Coded Aperture Imaging for Fluorescent X-rays-Biomedical Applications
Employing a coded aperture pattern in front of a charge couple device pixilated detector (CCD) allows for imaging of fluorescent x-rays (6-25KeV) being emitted from samples irradiated with x-rays. Coded apertures encode the angular direction of x-rays and allow for a large Numerical Aperture x- ray imaging system. The algorithm to develop the self-supported coded aperture pattern of the Non Two Holes Touching (NTHT) pattern was developed. The algorithms to reconstruct the x-ray image from the encoded pattern recorded were developed by means of modeling and confirmed by experiments. Samples were irradiated by monochromatic synchrotron x-ray radiation, and fluorescent x-rays from several different test metal samples were imaged through the newly developed coded aperture imaging system. By choice of the exciting energy the different metals were speciated.
- Research Organization:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- DOE Contract Number:
- DE-AC02-05CH11231
- OSTI ID:
- 1171122
- Report Number(s):
- LBNL-6304E
- Resource Relation:
- Conference: Fully Three-Dimensional Image Reconstruction in Radiology and Nuclear Medicine, Granlibakken, Lake Tahoe, June 16 to June 21, 2013
- Country of Publication:
- United States
- Language:
- English
Similar Records
Method for measuring the focal spot size of an x-ray tube using a coded aperture mask and a digital detector
Energy dispersive detector for white beam synchrotron x-ray fluorescence imaging