Ion Beam And Plasma Jet Generated By A 3 kJ Plasma Focus

Lim, L. K.; Ngoi, S. K.; Yap, S. L.; Wong, C. S.; Saadah, A. R.

doi:10.1063/1.3192291

Cited by 3 publications

(3 citation statements)

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“…The short presence of high temperature caused the sudden solidification and may form physically unbalanced shape such as beads on top of the tip of the NWs as shown in Figure 2(a). Particle spots can be seen on the surface of the Ar beam treated NWs where it may be due to the presence of copper particle impurities from the Ar beam on the surface [18]. It has also been reported that for Zn NWs under the electron beam irradiation, the flat surface of the NWs gradually melted into nanoparticles [20].…”

Section: Resultsmentioning

confidence: 92%

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Study on the effect of Ar ion beam bombardment on ZnO nanowires

Dee

Yap

Yap³

et al. 2012

AIP Conference Proceedings

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Articles you may be interested inChemical effect of Si+ ions on the implantation-induced defects in ZnO studied by a slow positron beam J. Appl. Phys. 113, 043506 (2013); 10.1063/1.4789010Effect of ion bombardment on the field emission property of tetrapod ZnO Abstract. High energy Argon (Ar) ion beam has been used to fire on the ZnO nanowires (NWs) on quartz substrate. ZnO NWs were found to have liquefied from the tips of the NWs to form circular tips from the original sharp ends after single shots of Ar beam. The irreversible re-solidification of the liquid melt of NWs was examined by scanning electron microscopy. Firing of Ar beams for 1, 5 and 10 shots have been done on different samples to study the effect of single and continuously multiple Ar ion beams bombardment on the ZnO NWs. X-ray Diffraction (XRD) and Photoluminescence (PL) for the post-treated samples have been studied in order to understand the liquefaction and re-solidification process of the ZnO NWs caused by Ar beam bombardment. The bombardment by this high energy Ar ion beam may possibly provide some information about the melting process due to thermal effect. These may also indirectly provide information for understanding of the growth of ZnO NWs.

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Section: Resultsmentioning

confidence: 92%

“…A schematic diagram of the Ar beam generator device is shown in Figure 1. The detail operation for this Ar beam generator was well-described in a previous publication [18]. The samples were examined by photoluminescence (PL), scanning electron microscope (SEM) and X-ray diffraction (XRD).…”

Section: Experimental Detailmentioning

confidence: 99%

Study on the effect of Ar ion beam bombardment on ZnO nanowires

Dee

Yap

Yap³

et al. 2012

AIP Conference Proceedings

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“…Interestingly, the optical microscope image showed that ions tracks were observed on the CR-39 sample at 30 0 to 90 0 except at the end on direction. It has been reported in literature, there is the presence of plasma jet followed the emission of ion beam [17]. It is speculated that the arrival of plasma jet on the end on direction CR-39 nuclear track detector at much later time after the ion beam irradiation might cause the trails made by the ions to be invisible.…”

Section: Resultsmentioning

confidence: 98%

Diagnostics of ion beam generated from a Mather type plasma focus device

Lim¹,

Ngoi²,

Wong³

et al. 2014

AIP Conference Proceedings

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Diagnostics of ion beam emission from a 3 kJ Mather-type plasma focus device have been performed for deuterium discharge at low pressure regime. Deuterium plasma focus was found to be optimum at pressure of 0.2 mbar. The energy spectrum and total number of ions per shot from the pulsed ion beam are determined by using biased ion collectors, Faraday cup, and solid state nuclear track detector CR-39. Average energy of the ion beam obtained is about 60 keV. Total number of the ions has been determined to be in the order of 10 11 per shot. Solid state nuclear track detectors (SSNTD) CR39 are employed to measure the particles at all angular direction from end on (0˚) to side on (90˚). Particle tracks are registered by SSNTD at 30˚ to 90˚, except the one at the end-on 0 ˚.

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