1.
Int J Radiat Oncol Biol Phys
; 6(6): 695-702, 1980 Jun.
Article
in English
| MEDLINE
| ID: mdl-6778844
2.
Med Phys
; 6(2): 147-8, 1979.
Article
in English
| MEDLINE
| ID: mdl-460064
ABSTRACT
Attenuation in Lipowitz's metal of x rays produced at 2, 4, 10, and 18 MV and gamma rays from cobalt 60 were measured to the 1% level with a narrow beam geometry. Blocks made from standard styrofoam mold (7.6 cm thick) would reduce these primary beams by 95% to 99%.