The effect of the dc bias voltage on the x-ray bremsstrahlung and beam intensities of medium and highly charged ions of argon

Rodrigues, G.; Lakshmy, P. S.; Baskaran, R.; Kanjilal, D.; Roy, A.

doi:10.1063/1.3277203

Cited by 4 publications

(3 citation statements)

References 10 publications

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“…The high current injector (HCI) [1] is an alternate injector to superconducting LINAC [2] for obtaining more energy gain along with intense ion beam current as compared to existing Pelletron injector [3]. It is based on the high temperature superconducting ECR ion source named as PKDELIS [4,5]. The ions of A/q ≤ 6 will be analysed by a large acceptance combined function 90 deg.…”

Section: Introduction To High Current Injectormentioning

confidence: 99%

Achromatic beam transport of High Current Injector

Kumar

Mandal

2016

J. Inst.

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Section: Introduction To High Current Injectormentioning

confidence: 99%

Achromatic beam transport of High Current Injector

Kumar

Mandal

2016

J. Inst.

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“…This gives rise to higher beam intesity of the highly charged ions 2 due to better confinement in the case of electron cyclotron resonance (ECR) ion sources. In our earlier experiments, the emittance of various ion beams from an ECR ion source were measured 3 to obtain inputs in the design of beam transport and to match the acceptances of the downstream radio frequency quadrupole (RFQ) and drift tube linac (DTL) accelerators of the high current injector (HCI) being developed; 4 additionally, we have measured the effect of the negative bias voltage on the bremstraahlung x-rays and beam intensities of medium and highly charged ions of argon 5 keeping all other source parameters fixed. This study helped us to have a strong diagnostic tool to tune the ion source for the production of medium and highly charged ions.…”

Section: Introductionmentioning

confidence: 99%

Effect of source tuning parameters on the plasma potential of heavy ions in the 18 GHz high temperature superconducting electron cyclotron resonance ion source

Rodrigues

Baskaran

Kukrety

et al. 2012

Review of Scientific Instruments

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Plasma potentials for various heavy ions have been measured using the retarding field technique in the 18 GHz high temperature superconducting ECR ion source, PKDELIS [C. Bieth, S. Kantas, P. Sortais, D. Kanjilal, G. Rodrigues, S. Milward, S. Harrison, and R. McMahon, Nucl. Instrum. Methods B 235, 498 (2005); D. Kanjilal, G. Rodrigues, P. Kumar, A. Mandal, A. Roy, C. Bieth, S. Kantas, and P. Sortais, Rev. Sci. Instrum. 77, 03A317 (2006)]. The ion beam extracted from the source is decelerated close to the location of a mesh which is polarized to the source potential and beams having different plasma potentials are measured on a Faraday cup located downstream of the mesh. The influence of various source parameters, viz., RF power, gas pressure, magnetic field, negative dc bias, and gas mixing on the plasma potential is studied. The study helped to find an upper limit of the energy spread of the heavy ions, which can influence the design of the longitudinal optics of the high current injector being developed at the Inter University Accelerator Centre. It is observed that the plasma potentials are decreasing for increasing charge states and a mass effect is clearly observed for the ions with similar operating gas pressures. In the case of gas mixing, it is observed that the plasma potential minimizes at an optimum value of the gas pressure of the mixing gas and the mean charge state maximizes at this value. Details of the measurements carried out as a function of various source parameters and its impact on the longitudinal optics are presented.

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“…The most popular approach is based on the electron cyclotron resonance [6,7]. Other solutions make use of electron [8] or laser [9,10] beams for multiple ionization.…”

Section: Production Of Doubly Charged Ions Using a Hollow Cathodementioning

confidence: 99%

Production of Doubly Charged Ions Using a Hollow Cathode Ion Source with an Evaporator

et al. 2013

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The paper describes the production of doubly charged ions from solids and gases using a hollow cathode ion source with an internal evaporator heated by a spiral cathode lament and arc discharge. 15 cm −3 ) with doubly charged ions. Characteristics of the ion source are presented and discussed in order to choose the optimal working parameters. A brief presentation of numerical model of doubly and singly charged ions in the ion source is given. The calculated results (dependences of ion current on the anode voltage) are in good agreement with the experimental data.

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The effect of the dc bias voltage on the x-ray bremsstrahlung and beam intensities of medium and highly charged ions of argon

Cited by 4 publications

References 10 publications

Achromatic beam transport of High Current Injector

Achromatic beam transport of High Current Injector

Effect of source tuning parameters on the plasma potential of heavy ions in the 18 GHz high temperature superconducting electron cyclotron resonance ion source

Production of Doubly Charged Ions Using a Hollow Cathode Ion Source with an Evaporator

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