Irradiation "Factor-Dependency": Some Vinyl Monomers: "Out-Scattering," "In-Scattering," and Non-Uniformity of the Scanning Beam.
Abstract
The so-called "back-scattering" or "out-scattering" of radiation energy when accelerated electrons impinge on a surface has been recognized for some time. Considerable effort has been devoted to the development of techniques to correct for this loss, but this laboratory has not encountered any reference to "in-scattering" when a container such as a one-inch pyrex glass tube is used. In some of our previous reports, we have used adjusted results where the formulation for obtaining such values is: "adjusted value" ~ (per cent polymerization X 100)/(per cent ionization). The per cent ionization is found by multiplying the average wall thickness of the tube by the density of the glass (2. 23) and then interpolating from a graph developed by Trump, et al. 1 In arriving at the average wall thickness, twenty micrometer readings were taken.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1961
- Accession Number
- AD0287561
Entities
People
- Edward F. Degering
- Flora E. Evans
- Gerald J. Calderella