The sensitivity of X-ray phase imaging based on Talbot interferometry is discussed. In order to evaluate the superiority of the technique to the conventional absorption-contrast method, which relies on X-ray absorption, a criterion is proposed. An experimental result of X-ray phase imaging with a Talbot interferometer is compared with the criterion. The criterion is also available for X-ray phase imaging based on Talbot-Lau interferometry. The advantage of X-ray phase imaging based on Talbot(-Lau) interferometry is more prominent when smaller structures are observed with smaller pixels.
ASJC Scopus subject areas
- Physics and Astronomy(all)