Display options
Cite
Rojas-Herrera J, Rinderknecht HG, Zylstra AB, et al. Impact of x-ray dose on the response of CR-39 to 1-5.5 MeV alphas. Rev Sci Instrum. 2015;86(3):033501doi: 10.1063/1.4913906.
Rojas-Herrera, J., Rinderknecht, H. G., Zylstra, A. B., Gatu Johnson, M., Orozco, D., Rosenberg, M. J., Sio, H., Seguin, F. H., Frenje, J. A., Li, C. K., & Petrasso, R. D. (2015). Impact of x-ray dose on the response of CR-39 to 1-5.5 MeV alphas. The Review of scientific instruments, 86(3), 033501. https://doi.org/10.1063/1.4913906
Rojas-Herrera, J, et al. "Impact of x-ray dose on the response of CR-39 to 1-5.5 MeV alphas." The Review of scientific instruments vol. 86,3 (2015): 033501. doi: https://doi.org/10.1063/1.4913906
Rojas-Herrera J, Rinderknecht HG, Zylstra AB, Gatu Johnson M, Orozco D, Rosenberg MJ, Sio H, Seguin FH, Frenje JA, Li CK, Petrasso RD. Impact of x-ray dose on the response of CR-39 to 1-5.5 MeV alphas. Rev Sci Instrum. 2015 Mar;86(3):033501. doi: 10.1063/1.4913906. PMID: 25832223.
Copy Download .nbib Format: NLM
Share it on

Rev Sci Instrum. 2015 Mar;86(3):033501. doi: 10.1063/1.4913906.

Impact of x-ray dose on the response of CR-39 to 1-5.5 MeV alphas.

The Review of scientific instruments

J Rojas-Herrera, H G Rinderknecht, A B Zylstra, M Gatu Johnson, D Orozco, M J Rosenberg, H Sio, F H Seguin, J A Frenje, C K Li, R D Petrasso

Affiliations

  1. Plasma Science and Fusion Center, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.

PMID: 25832223 DOI: 10.1063/1.4913906

Abstract

The CR-39 nuclear track detector is used in many nuclear diagnostics fielded at inertial confinement fusion (ICF) facilities. Large x-ray fluences generated by ICF experiments may impact the CR-39 response to incident charged particles. To determine the impact of x-ray exposure on the CR-39 response to alpha particles, a thick-target bremsstrahlung x-ray generator was used to expose CR-39 to various doses of 8 keV Cu-Kα and Kβ x-rays. The CR-39 detectors were then exposed to 1-5.5 MeV alphas from an Am-241 source. The regions of the CR-39 exposed to x-rays showed a smaller track diameter than those not exposed to x-rays: for example, a dose of 3.0 ± 0.1 Gy causes a decrease of (19 ± 2)% in the track diameter of a 5.5 MeV alpha particle, while a dose of 60.0 ± 1.3 Gy results in a decrease of (45 ± 5)% in the track diameter. The reduced track diameters were found to be predominantly caused by a comparable reduction in the bulk etch rate of the CR-39 with x-ray dose. A residual effect depending on alpha particle energy is characterized using an empirical formula.

Publication Types