Sigray MAAST Transmission X-ray Source
Grating-based Talbot interferometry is one of the most exciting new methods that has emerged in x-ray physics over recent years and allows access to information from three x-ray phenomena simultaneously: phase contrast, absorption contrast, and darkfield (scattering) for detailed understanding of the structure and composition of samples. In conventional laboratory systems, a source grating (G0) is typically used in combination with an extended x-ray source.
The Sigray Microstructured Array Anode Source Technology (MAAST) Talbot-Lau x-ray source employs a transmission x-ray target featuring an array of microstructured metal x-ray emitters. The arrangement produces a downstream Talbot interference pattern (“Talbot carpet”) without requiring the use of a high aspect ratio source grating (G0).
Benefits of Sigray MAAST include:
- Throughput gains of ~4X over conventional approaches
- Production of large Talbot fringes that reduce requirements on downstream detector and detector grating components when designing a Talbot-based interferometry system
- Optimized contrast preservation
Sigray can customize its patented x-ray sources to your desired specifications.
The MAAST source can be customized in the following ways:
- Spot size (microfocus to larger medical spot sizes of 0.5mm)
- Target materials (tungsten comes standard)
- 1D or 2D arrays with various pitches and line width or dot size
- Vila-Comamala, J, et al. High sensitivity X-ray phase contrast imaging by laboratory grating-based interferometry at high Talbot order geometry.
Study performed using Sigray MAAST Talbot source
Please contact us with the form below or through firstname.lastname@example.org if you need a quotation or brochure for the x-ray source, or if you want to discuss customization options.