Details

Autor(en) / Beteiligte

• Tampo, Motonobu
• Miyabe, Masabumi
• Akaoka, Katsuaki
• Oba, Masaki
• Ohba, Hironori
• Maruyama, Yoichiro
• Wakaida, Ikuo

Titel

Enhancement of intensity in microwave-assisted laser-induced breakdown spectroscopy for remote analysis of nuclear fuel recycling

Ist Teil von

• Journal of analytical atomic spectrometry, 2014-01, Vol.29 (5), p.886-892

Erscheinungsjahr

2014

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• An enhancement of emission intensity from a laser ablation plume, obtained by coupling a pulsed microwave using a simple wire antenna, is demonstrated to compensate the sensitivity reduction of a high resolution spectrometer that is required for nuclear fuel analysis. A gadolinium oxide sample was irradiated with 2.45 GHz, 250 W microwave pulse, and passed through a loop antenna. As a result, up to 50-fold enhancement of the emission signal was achieved for gadolinium ions. The enhancement enabled us to measure the mass concentration of europium per gadolinium, ranging from 5% to 100 ppm, and based on the extrapolation of the calibration curve the detection limit for microwave-assisted laser induced breakdown spectroscopy (MA-LIBS) was estimated to be 40 ppm. This offers a flexible and compact system of MA-LIBS for nuclear fuel analysis. In this study, an enhancement of emission intensity from laser ablation plume was achieved by coupling a pulsed microwave using a simple wire antenna