Techniques in Thin Film Fabrication
Abstract
An improved method for preparing thin films from the plastic scintillator NE 102A is described. Detailed step-by-step instructions are given beginning with the preparation of the plastic solutions and ending with the final mounting and storage of the films. The procedure typically yields one lamination films of 45 ug/cm squared thickness. Crosslinking in NE 102A scintillator solutions was induced with Cobalt 60 gamma rays to study the effect on physical strength of subsequent thin films. The polyvinyltoluene matrix was found to undergo crosslinking with essentially no chain scission and a gelling dose of 5.42 Mrad was determined experimentally; the G(crosslink) = 0.74. Thin films were made from NE 102A solutions which absorbed 0, 1.81, and 3.62 Mrad each. The response characteristics of each film were determined using a Cf-252 source. In general, the films from the irradiated solutions showed no evidence of diminished light output or inhomogeneity. However, films formed from the crosslinked solutions were unequivocably stronger, with strength increasing with dose. Detectors.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1988
- Accession Number
- ADA196288
Entities
People
- Steven D. Thompson
Organizations
- Air Force Institute of Technology