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The dose distribution within the patient was studied with 8-MeV bremsstrahlung from a linear accelerator during mantle field irradiation using molded shielding blocks. Doses and dose distributions in the different layers of a modified Alderson phantom were measured by means of film dosimetry and related to the dose in the central ray beam at the middle of the body. Dose distribution within unshielded regions perpendicular to the central ray beam generally being relatively homogeneous, the highest relative doses, amounting to ca. 115%, are found in the region of the mandibular angle and in the supraclavicular region; the dose to superficial lymph nodes at the supraclavicular region reaches 100% of the dose in the central ray beam. As a cause for these important doses near the surface of the body are discussed the extension of mantle fields as well as the increased exit dose of the opposed field and the oblique incidence of radiation.
H W Nemec, and
E Walther
December 1980,
Strahlentherapie,
H W Nemec, and
E Walther
June 1978,
Strahlentherapie,
H W Nemec, and
E Walther
August 1978,
Radiobiologia, radiotherapia,
H W Nemec, and
E Walther
January 1975,
Radiobiologia, radiotherapia,
H W Nemec, and
E Walther
August 1979,
Radiobiologia, radiotherapia,
H W Nemec, and
E Walther
January 1976,
Radiobiologia, radiotherapia,
H W Nemec, and
E Walther
February 1980,
Strahlentherapie,
H W Nemec, and
E Walther
January 1985,
La Radiologia medica,
H W Nemec, and
E Walther
August 1981,
Strahlentherapie,
H W Nemec, and
E Walther
February 1982,
La Nouvelle presse medicale,
