- CITIUS Presentation at the 27th Congress of the International Union of Crystallography, Calgary, Canada, August 2026Dr Takaki Hatsui from RIKEN will be presenting CITIUS and its recent application examples in synchrotron radiation experiments and its potential for laboratory X-ray measurements such as: XRR, fluorescence suppression, Kβ rejection and integrated diffraction XRF.
- On-the-fly FPGA Based Data Compression Developed by RIKENkai scientific is pleased to highlight the publication of research performed by RIKEN into on-the-fly data compression using FPGAs in the CITIUS detector system. The research group achieved a compression ratio of approximately 1/8,600 on average by immediately performing pixel-by-pixel preprocessing after data generation, thus enabling users to check the analysis results during experiments and… Read more: On-the-fly FPGA Based Data Compression Developed by RIKEN
- Three-dimensional imaging of CMOS image sensor pixel structures using ptychographic x-ray computed tomography in the tender x-ray regime
kai scientific is pleased to highlight this first paper of ptychographic x-ray computed tomography from Tohoku University using a CITIUS triple sensor detector at the NanoTerasu synchrotron in Sendai. Appl. Phys. Lett. 127, 184102 (2025); doi: 10.1063/5.0297526 Figure 4a reproduced from the paper and also available here https://www.sris.tohoku.ac.jp/en/researchers/takahashi_yukio.html - Prospects for coherent X-ray diffraction imaging at fourth-generation synchrotron sources
kai scientific is delighted to see references to the Bragg CDI and ptychography publications by Grimes et al. and Takahashi et al. cited in the topical review article by Yuriy Chuskin and Frederico Zontone in IUCrJ titled "Prospects for coherent X-ray diffraction imaging at fourth-generation synchrotron sources". These referenced publications feature the CITIUS detectors where… Read more: Prospects for coherent X-ray diffraction imaging at fourth-generation synchrotron sources - GDR CohereX Conference in Soleil
We enjoyed attending the GDR CohereX conference held on the 7th, 8th and 9th of October at the Soleil synchrotron outside Paris. The GDR initiative (Groupement De Recherche) brings together the scientific community in France who work with coherent X-rays at 3rd and 4th generation synchrotron sources. The highlight for kai scientific was the talk… Read more: GDR CohereX Conference in Soleil

CITIUS
The CITIUS X-ray detector system is a direct detection type next-generation X-ray image detector.
Direct detection has become a standard in recent years and achieves high sensitivity and effective zero noise. The CITIUS X-ray detector system is also a next-generation X-ray image detector capable of detecting high-intensity X-rays. It performs a high counting rate that cannot be achieved with the current state-of-the-art photon-counting detectors and has the world's highest performance.
This new CITIUS detector system enables high dynamic range imaging and high-speed imaging, and we hope to contribute to the further development of synchrotron radiation science.
CITIUS Performance
CITIUS electro-optical performance that achieves a high count rate of 600 Mcps or a high frame rate of 17.4 kfps.
Product
Introduction of the camera-head line-up






