HyPix-3000 High-resolution/high-speed 2D photon counting X-ray detector The perfect detector for high-resolution and ultrafast measurement The world’s most versatile home lab diffraction detecto 4 Reasons why the HyPix-3000 detector belongs in your research lab • • • • Ultra-high dynamic range and high sensitivity Seamless switching from 2D-TDI (Time Delay and Integration) mode to 2D snapshot mode to 1D-TDI mode to 0D mode with a single detector XRF suppression by high and low energy discrimination High spatial resolution, direct-detection pixel array detector State of the art detector technology Rigaku’s HyPix-3000 is a next-generation two-dimensional semiconductor detector designed specifically to meet the needs of the home lab diffractionist. One of the HyPix-3000’s unique features is its large active area of approximately 3000 mm2 with a small pixel size of 100 μm square, resulting in a detector with high spatial resolution. In addition, the HyPix-3000 is a single photon counting X-ray detector with a high count rate of greater than 106 cps/pixel, a fast readout speed and essentially no noise. Featuring a double-threshold (window) discriminator, the HyPix-3000 has three readout modes that can be selected based on the purpose of a measurement. “Differential” mode can be used to suppress fluorescence from elements in a sample or background derived from cosmic rays. “31-bit” mode is used for experiments in which a very wide dynamic range is needed. “Zero dead time” mode makes it possible to perform extremely fast data collection. Figure 1. Schematic view of hybrid pixel array detector The HyPix-3000 was designed for optimal flexibility and minimal maintenance. For example, the compact angular enclosure was designed to allow excellent high angle accessibility. Compared to the design of other types of detectors, the HyPix-3000 is essentially maintenance free. Unlike other types of detectors, it does not require an external cooling device as required on CCD detectors, or gas exchange and anode wire washing as required on multi-wire detectors. How do you most effectively suppress background noise? Each pixel on the HyPix-3000 detector has dual energy discriminators, which makes it possible to adjust the energy window width by setting the energy threshold to “high” and “low”, respectively. The low-energy discriminator can eliminate electrical noise and reduce fluorescence background, and the high-energy discriminator can eliminate cosmic rays and white radiation. As a result, you can measure data with an optimized signal-to-noise ratio. Figure 2 shows the X-ray diffraction pattern of a powder sample containing iron measured in standard mode (upper) and XRF reduction mode (lower). By using differential XRF reduction, it is possible to obtain an X-ray diffraction pattern with low background, and thereby improve the ability to detect trace components, even when measuring Fe-based compounds with a Cu source. Figure 2. X-ray diffraction patterns of iron oxide powder, measured in standard mode and XRF reduction mode 1 or What is the best way to measure very strong reflections? A big advantage of a hybrid pixel array detector is that each pixel is independent and the overall dynamic range of a detector is a sum of the dynamic range of each individual pixel. Each pixel of the HyPix-3000 has two 16-bit counters, and these can be combined to work as a single 31-bit counter achieving very wide dynamic range. This means that, wide dynamic range measurements can be performed without an attenuator, thus removing the error associated with the attenuator factor, as well as optimizing data measurement time. Figure 3 shows the high-resolution rocking curve profiles of InGaN/GaN multiple quantum wells (MQW) with the HyPix-3000 (wide dynamic range 31-bit mode) and scintillation counter. The profile obtained in 31-bit mode clearly indicates separated peaks without saturation. Two-dimensional diffraction image of InGaN/GaN MQW Figure 3. High resolution rocking curve profiles of InGaN/GaN MQW How do you obtain data with excellent spatial resolution? The HyPix-3000 detector’s small pixel size provides outstanding spatial resolution. Figure 4 shows a typical qualitative analysis, which, in this example, was done in 2 minutes. In this case, the detector was run in a one dimensional Time Delay and Integration mode (1D-TDI mode), which allows continuous movement of the detector during measurement. If you want resolution less than 0.03 degrees at full width at half maximum (FWHM), as shown in Figure 5, you can run the detector in 0D mode which requires placing a mechanical slit on the face of the detector. 