| EXPECTED DAMAGES DUE TO GCR ON SPACE ELECTRONICS AND SPACESHIP MATERIALS BY ETCHED NUCLEAR TRACKS SHAPE Laszlo Sajo Bohus1; Hardev Singh Virk2; 1UNIVERSIDAD SIMON BOLIVAR, NUCLEAR LAB, Caracas, Venezuela; 2SGGS WORLD UNIVERSITY FATEHGARH SAHIB, SURREY, India; PAPER: 242/Physics/Regular (Oral) SCHEDULED: 15:55/Wed. 30 Nov. 2022/Andaman 2 ABSTRACT: Matter in the interplanetary missions is exposed to Galactic Cosmic Rays (GCR) enhanced by intermittent solar flare energetic matter. These impinging GCR on spaceship materials as well as astronaut’s body, leave a variable damaged volume. That can be indirectly visualized by PADC detectors. Passive matter has been employed advantageously for space dosimetry; in that, etched nuclear tracks provide information on the LET value, mass and energy of impinging radiation. Here we suggest employing the etched nuclear tracks observed on the PADC detector surface, to predict damages in space matter. Information is obtained from track´s geometrical shape such as pit aperture, track length, direction, and nuclear reaction product as well as the impinging beam intensity, energy and particle mass. The suggested method provides insight of permanent or temporal atomic and molecular alteration in matter structure, space electronics including quantum computing expected failure rate. References: [1] J. A. Mireles, A. Lopez, L. Sajo-Bohus and M. Castro-Colin. GEANT4 dose estimations of solar protons: Al and PMMA-Bi2O3 shielding for space exploration. In press; Revista Mexicana de Física, 2023 [2] Martínez-Ovalle, S. A., Garcia-Rodriguez, A. M., Vega-Carrillo, H. R., Sandoval-Garzon, M. A., Jaramillo Garzón, W., and Sajo-Bohus, L. (2020). Shielding For Transporting An 241am-Be Source For Industrial Applications. Applied Radiation and Isotopes, 109175. doi:10.1016/j.apradiso.2020.109175. [3] S. Kodaira, M. Naito, Y. Uchihori, H. Hashimoto, H. Yano, and A. Yamagishi. Space radiation Dosimetry at the Exposure Facility of the ISS for Tanpopo Mission. Astrobiology 2021 21:12, 1473-1478 [4] Pálfalvi, J.K., Akatov, Yu., Sajó-Bohus, L., Szabó, J., Eördögh, I., 2003. Cosmic particle induced reaction detection with SSNTD stack exposed on-board of the international space station. in: Gadioli, E. (Ed.), Proceedings of the 10th International Conference on Nuclear Reaction Mechanisms, Varenna, Italy, June 9–12, 2003. Ricerca Scientifica Educ. Permanente, 122 (Suppl), 655–660. [5] Pálfalvi, J.K., Akatov, Yu., Szabó, J., Sajó-Bohus, L., Eördögh, I., 2004. Evaluation of SSNTD stacks exposed on the ISS. Rad. Prot. Dos. 110, 393–397. [6] Pálfalvi, J.K., Akatov, Yu., Szabó, J., Sajó-Bohus, L., Eördögh, I., 2004. Evaluation of SSNTD stacks exposed on the ISS. Rad.Prot. Dos. 110, 393–397. [7] Kinchin, G.H. and Pease, R.S., 1955. The Displacement of Atoms in Solids by Radiation. Reports on Progress in Physics, 18, 1-51. [8] L. Sajó-Bohus, J. K. Pálfalvi, O. Arevalo, E. D. Greaves, P. Németh, D. Palacios, Szabo J. and I. Eördögh. Neutron Induced Complex Reaction Analysis with 3D Nuclear Track Simulation Radiation Measurement 40 (2005), 442-447 |
