X-ray or gamma ray systems or devices – Specific application – Mammography
Patent
1988-11-03
1990-02-13
Church, Craig E.
X-ray or gamma ray systems or devices
Specific application
Mammography
378155, A61B 604
Patent
active
049013351
ABSTRACT:
A mammography apparatus with a cylindrical section, reciprocating slot grid centered on an axis through a source of x-ray radiation. The slot grid includes a plurality of x-ray radiation absorbing lamellae disposed parallel to and aligned radially from the axis. Adjacent pairs of lamellae define air spaced gaps between the members of the pair. The ratio of the height of each of an adjacent pair of lamellae to the width of the respective defined gap being at least 7:1. The slot grid is set in a travel centered on the axis through the x-ray source. The x-ray source is provided with a predetermined staggered turn on and turn off circuit preventing interspace density artifacts.
REFERENCES:
patent: 1164987 (1915-12-01), Bucky
patent: 1208474 (1916-12-01), Caldwell
patent: 1556217 (1925-10-01), Hamilton
patent: 1592279 (1926-07-01), Lechenger
patent: 1768769 (1930-07-01), Kelley
patent: 2511853 (1950-06-01), Kaiser
patent: 3578971 (1971-05-01), Lasky
patent: 4020347 (1977-04-01), Geluk
patent: 4096391 (1978-06-01), Barnes
patent: 4097748 (1978-06-01), Monvoisin
patent: 4340818 (1982-07-01), Barnes
patent: 4563768 (1986-01-01), Read et al.
patent: 4731806 (1988-03-01), Takahata
patent: 4759045 (1988-07-01), Lasky
"Medical Radiography and Photography", a journal published by the Eastman Kodak Company, vol. 62, No. 2, 1986.
Amplatz Kurt
Ferlic Daniel J.
Kotula Frank T.
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