Quantitative analysis of a micro array anode structured target for hard x-ray grating interferometry.
Phys Med Biol
; 65(3): 035008, 2020 02 04.
Article
in En
| MEDLINE
| ID: mdl-31874460
ABSTRACT
Talbot-Lau interferometry (TLI) provides additional contrast modes for x-ray imaging that are complementary to conventional absorption radiography. TLI is particularly interesting because it is one of the few practical methods for realizing phase contrast with x-rays that is compatible with large-spot high power x-ray sources. A novel micro array anode structured target (MAAST) x-ray source offers several advantages for TLI over the conventional combination of an extended x-ray source coupled with an absorption grating including higher flux and larger field of view, and these advantages become more pronounced for x-ray energies in excess of 30 keV. A Monte Carlo simulation was performed to determine the optimal parameters for a MAAST source for use with TLI. It was found that the both spatial distribution of x-ray production and the number of x-ray produced in the MAAST have a strong dependence on the incidence angle of the electron beam.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Image Processing, Computer-Assisted
/
Radiography
/
Electrodes
/
Interferometry
Type of study:
Diagnostic_studies
/
Health_economic_evaluation
Limits:
Humans
Language:
En
Journal:
Phys Med Biol
Year:
2020
Type:
Article
Affiliation country:
United States