Carbon multicharged ion generation from laser-spark ion source

Rahman, Md. Mahmudur; Balki, Oğuzhan; Elsayed-Ali, Hani E.

doi:10.1063/1.5110402

Cited by 3 publications

(3 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As a result, the mechanisms and regularities of forming the characteristics of multiply charged ions of a two-element laser plasma in the eld of pulsed laser radiation will be obtained experimentally and theoretically discussed [9][10][11]. In this case, new possibilities can be found for controlling beams of multiply charged ions in a two-element laser plasma in terms of quantity, charge composition, and energy range.…”

Section: Introductionmentioning

confidence: 99%

Spectra of Multiply Charged Hydrogen and Nitrogen Ions in the Composition of Two and Multi-element Laser Plasma

Japakov,

Bedilov,

Azamatov

et al. 2023

Preprint

View full text Add to dashboard Cite

The charge, energy, and spatial characteristics of multiply charged ions (hydrogen and nitrogen) of a two and multi-element laser plasma were studied using the laser ionization mass spectrometry method. The targets were made of pure C (i.e. graphite), Cu, polyethylene (CH2)n (consisting of hydrogen atoms (H) in a bound state), Cu[H] (with embedded H atoms) and Ti[H,N], Zr[H,N] (consisting of hydrogen atoms (H) and (N)) in the form of a thick cylinder with a thickness of l = 2 mm and a radius of R = 0.5 cm. It has been experimentally shown that the properties of both light and heavy ions in plasma depend both on the conditions for the entry of gas atoms into the target and on secondary processes occurring after the formation of a dense plasma on the surface of the sample. It has been found that the presence of light gas atoms significantly affects the parameters (for example, intensity and charge multiplicity) of heavier ions.

show abstract

Section: Introductionmentioning

confidence: 99%

Spectra of Multiply Charged Hydrogen and Nitrogen Ions in the Composition of Two and Multi-element Laser Plasma

Japakov,

Bedilov,

Azamatov

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

“…Creating multiply charged high-order ions is possible using ultrashort fs-pulsed laser radiation, which has a low light flux compared to short ns-pulsed laser radiation [14,15]. The time evolution of the formation of multiply charged ions under the action of ns and fs pulsed laser radiation on carbon was studied [16,17].…”

Section: Introductionmentioning

confidence: 99%

Spectra of Multiply Charged Ions in Laser Plasma Formed from Gas-Containing Targets

Japakov,

Vapaev,

Bedilov

et al. 2023

East Eur. J. Phys.

View full text Add to dashboard Cite

The paper presents the results of a study of the charge and energy characteristics of multiply charged ions excited on the surface of a single-element and hydrogen-containing multi-component element targets under the influence of laser radiation with a power density (q=108-1012 W/cm2). It has been experimentally shown that, for all used values of q laser radiation, laser-induced plasma from gas-containing targets is characterized by a lower relative yield (dN/dE) of multi-charged ions with a charge number of Z>+3, compared to the plasma produced on the surface of the single element target. Moreover, the tendency to reduce dN/dE of multi-charged ions of the multi-element target, in comparison with the relative yield of ions from the plasma of the single-element target, is more significant and it depends on the charge of the excited ions. The increase in the charge and energy state, duration, and yield of ions of the heavy component, which occurs with an increase in the content of the light component in the target, has been established. This is explained by a decrease in the efficiency of recombination processes caused by an increase in the expansion velocity of a plasma plume due to a decrease in its average mass.

show abstract

“…Because heavy ion radiotherapy is one of the most effective cancer treatment methods, numerous efforts are being made to develop laser-based carbon and heavy ion sources for medical applications [22]. For instance, the laser-assisted spark discharge technique has been successfully implemented to enhance the charge state of carbon ions from 4 + to 6 + using a nanosecond pulsed Nd:YAG laser [23,24]. The capability of producing highly charged ions from various targets has been demonstrated using an Nd:YAG laser of the power density of 8 × 10 13 W cm −2 , such as C 5+ −C 6+ , Al 8+ −A 12+ , and Ti 16+ −Ti1 8+ .…”

Section: Introductionmentioning

confidence: 99%

Charge state and Energy distribution of carbon ions and protons emitted from laser-produced graphite plasma

Ilyas¹,

Dogar²,

Qayyum³

et al. 2022

Phys. Scr.

View full text Add to dashboard Cite

The energy and charge state distribution of atomic carbon ions, carbon cluster ions, and protons emitted during Q-switched Nd:YAG laser (1064 nm/6 ns) laser irradiation of high purity graphite target was investigated by employing a time of flight ion energy analyzer (TOF-IEA). Laser fluence on the target surface was varied from 2 to 26 J/cm2. At the lower fluence range (2-6 J/cm2), multiply charged low mass odd numbered cluster ions C_n^(q+) with n= 3, 5, 7 and charge state up to 5+ and carbon atomic ions up to the charge state of 3+ were detected. For the fluence greater than 6.4 J/cm2, carbon atomic ions up to a charge state of 6+ and protons were observed. The energy distribution of various carbon ions and protons was measured at the fluence of 5.1 and 25.5 J/cm2. At 5.1 J/cm2, the measured energy range for carbon cluster ions C_3^(q+) and carbon C_1^(q+)was 0.2-3.1 keV and 0.2-1.2 keV, respectively. At 25.5 J/cm2, the energy of carbon ions C_1^(q+) (q=2-4) was in the range of 0.4-3.8 keV. Surprisingly, energetic protons with maximum energy of 1.5 keV and considerable intensity were detected at 25.5 J/cm2. The bi-component structure of ion energy distribution suggested a complex ion accelerating mechanism, which is discussed within the framework of the electrostatic model.

show abstract

Carbon multicharged ion generation from laser-spark ion source

Cited by 3 publications

References 48 publications

Spectra of Multiply Charged Hydrogen and Nitrogen Ions in the Composition of Two and Multi-element Laser Plasma

Spectra of Multiply Charged Hydrogen and Nitrogen Ions in the Composition of Two and Multi-element Laser Plasma

Spectra of Multiply Charged Ions in Laser Plasma Formed from Gas-Containing Targets

Charge state and Energy distribution of carbon ions and protons emitted from laser-produced graphite plasma

Contact Info

Product

Resources

About