Hostname: page-component-586b7cd67f-t7fkt Total loading time: 0 Render date: 2024-11-26T13:34:29.550Z Has data issue: false hasContentIssue false
  • English
  • Français

X-Ray Radiation Damage of Polymers in a Scanning Transmission X-Ray Microscope

Published online by Cambridge University Press:  02 July 2020

T. Coffey ,
H. Ade ,
S. Urquhart  and
A.P. Smith
T. Coffey
Affiliation:
Dept. of Physics, North Carolina State University, Raleigh, NC 27695-8202
H. Ade
Affiliation:
Dept. of Physics, North Carolina State University, Raleigh, NC 27695-8202
S. Urquhart
Affiliation:
Dept. of Physics, North Carolina State University, Raleigh, NC 27695-8202
A.P. Smith
Affiliation:
Dept. of Physics, North Carolina State University, Raleigh, NC 27695-8202
Get access

Extract

We use the Scanning Transmission X-ray Microscope (STXM) at the National Synchrotron Light Source (NSLS) (1) to acquire images and spectra of polymers. To interpret data correctly, the effects X-ray radiation has on polymers must be understood. We have therefore started to characterize radiation damage in a variety of carbonyl containing polymers in two ways. First, we want to ascertain the critical dose for mass loss and the critical dose for the carbonyl in a variety of polymers and relate the critical dose to the polymer structure. (The critical dose is the radiation dose at which the optical density of the material is decreased by 1/e of its original value.) We also want to understand the damage mechanism. STXM acquires images and Near Edge X-ray Absorption Fine Structure (NEXAFS) spectra by using X-ray photons to excite inner shell electrons to unoccupied valence orbitals or to the continuum.

Type
Novel X-Ray Methods: From Microscopy to Ultimate Detectability
Information
Microscopy and Microanalysis , Volume 4 , Issue S2: Proceedings: Microscopy & Microanalysis '98, Microscopy Society of America 56th Annual Meeting, Microbeam Analysis Society 32nd Annual Meeting, Atlanta, Georgia July 12-16, 1998 , July 1998 , pp. 370 - 371
Copyright
Copyright © Microscopy Society of America

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1. Jacobsen, C. et al., Optics Communications 86, 351—364 (1991).CrossRefGoogle Scholar

2. Laibinis, P. et al., Science 254, 981—983 (1991).CrossRefGoogle Scholar

3. This Work Is Supported By A Gaann Fellowship And By National Science Foundation Award (Dmr- 9458060).Google Scholar