Vacuum System of the Ion Source and Injection Line of a High Current Compact Cyclotron

Pandit, V.S.; Yadav, R C; Pal, G.; Nandi, C.; Goswami, A.; Babu, P. Sing; Srivastava, Saurabh; Misra, Anuraag

doi:10.1088/1742-6596/390/1/012066

Cited by 2 publications

(1 citation statement)

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“…The injection system consists of a 2.45 GHz microwave ion source ($20 mA at 100 keV) and two solenoid magnets of physical length of 40 cm to transport and match the proton beam at the entrance of spiral inflector. 19 The total length of the transport line is 280 cm. In the present simulation work, we have used the soft edge magnetic field profile for solenoids, obtained by first computing the magnetic field using 3D code and fitting it with an analytic function.…”

Section: Resultsmentioning

confidence: 99%

Effect of subdominant species on the evolution of intense primary beam in a low energy beam transport line

2013

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The dynamics of space-charge-dominated multispecies beam with different distributions has been studied in a solenoid based low energy beam transport line using a particle-in-cell simulation method. Results are presented in wide parameter regimes covering emittance dominated as well as space charge dominated multispecies beams consisting of p, H2+, and H3+ beams. Simulation shows the formation of hollow distribution of H2+ and H3+ beams around the desired proton beam and separation is more distinct as the fraction of proton is increased. The hollow formation is almost independent of combination of H2+ and H3+ beams, once the fraction of proton beam is fixed. The emittance growth of proton is found to increase sharply in the space-charge-dominated regime and is more in the cases where proton fraction is low.

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Section: Resultsmentioning

confidence: 99%