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A gas-jet transport and catcher technique for on-line production of radioactive ion beams using an electron cyclotron resonance ion-source
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10.1063/1.4792594
/content/aip/journal/rsi/84/3/10.1063/1.4792594
http://aip.metastore.ingenta.com/content/aip/journal/rsi/84/3/10.1063/1.4792594

Figures

Image of FIG. 1.
FIG. 1.

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.

Image of FIG. 2.
FIG. 2.

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.

Image of FIG. 3.
FIG. 3.

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.

Image of FIG. 4.
FIG. 4.

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.

Image of FIG. 5.
FIG. 5.

(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.

Image of FIG. 6.
FIG. 6.

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.

Image of FIG. 7.
FIG. 7.

Schematic layout of gas-jet coupled charge breeder with internal catcher to be used in forthcoming experiments.

Tables

Generic image for table
Table I.

ECR pressure for various gases in target chamber.

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/content/aip/journal/rsi/84/3/10.1063/1.4792594
2013-03-04
2014-04-20
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: A gas-jet transport and catcher technique for on-line production of radioactive ion beams using an electron cyclotron resonance ion-source
http://aip.metastore.ingenta.com/content/aip/journal/rsi/84/3/10.1063/1.4792594
10.1063/1.4792594
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