X-ray source for mammography

Patent · Sat Jan 01 04:00:00 EST 1994

OSTI ID:869666

Logan, Clinton M ^[1]

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1. Pleasanton, CA

An x-ray source utilizing anode material which shifts the output spectrum to higher energy and thereby obtains higher penetrating ability for screening mammography application, than the currently utilized anode material. The currently used anode material (molybdenum) produces an energy x-ray spectrum of 17.5/19.6 keV, which using the anode material of this invention (e.g. silver, rhodium, and tungsten) the x-ray spectrum would be in the 20-35 keV region. Thus, the anode material of this invention provides for imaging of breasts with higher than average x-ray opacity without increase of the radiation dose, and thus reduces the risk of induced breast cancer due to the radiation dose administered for mammograms.

• Research Organization: Lawrence Livermore National Laboratory (LLNL), Livermore, CA
• DOE Contract Number: W-7405-ENG-48
• Assignee: Regents of University of California (Oakland, CA)
• Patent Number(s): US 5375158
• OSTI ID: 869666
• Country of Publication: United States
• Language: English

Related Subjects

/378/
17
19
20-35
ability
administered
anode
anode material
application
average
breast
breast cancer
breasts
cancer
currently
currently utilized
dose
due
energy
imaging
increase
induced
kev
kev region
mammograms
mammography
material
molybdenum
obtains
opacity
output
output spectrum
penetrating
produces
provides
radiation
radiation dose
reduces
region
rhodium
risk
screening
screening mammography
shifts
silver
source
source utilizing
spectrum
tungsten
utilized
utilizing
x-ray
x-ray source