DayF. H.TaylorL. S.: Absorption of X-rays in Air. Radiology52 (1949), 239.
3.
JenningsW. A.: Physical Aspects of the Roentgen Radiation from a Beryllium Window Tube operated over the Range 2–50 K. V. P. for clinical Purposes. Acta radiol.33 (1950), 435.
4.
KramersH. A.: On the Theory of X-ray Absorption and of the Continuous X-ray Spectrum. Phil. Mag.46 (1923), 836.
5.
OosterkampW. J.: Private communication, 1950.
6.
QuimbyE. H.FochtE. F.: Dosage Measurements in Contact Roentgen Therapy. Am. J. Roentgenol.50 (1943), 653.
7.
RogersT. H.: High Intensity Radiation from Beryllium Window X-ray Tubes. Radiology48 (1947), 594.
8.
TaylorL. S.: The Measurement of X and Gamma Radiation over a Wide Energy Range. Brit. J. Radiol.24 (1951), 67.
9.
TaylorL. S.StoneburnerC. F.: The Measurement of Low Voltage X-ray Intensities. B. S. J. Res.9 (1932), 769.