Mammography imaging method using high peak voltage and rhodium or tungsten anodes

A method of imaging for mammography comprising exposing a patient to X-radiation at a peak voltage greater than 28 kVp, said X-radiation generated using rhodium anodes in an X-radiation generating device, and providing a black-and-white image of said exposed patient using an imaging assembly comprising:

• A) a radiographic silver halide film having a photographic speed of at least 100 and comprising a transparent film support having first and second major surfaces and that is capable of transmitting X-radiation,
• said radiographic silver halide film having disposed on said first major support surface, one or more hydrophilic colloid layers including at least one silver halide emulsion layer, and having disposed on said second major support surface, one or more hydrophilic colloid layers including at least one tabular grain silver halide emulsion layer,
• said film also comprising a protective overcoat layer disposed on both sides of said support,
• wherein said cubic grain silver halide emulsion layer comprises:
• 1) a combination of first and second spectral sensitizing dyes that provides a combined maximum J-aggregate absorption of from about 545 to about 555 nm when said dyes are absorbed on the surface of said cubic silver halide grains,
• wherein said first spectral sensitizing dye is the following Dye A-2, and wherein said second spectral sensitizing dye is following Dye B-1, said first and second spectral sensitizing dyes being present in a molar ratio of from about 0.5:1 to about 1.5:1, and the total spectral sensitizing dyes in said film is from about 0.25 to about 0.75 mg/mole of silver,
• 2) a mixture of a first hydrophilic binder that is gelatin or a gelatin derivative and a second hydrophilic binder that is a dextran or polyacrylamide, wherein the weight ratio of said first hydrophilic binder to said second hydrophilic binder is from about 2.5:1 to about 3.5:1 and the level of hardener in said cubic grain silver halide emulsion is from about 0.5 to about 1.5 weight % based on the total weight of said first hydrophilic binder in said cubic grain silver halide emulsion layer,
• 3) cubic silver halide grains comprising from about 10 to about 20 mol % chloride and from about 0.5 to about 1 mol % iodide, both based on total silver in said cubic grain silver halide emulsion layer, which cubic silver halide grains have an average ECD of from about 0.72 to about 0.76 μm, and
• 4) cubic silver halide grains that are doped with a hexacoordination complex compound within 75 to 80% of the innermost volume from the center of said cubic silver halide grains, wherein said hexacoordination complex compound is represented by the following Structure I:
• [ML6]n
• wherein M is Fe+2, Ru+2, Os+2, Co+3, Rh+3, Ir+3, Pd+3, or Pt+4, L represents six coordination complex ligands that can be the same or different provided that at least three of the ligands are cyanide ions, and n is −2, −3, or −4, and
• B) a single fluorescent intensifying screen that comprises an inorganic phosphor capable of absorbing X-rays and emitting electromagnetic radiation having a wavelength greater than 300 nm, said inorganic phosphor being coated in admixture with a polymeric binder in a phosphor layer disposed on a flexible support and having a protective overcoat disposed over said phosphor layer.