1 radiation and expanded with a PDF collimator, a MYTHEN2 4K detector and optionally air scattering shields, without any loss in diffraction data quality.

PDF comparison Zobel e1681221508789 — This direct comparison of PDF data measured on the ionic liquid hmimPF6 shows how excellent our instrument performs versus a synchrotron. Plot from: doi.org/10.1063/1.5093714

STOE Transmission 054 bearb e1686834533942 — PDF data is preferably collected in Debye-Scherrer geometry, which is beneficial for air sensitive samples.

PDF1 e1684828024312 — With the MYTHEN2 4K detector in one-step mode you can measure up to 144° 2θ (2x 27° simultaneously, see the respective AppNote) in shortest time.

multimythenPDF e1684828157149 — Shields can optionally be set on the detectors to reduce additional effects of air scattering

STOE Transmission 070 e1686834558935 — For PDF measurements we offer a special collimator to reduce addittional background signal at high angles.

Software & Accessories

WinXPOW, is a uniquely designed powder diffraction software developed exclusively by our skilled team at STOE. It is meticulously crafted to perfectly work with our instruments, ensuring seamless compatibility and optimal performance. In addition to controlling the instruments, WinXPOW provides a comprehensive range of cutting-edge features. These include data reduction, profile fitting, pattern indexing, and spacegroup determination. Moreover, it boasts an array of powerful functionalities, such as advanced 2D and 3D graphics, among numerous other capabilities.

Hãng sx: RAPID (Labortex)

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