1D-TDI mode measurement Figure 4. X-ray diffraction pattern of Al2O3 powder 0D mode measurement Figure 5. X-ray diffraction patterns of LaB6 powder 2 Multi-dim 1D/High-speed High spatial re High-Speed Reciprocal Space Map (High Resolution) Lattice constant, strain and stress analyses of epitaxial films. GI-SAXS Characterizatio High-Speed Residual Stress (Fixed 0) High-speed residual stress and strain analyses of bulk samples. Wide Range Reciprocal Space Map Epitaxial relationships, domain evaluation of High-Speed Powder XRD (Time Delay Integration) High-speed measurement for identification, quantitative analysis, crystallite quality of powders. In situ High-Temperature XRD Phase transition, reaction, dehydration analyses of organic compounds. 3 ensional applications with SmartLab + HyPix-3000 d readout, solution 2D/Large active window with high sensitivity Pole Figure Texture, orientation analyses of inorganic bulk samples. 0D/High count rate, High accuracy photon counting on of quantum dot arrays and self-assembled organics. Reflectivity Thickness, density, and roughness analyses of thin film samples. High-Resolution Rocking Curve Thic Th Thickness, ckn knes ess, s, com composition o positio and mismatch evaluation of epitaxial films. f epitaxial films. Rocking Curve Mosaic spread analysis of samples with preferred orientation. SAXS and U-SAXS Particle size and distribution analyses of nano/sub micron scale particles. In-Plane XRD Phase identification, crystal quality, and orientation analyses of bulk and thin films. 4 A modern detector that will have a high impact on you How can you effectively investigate phenomena that are constantly changing over time? The HyPix-3000 detector is equipped with high-speed readout circuit. This means that dead time during readout is actually zero. Due to true shutterless operation, in situ and time resolved measurement can be easily performed. As shown in Figure 6, the phase transition process in the synthesis of gehlenite from the mixture of corundum, quarts, and calcite under conditions of continuous temperature rise was visually recorded at each stage by utilizing the detector features of fast readout and large active area. Figure 6. 2D in situ exposure measurement of ceramic How can you measure a wide angle range rapidly? The HyPix-3000 supports two-dimensional Time Delay and Integration mode measurement, so a 2D detector can be used for simultaneous scanning like a 0D or 1D detector is used. The ability to operate a fast 2D detector in TDI mode is best illustrated for the measurement of a reciprocal space map. Figure 7 shows a wide range reciprocal space map of a (Pb,La)TiO3 (PLT) orientated film on a Pt base layer and a Si substrate. Data collection for the calculation of this reciprocal space map was completed within 10 minutes. This fast data measurement speed was accomplished due to the size of the detector, the TDI data measurement mode and the high readout speed, which allows shutterless data collection. 5 Figure 7. Reciprocal space map of PLT/Pt/Si ur research Specifications Sensors Active area Pixel size Number of pixels Threshold Counter mode Global count rate Internal counter bit Semiconductor pixel sensor 2984 mm2 (77.5 × 38.5 mm) 100 × 100 μm 775 × 385 = 298375 pixels 2 ch Differential/31-bit/zero dead time >2.9 x 1011 cps (>1 × 106 cps/pixel) Max.: 31-bit/pixel (Normal: 16-bit/pixel) Efficiencies Cr, Fe, Co, Cu: 99% Mo: 38% Readout time Energy resolution Dimensions Weight 3.7 ms (0 ms for zero dead time mode) Better than 25% at Cu K 147(W) × 93(H) × 180(D) mm Approximately 2 kg Figure 8. HyPix-3000 single photon counting X-ray detector† Figure 9. System configurations The HyPix-3000 hybrid-pixel array detector (Figure 8) was designed specifically for the home lab diffractionist. The shape was chosen to allow optimization of the achievable 2 angle by minimizing interference of the detector with the diffractometer goniometer. Figure 9 shows the two system configurations for the different modes of measurement (0D, 1D, and 2D) with the Rigaku SmartLab XRD system equipped with the HyPix-3000 detector. The HyPix-3000 detector serves as a multi-dimensional detector. Ranging from 0D measurement using a point detector and 1D measurement using a linear detector to 2D measurement using an area detector, it can fulfill the purpose of all your measurements without replacing the detector. Backed by Rigaku Since its inception in 1951, Rigaku has been at the forefront of analytical and industrial instrumentation technology. Today, with hundreds of major innovations to our credit, the Rigaku Group of companies are world leaders in the field of analytical X-ray instrumentation. Rigaku employs over 1,100 people worldwide in operations based in Japan, the U.S., Europe, South America and China. † This product was jointly developed by Department of Measurement and Electronics, AGH University of Science and Technology (Poland) and Rigaku Corporation. 6 HyPix-3000 High-resolution/high-speed 2D photon counting X-ray detector www.Rigaku.com Rigaku Corporation and its Global Subsidiaries website: www.Rigaku.com | email: [email protected] DET_BRO_HYPIX3000v01 03_2014 Copyright © 2014. Rigaku Corporation. All rights reserved.
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