Mark P Schrader

US Patent:

45462550, Oct 8, 1985

Filed:

Apr 12, 1982

Appl. No.:

6/367245

Inventors:

Glenn F. Knoll - Ann Arbor MI
Mark E. Schrader - Ann Arbor MI

Assignee:

Medtronic, Inc. - Minneapolis MN

International Classification:

G06F 738
G01T 120

US Classification:

250369

Abstract:

An improved method and apparatus for energy window selection in a radiation signal processing system which in a preferred embodiment includes obtaining energy level histograms corresponding to corrected spatial elements and determining a standard count of radiation events to be accepted by each true spatial element in response to a flood image. The energy window of each corrected spatial element is then adapted to cause each to accept the standard count of radiation events in response to a flood image whereby greater uniformity of image may be accomplished in the imaging process.