Ali Khumaeni
Diponegoro University
120 Papers
123 Citations
Ali Khumaeni is an academic researcher from Diponegoro University. The author has contributed to research in topics: Laser & Laser-induced breakdown spectroscopy. The author has an hindex of 11, co-authored 94 publications. Previous affiliations of Ali Khumaeni include University of Fukui & Japan Atomic Energy Agency.
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Papers
Synthesis of silver nanoparticles using laser ablation method utilizing Nd:YAG laser
Mohammad Zamakhsari Alhamid,Beny S. Hadi,Ali Khumaeni +2 more
- 27 Dec 2019
TL;DR: In this paper, a high-purity silver plate (99, 95 %) was immersed in 25"ml pure aquades placed in a petri dish with a diameter 50"mm, and a pulsed (Nd : YAG) laser was focused on the gold sample target by a convex lens with a focal length of 30"mm.
Laser ablation absorption spectroscopy for isotopic analysis of plutonium: Spectroscopic properties and analytical performance
Masabumi Miyabe,Masaki Oba,Kyunghun Jung,H. Iimura,Katsuaki Akaoka,Masaaki Kato,Haruyoshi Otobe,Ali Khumaeni,Ikuo Wakaida +8 more
TL;DR: In this article, the absorption properties of atomic species of plutonium were investigated by combining laser ablation and resonance absorption techniques for the analysis of a plutonium oxide sample for 17 transitions of Pu atoms and ions using Voigt profile fitting of the recorded absorption spectra.
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H-D Analysis Employing Energy Transfer from Metastable Excited-State He in Double-Pulse LIBS with Low-Pressure He Gas.
Marincan Pardede,Tjung Jie Lie,Javed Iqbal,Muhammad Bilal,Rinda Hedwig,Muliadi Ramli,Ali Khumaeni,Wahyu Setia Budi,Nasrullah Idris,Syahrun Nur Abdulmadjid,Alion Mangasi Marpaung,Indra Karnadi,Ivan Tanra,Zener Sukra Lie,Hery Suyanto,Davy Putra Kurniawan,Koo Hendrik Kurniawan,Kiichiro Kagawa,May-On Tjia +18 more
TL;DR: A laser-induced-breakdown-spectroscopy (LIBS) experiment with a unique double-pulse setup and operated in low-pressure He ambient gas is performed to study the detection of light elements as well as elements of high excitation energies, such as fluorine and chlorine, which are usually difficult to detect using ordinary LIBS techniques.
The role of microwaves in the enhancement of laser-induced plasma emission
TL;DR: In this paper, the effect of microwaves (MWs) on the enhancement of plasma emission achieved by laser-induced breakdown spectroscopy (LIBS) was studied experimentally and the results confirmed that when the electromagnetic field was introduced into the laser plasma region by the MWs, the lifetime of the plasma was extended from 50 to 500 µs, similar to the MW duration.
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The effect of ambient gas on measurements with microwave-assisted laser-induced plasmas in MA-LIBS with relevance for the analysis of nuclear fuel
TL;DR: In this paper, the effect of ambient gas on measurements with microwave-assisted laser-induced plasma in microwave assisted laserinduced breakdown spectroscopy (MA-LIBS) was studied with relevance for the analysis of nuclear fuel.
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