Abstract
We studied the effects of 3.5 and 5.0 MeV alpha bombardment on polyethylene and polyvinylidene chloride, both of which have simple chemical structures. Using a thin polymer film stacking technique, we were able to map the effects of the MeV alpha particles in their track. The first layer of the thin polymer film stack experienced mostly the effects of the electronic energy deposited, and the last layer received mostly effects of the nuclear stopping. Using Raman microprobe analysis and by measuring the ratio of the formation of graphene structures (G-line) to the disordered (amorphous) carbon line (D-line), we were able to separate the severed bond effects at the end of the alpha particle tracks in the last polymer film layers from the effects of the electronic energy deposited in the first polymer film layers. The results are in agreement with our other measurements of each polymer film using FTIR, RBS and resistance measurements.
| Original language | English |
|---|---|
| Pages (from-to) | 164-168 |
| Number of pages | 5 |
| Journal | Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms |
| Volume | 141 |
| Issue number | 1-4 |
| DOIs | |
| State | Published - May 1998 |
Funding
This project was supported by the Howard J. Foster Center for Irradiation of Materials at Alabama A&M University and Alabama-EPSCoR/ASIP Grant No. OSR-9559480. The work at ORNL was sponsored by the Division of Materials Sciences, US Department of Energy, under contract DE-AC05-96OR22464 with Lockheed Martin Energy Research Corp. The authors would like to especially thank Dan Nisen and La Sonya Cephus at CIM-AAM-LJ for providing technical assistance during the ion beam experiments.
| Funders | Funder number |
|---|---|
| Division of Materials Sciences | |
| Howard J. Foster Center for Irradiation of Materials at Alabama A&M University | OSR-9559480 |
| U.S. Department of Energy | DE-AC05-96OR22464 |
Keywords
- Alpha bombardment
- Polyethylene
- Polyvinylidene chloride