Schematic layout of gas-jet coupled ECR with internal catcher. The labeled components are – (1) Capillary, (2) gas-jet, (3) skimmer chamber, (4) injection box, (5) aerosols, (6) catcher, (7) roots pump, (8) skimmer, (9) turbo molecular pump (TMP), (10) plasma chamber, (11) plasma zone, (12) plasma electrode, (13) puller electrode. Inset shows the details of the catcher used in the off-line and on-line studies.
Floor diagram of the VECC K130 cyclotron and the RIB beam-line. The labeled items are: D1–D4: HPGe detectors; ECR: electron cyclotron resonance ion-source; FC1–FC3: Faraday cups; RFQ: radiofrequency quadrupole linac; QQ: quadrupole doublet; L1–L3: heavy-ion linac modules; RB: Re-buncher; Sol: solenoid magnet.
Schematic layout of the target chamber. The labeled items are: (1) window, (2) target, (3) target chamber, (4) gas-inlet, (5) Faraday cup, (6) collection capillary.
SEM image of central region of copper coated RVCF (a) before inserting in ECR, and (b) after 20 h operation inside the ECR ion-source during one of the cyclotron runs.
(a) Typical measured γ-ray spectrum after ECR ion-source (at FC1) indicating extraction of radioactive ions of argon and potassium, and (b) measured γ-ray spectrum at FC2 for 14O. Please note different scale for γ-ray energies in the two spectra.
A portion of γ-ray spectrum from α-particle induced fission of 232Th (a) measured in detector D1 placed before the ECR ion-source and (b) in detector D2 placed at FC1 after the ion-source.
Schematic layout of gas-jet coupled charge breeder with internal catcher to be used in forthcoming experiments.
ECR pressure for various gases in target chamber.
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