1.
Bol Med Hosp Infant Mex
; 44(6): 354-9, 1987 Jun.
Artigo
em Espanhol
| MEDLINE
| ID: mdl-3606799
2.
Rev Interam Radiol
; 5(1): 25-9, 1980 Jan.
Artigo
em Espanhol
| MEDLINE
| ID: mdl-7384677
RESUMO
Tumor-maximum ratios and back-scatter factors were measured for 8 MV x-rays. The measured TMR's are found to conform to the empirical expression TMR(t) = K(t) A tm(t). Hence, log-log plots of TMR vs. area at various depths in water, yield straight lines from which values of TMRo (for 0 x 0 cm2 field) are obtained by extrapolation. From these values, scatter-phantom ratios are also derived.