Laser-induced breakdown spectroscopy with low-energy laser pulses

2000 ◽  
Author(s):  
G. W. Rieger ◽  
M. Taschuk ◽  
Ying Y. Tsui ◽  
Robert Fedosejevs
Keyword(s):  
Laser Pulses ◽  
Low Energy ◽  
Laser Induced Breakdown Spectroscopy ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown ◽  
Energy Laser ◽  
Low Energy Laser

scholarly journals Characterization of near-infrared low energy ultra-short laser pulses for portable applications of laser induced breakdown spectroscopy

2007 ◽  
Vol 15 (21) ◽  
pp. 14044 ◽  
Author(s):  
Alexander W. Schill ◽  
David A. Heaps ◽  
Dimitra N. Stratis-Cullum ◽  
Bradley R. Arnold ◽  
Paul M. Pellegrino
Keyword(s):  
Near Infrared ◽  
Laser Pulses ◽  
Low Energy ◽  
Laser Induced Breakdown Spectroscopy ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown ◽  
Short Laser Pulses

Analysis of Enhanced Laser-Induced Breakdown Spectroscopy with Double Femtosecond Laser Pulses

2015 ◽  
Vol 17 (2) ◽  
pp. 147-152 ◽  
Author(s):  
Jie Shen ◽  
Zhengcai Yang ◽  
Xiaoliang Liu ◽  
Yanchao Shi ◽  
Peixi Zhao ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Laser Pulses ◽  
Femtosecond Laser Pulses ◽  
Laser Induced Breakdown Spectroscopy ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown

Evaluation of Yields of γ-Rays Produced by Electrons from Gas Jets Irradiated by Low-Energy Laser Pulses: Towards “Virtual Radioisotopes”

2011 ◽  
Vol 50 (4R) ◽  
pp. 042702 ◽  
Author(s):  
Yuji Oishi ◽  
Takuya Nayuki ◽  
Alexei Zhidkov ◽  
Takashi Fujii ◽  
Koshichi Nemoto
Keyword(s):  
Laser Pulses ◽  
Low Energy ◽  
Gas Jets ◽  
Energy Laser ◽  
Γ Rays ◽  
Low Energy Laser

scholarly journals Feasibility Study on Discrimination of Neo-plastic and Non-Neoplastic Gastric Tissues Using Spark Discharge Assisted Laser Induced Breakdown Spectroscopy

2018 ◽  
Vol 10 (1) ◽  
pp. 64-69 ◽  
Author(s):  
Aida Seifalinezhad ◽  
Maryam Bahreini ◽  
Mohammad Mahdi Hassani Matin ◽  
Seyed Hassan Tavassoli
Keyword(s):  
Light Emission ◽  
In Vitro Study ◽  
Cost Effective ◽  
Laser Pulses ◽  
Spark Discharge ◽  
Plasma Radiation ◽  
Laser Induced Breakdown Spectroscopy ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown

Introduction: The present work is a novel in vitro study that evaluated the possibility of diagnosing neoplastic from nonneoplastic gastric tissues using spark discharge assisted laser induced breakdown spectroscopy (SD-LIBS) method. Methods: In these experiments, the low energy laser pulses ablated a tiny amount of tissue surface leading to plasma formation. Then, a spark discharge was applied to plasma in order to intensify the plasma radiation. Light emission from plasma was recorded as spectra which were analyzed. Gastric tissues of 5 people were studied through this method. Results: The SD-LIBS technique had the potential to discriminate normal and cancerous tissues based on the significant differences in the intensities of some particular elements. The comparison of normalized calcium (Ca) and magnesium (Mg) peaks of neoplastic and nonneoplastic gastric tissues could be viewed as a practical measure for tissue discrimination since Ca and Mg peaks in spectra of neoplastic were noticeably higher than nonneoplastic. Conclusion: Considering the identification of gastric cancer, the applied method in these experiments seems quite fast, noninvasive and cost-effective with respect to other conventional methods. The significant increment of specific Ca and Mg lines of neoplastic gastric tissues in comparison to the nonneoplastic ones can be considered as valuable information that might bring about tissue classification. The number of samples in this work, however, was not sufficient for a decisive conclusion and further researches is needed to generalize this idea.

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