Parametric study of fiber-optic laser-induced breakdown spectroscopy for elemental analysis of Z3CN20-09M steel from nuclear power plants

Qiu, Yan; Wu, Jian; Li, Xingwen; Liu, Tao; Xue, Fei; Yang, Zefeng; Zhang, Zhi; Han, Yuexin

doi:10.1016/j.sab.2018.07.018

Cited by 31 publications

(18 citation statements)

References 41 publications

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“…In our calibration work, ∆E ul should take the value at a Cr line 396.368 nm (3.13 eV), which is the maximum energy gap used in the calibration. According to our previous work [18], the maximum temperature is assumed to be 11 000 K. Then, the lowest limit for n e is 5 × 10 15 cm −3 , which is always lower than the minimum plasma density ~10 16 cm −3 during the period of 1-4 μs after the laser pulse. We first used this conventional method to establish the calibration curve.…”

Section: Internal Standardizationmentioning

confidence: 99%

“…In our previous work, a FO-LIBS system was set up and optimized for elemental analysis of the main pipe steel. The reduction of self-absorption effects was accomplished under the optimal parameters of the system [18]. Although significant progress has been made, as mentioned above, the FO-LIBS system is still far from being widely used in nuclear power plants.…”

Section: Introductionmentioning

confidence: 99%

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Plasma characteristics and element analysis of steels from a nuclear power plant based on fiber-optic laser-induced breakdown spectroscopy

Han

Qiu

et al. 2018

J. Phys. D: Appl. Phys.

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The laser-produced plasma and laser-induced breakdown spectroscopy (LIBS) of two steels from a nuclear power plant, including the Z3CN20-09M steel used for the main reactor coolant pipes, and the 16MND5 steel used for nuclear reactor pressure vessels. These were investigated based on a fiber-optic LIBS system. Under the same input laser energy, the laserproduced plasma from the Z3CN20-09M steel had a weaker emission intensity compared to the 16MND5 steel, probably due to a greater content of Cr. Thus, plasma from the Z3CN20-09M steel had a larger kinetic energy and induced a faster expansion shockwave in air. Calibrations of the fiber-optic LIBS system by the means of internal standardization, support vector regression and random forest regression were set up. For the Cr element, as a major element in Z3CN20-09M (19.33wt.%), it was determined with the relative error controlled under 3.5%; as a trace element (0.11wt.%) in 16MND5 it was measured with the best rootmean-square error of prediction as 0.032wt.%, and the Mn content (1.19-1.51wt.%) in both steels was measured with the relative error around 10%.

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Section: Internal Standardizationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Plasma characteristics and element analysis of steels from a nuclear power plant based on fiber-optic laser-induced breakdown spectroscopy

Han

Qiu

et al. 2018

J. Phys. D: Appl. Phys.

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“…These measurements include total internal reection X-ray uorescence (TXRF) and laser-induced breakdown spectroscopy (LIBS). [5][6][7][8][9][10][11] Determining uranium with TXRF has persistent problems with pretreatment and a long analysis time estimated at 2 h 50 min. 6 Without any pretreatment, LIBS guarantees fast in situ determination of the uranium content inside the reactor core via a long optical ber.…”

Section: Introductionmentioning

confidence: 99%

Plasma emission intensity expansion of Zr metal and Zr oxide via microwave enhancement laser-induced breakdown spectroscopy

Ikeda¹,

Soriano²,

Wakaida

2023

J. Anal. At. Spectrom.

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“…has received considerable attention from scholars. 4,5 It has been utilized in various fields, such as coal analysis 6,7 , nuclear industry, 8 aerosols, 9 biomedicine, 10,11 and Mars exploration. 12,13 The analytical detection of SSAs via LIBS can quantify the main components of SSAs and thus detect marine ecosystems and climate change in real time.…”

Section: Introductionmentioning

confidence: 99%

Correction Of Self-Absorption Effect In Laser-Induced Breakdown Spectroscopy Analysis For Sea Salt Aerosols Using A Duplicating Mirror

Guo¹

2022

At.Spectrosc.

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Sea salt aerosols significantly impact marine ecosystems and climate change; however, self-absorption effects unavoidably occur in the detection of sea salt aerosols via laser-induced breakdown spectroscopy (LIBS). This work illustrates the application of a renowned replica plasma method for self-absorption correction in the detection of sea salt aerosols via LIBS. Two sets of spectral data were obtained by adding a duplicating mirror behind the plasma, and the self-absorption correction factor was calculated using a previously described method. Consequently, the experimental results show a marked improvement in the linearity of the calibration curve. The determination coefficients of linear fitting were above 0.99, and the root mean square error of the cross-validation RMSECV was negligible. The duplicating mirror method for self-absorption correction in the detection of sea salt aerosols via LIBS can thus achieve high accuracy and stability within a certain range and therefore can prove useful for sea salt aerosol, aerosol, and gas detection.

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Parametric study of fiber-optic laser-induced breakdown spectroscopy for elemental analysis of Z3CN20-09M steel from nuclear power plants

Cited by 31 publications

References 41 publications

Plasma characteristics and element analysis of steels from a nuclear power plant based on fiber-optic laser-induced breakdown spectroscopy

Plasma characteristics and element analysis of steels from a nuclear power plant based on fiber-optic laser-induced breakdown spectroscopy

Plasma emission intensity expansion of Zr metal and Zr oxide via microwave enhancement laser-induced breakdown spectroscopy

Correction Of Self-Absorption Effect In Laser-Induced Breakdown Spectroscopy Analysis For Sea Salt Aerosols Using A Duplicating Mirror

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