Article ID Journal Published Year Pages File Type
1863897 Physics Letters A 2014 7 Pages PDF
Abstract

•Helium iso-ion beam profile and angular distributions were studied in the 4 kJ APF device.•Large-area 1 mm-thick polycarbonate detectors were processed by 50 Hz-HV ECE.•Helium ion beam profile and distributions were observed by unaided eyes in a single detector.•Helium ion profile has ring-shaped distributions with energies lower at the ring location.•Helium iso-ion track density, diameter and energy distributions are estimated.

Helium ion beam profile, angular and iso-ion beam distributions in 4 kJ Amirkabir plasma focus (APF) device were effectively observed by the unaided eyes and studied in single 1 mm-thick large-diameter (20 cm) polycarbonate track detectors (PCTD). The PCTDs were processed by 50 Hz–HV electrochemical etching using a large-size ECE chamber. The results show that helium ions produced in the APF device have a ring-shaped angular distribution peaked at an angle of ∼±60°∼±60° with respect to the top of the anode. Some information on the helium ion energy and distributions is also provided. The method is highly effective for ion beam studies.

Related Topics
Physical Sciences and Engineering Physics and Astronomy Physics and Astronomy (General)
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