References
- Glocker, R. (1925) Strahlenschutz und Anlagen von Rontgenabteilungen. Ergebn. med. Strahlenforsch., 1, p. 365.
- Miller, W. and Kennedy, R. J. (1955) X-ray attenuation in lead, aluminium, and concrete in the range 275 to 525 kilovolts. Radiology, 65, p. 920.
- Sievert, R. and Thoraeus, R. (1930) Experimental measurements of the lead-equivalence of various building-materials. Acta radiol., 11, p. 331.
- Thoraeus, R. (1950) Features of the system of periodical inspection adopted for roentgen therapy installations in Sweden, and some experiences of the inspection work. Acta radiol., 32, p. 253.
- Thoraeus, R. (1951) Quantitative measurements of low dose-rate roentgen rays in terms of the international r-unit by closed ionization chambers. Arkiv Fysik, 4, p. 353.
- Wyckoff, H. O. , Kennedy, R. J. and Bradford, W. R. (1948) Broad- and narrow-beam attenuation of 600- to 1,400-kilovolt X rays in lead and concrete. J. Res. Nat. Bureau Standards., 41, p. 223.