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Title: First point-spread function and x-ray phase-contrast imaging results with an 88-mm diameter single crystal

Journal Article · · Review of Scientific Instruments
DOI:https://doi.org/10.1063/1.5027499· OSTI ID:1438532
 [1];  [2];  [2]
  1. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
  2. Washington Univ. in St. Louis, St. Louis, MO (United States)

In this paper, we report initial demonstrations of the use of single crystals in indirect x-ray imaging with a benchtop implementation of propagation-based (PB) x-ray phase contrast imaging. Based on single Gaussian peak fits to the x-ray images, we observed a four times smaller system point-spread function (PSF) with the 50-μm thick single crystal scintillators than with the reference polycrystalline phosphor/scintillator. Fiber-optic plate depth-of-focus and Al reflective-coating aspects are also elucidated. Guided by the results from the 25-mm diameter crystal samples, we report additionally the first results with a unique 88-mm diameter single crystal bonded to a fiber optic plate and coupled to the large format CCD. Both PSF and x-ray phase contrast imaging data are quantified and presented.

Research Organization:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP)
Grant/Contract Number:
AC02-07CH11359; AC02- 07CH11359
OSTI ID:
1438532
Alternate ID(s):
OSTI ID: 1460601
Report Number(s):
FERMILAB-PUB-18-059-AD; arXiv:1807.02170; 1674303; TRN: US1900447
Journal Information:
Review of Scientific Instruments, Vol. 89, Issue 7; ISSN 0034-6748
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English

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