CODED APERTURES DERIVED FROM THE FRESNEL ZONE PLATE.

Harrison H Barrett, W. W. Stoner, D. T. Wilson, G. D. DeMeester

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

C. Mertz and N. O. Young introduced the idea of using a Fresnel zone plate as a shadow-casting reticle, or coded aperture, in x-ray astronomy. More recently, considerable progress has been made toward using the zone-plate aperture for gamma-ray imaging in nuclear medicine. The most successful configuration has used an off-axis section of a zone plate in conjunction with a halftone screen. In this paper a variety of closely related coded apertures is discussed, including an annulus, an inverted zone plate, a spiral zone plate, and the Girard grill. In most cases, the technique of grid-coded subtraction is used to suppress the zero-order (DC) background light usually associated with zone-plate imaging.

Original languageEnglish (US)
Pages (from-to)539-549
Number of pages11
JournalOptical Engineering
Volume13
Issue number6
StatePublished - Nov 1974
Externally publishedYes

Fingerprint

apertures
Nuclear medicine
Imaging techniques
Astronomy
Gamma rays
Casting
X rays
x ray astronomy
nuclear medicine
annuli
subtraction
direct current
grids
gamma rays
configurations

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Barrett, H. H., Stoner, W. W., Wilson, D. T., & DeMeester, G. D. (1974). CODED APERTURES DERIVED FROM THE FRESNEL ZONE PLATE. Optical Engineering, 13(6), 539-549.

CODED APERTURES DERIVED FROM THE FRESNEL ZONE PLATE. / Barrett, Harrison H; Stoner, W. W.; Wilson, D. T.; DeMeester, G. D.

In: Optical Engineering, Vol. 13, No. 6, 11.1974, p. 539-549.

Research output: Contribution to journalArticle

Barrett, HH, Stoner, WW, Wilson, DT & DeMeester, GD 1974, 'CODED APERTURES DERIVED FROM THE FRESNEL ZONE PLATE.', Optical Engineering, vol. 13, no. 6, pp. 539-549.
Barrett HH, Stoner WW, Wilson DT, DeMeester GD. CODED APERTURES DERIVED FROM THE FRESNEL ZONE PLATE. Optical Engineering. 1974 Nov;13(6):539-549.
Barrett, Harrison H ; Stoner, W. W. ; Wilson, D. T. ; DeMeester, G. D. / CODED APERTURES DERIVED FROM THE FRESNEL ZONE PLATE. In: Optical Engineering. 1974 ; Vol. 13, No. 6. pp. 539-549.
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