A method for obtaining body contours using an ultrasonic scanner and transverse tomograms.
Published in Medical physics
Single crystal sapphire: a thermally stimulated conductance (TSC) radiation dosimeter.
Published in Medical physics
Altering the energy dependence of LiF TLDs by pre-irradiation.
Published in Medical physics
Absolute kilovoltage calibration of a diagnostic x-ray generator.
Published in Medical physics
A method for absolute calibration of diagnostic x-ray generators is presented and discussed. The method employs a Ge(Li) detector and relies on the direct observation of the onset of fluorescence radiation from scattering foils placed in the primary beam.
Computerized therapy registry: the Mayo Clinic experience.
Published in Medical physics
Establishing a computerized tumor registry involves careful consideration of a number of factors. Included in this consideration are the cost of both software and hardware, the type and selection of data needed, and the ongoing cost of the program. A representative listing of the data to be collected for the radiotherapy tumor registry is included....
High energy electron radiotherapy in a magnetic field.
Published in Medical physics
We propose the use of high energy electrons in a strong local magnetic field as the ionizing beam in radiation therapy. A high kinetic energy insures that the electrons will penetrate to deep-seated tumor masses. A high magnetic field of several tesla in the region encompassing the tumor will confine the high energy electrons to the tumor volume be...
Exposure values around an x-ray scanning transaxial tomograph (EMI scanner).
Published in Medical physics
Measurements of exposure accumulated in a one-month period in and around a scanning x-ray transaxial tomograph are reported. For the unit studied (the EMI neurological scanner) values measured indicate that the shielding required is "minimal."
Series of high-sensitivity TL phosphors made from divalent-metal sulfates.
Published in Medical physics
A systematic survey of the thermoluminescence (TL) of rare earth activated sulfates of the form MeSO4:RE was made, where Me denotes a divalent metal and RE the rare earth. SrSO4:Tb(3+) and BaSO4:Eu(2+) exhibit very high TL efficiency following gamma irradiation, comparable to that of the most sensitive phosphors currently available for TL dosimetry...
Mathematical method for determining kVp from x-ray attenuation measurements.
Published in Medical physics
A mathematical analysis of the shape of x-ray attenuation curves is presented that suggests a new method of determining the kVp of bremsstrahlung beams. The main result is a simple analytic formula which gives an excellent approximation to the attenuation curve for large thickness of high-Z absorber. From this, a graphical procedure is derived whic...
Boron neutron capture therapy for the treatment of cerebral gliomas. I. Theoretical evaluation of the efficacy of variou...
Published in Medical physics
The technique of boron neutron capture therapy in the treatment of cerebral gliomas depends upon the selective loading of the tumor with a 10B-enriched compound and subsequent irradiation of the brain with low-energy neutrons. The charged particles produced in the 10B (n,alpha) 7Li reaction have ranges in tissue of less than 10 mum so that the dose...
