Upgrade of the resonance ionization laser ion source at ISOLDE on-line isotope separation facility: New lasers and new ion beams

2012 ◽  
Vol 83 (2) ◽  
pp. 02A903 ◽  
Author(s):  
V. N. Fedosseev ◽  
L.-E. Berg ◽  
D. V. Fedorov ◽  
D. Fink ◽  
O. J. Launila ◽  
...  
Keyword(s):  
Isotope Separation ◽  
Ion Beams ◽  
Ion Source ◽  
Resonance Ionization ◽  
Laser Ion Source ◽  
On Line

scholarly journals ISOLDE target and ion source chemistry

2001 ◽  
Vol 89 (11-12) ◽  
Author(s):  
U. Köster
Keyword(s):  
Liquid Metals ◽  
Molecular Form ◽  
Isotope Separation ◽  
Thick Target ◽  
Ion Source ◽  
Resonance Ionization ◽  
Surface Ionization ◽  
Laser Ion Source ◽  
Reaction Products ◽  
On Line

For the production of radioactive ion beams by means of the ISOL (isotope separation on-line) method in which the nuclei of interest are stopped in a thick target, chemistry plays a crucial role. It serves to separate the nuclear reaction products in atomic or molecular form from the bulk target and to transfer them efficiently to an ion source. This article gives an overview of ISOLDE radiochemical methods where targets (liquid metals, solid metals, carbides and oxides) and ion sources are optimized with respect to efficiency, speed and chemical selectivity. Rather pure beams of non-metals and volatile metals can be obtained with a temperature-controlled transfer line acting as thermo-chromatograph. For less volatile metals the temperature of the target and ion source units needs to be kept as high as possible, but a selective ion source can be used: positive surface ionization for metals with ionization potentials below about 6 eV and the RILIS (resonance ionization laser ion source) technique for most other metals.

scholarly journals Developments towards the delivery of selenium ion beams at ISOLDE

2019 ◽  
Vol 55 (10) ◽  
Author(s):  
K. Chrysalidis ◽  
J. Ballof ◽  
Ch. E. Düllmann ◽  
V. N. Fedosseev ◽  
C. Granados ◽  
...  
Keyword(s):  
Maximum Yield ◽  
Target Material ◽  
Ion Beams ◽  
Ion Source ◽  
Resonance Ionization ◽  
Laser Ion Source ◽  
On Line ◽  
Ionization Scheme ◽  
Ionization Methods ◽  
Resonance Laser

Abstract. The production of selenium ion beams has been investigated at the CERN-ISOLDE facility via two different ionization methods. Whilst molecular selenium (SeCO) beams were produced at ISOLDE since the early 1990s, recent attempts at reliably reproducing these results have so far been unsuccessful. Here we report on tests of a step-wise resonance laser ionization scheme for atomic selenium using the ISOLDE Resonance Ionization Laser Ion Source (RILIS). For stable selenium an ionization efficiency of 1% was achieved. During the first on-line radioisotope production tests, a yield of $ \approx 2.4 \times 10^4$≈2.4×104 ions/μC was measured for 71Se+, using a ZrO2 target with an electron impact ion source. In parallel, an approach for extraction of molecular carbonyl selenide (SeCO) beams was tested. The same ion source and target material were used and a maximum yield of $ \approx 3.6\times 10^5$≈3.6×105 ions/μ C of 71SeCO+ was measured.

scholarly journals Charting Terra Incognita at Alto and S3

2018 ◽  
Vol 193 ◽  
pp. 04012
Author(s):  
Serge Franchoo ◽  
Maher Cheikh Mhamed ◽  
Ruohong Li ◽  
Enrique Minaya Ramirez ◽  
Liss Vazquez-Rodriguez ◽  
...  
Keyword(s):  
Isotope Separation ◽  
Ion Source ◽  
Low Energy ◽  
Nuclear Spectroscopy ◽  
Laser Ion Source ◽  
Terra Incognita ◽  
Energy Facility ◽  
On Line ◽  
The Common ◽  
Set Up

Charting Terra Incognita is a project grant that brings together the IPN Orsay, CSNSM Orsay and Irfu-SPHN laboratories around the common development of knowhow, equipment and techniques for mass spectrometry and nuclear spectroscopy at the low-energy branch of the new S3 spectrometer at Ganil, where likewise the Reglis set-up for intrajet laser spectroscopy is entering its final phase of construction. At the same time its concerted action initiates and sets the pace for the corresponding precursor physics programme at the Alto on-line isotope-separation facility, based on the photofission of uranium. We also collect a review of the Alto laser ion source, which is an essential instrument at any low-energy facility for the production of purified isotopic beams.

Recent developments in production of radioactive ion beams with the selective laser ion source at the on-line isotope separator ISOLDE

2004 ◽  
Vol 75 (5) ◽  
pp. 1614-1616 ◽  
Author(s):  
R. Catherall ◽  
V. N. Fedosseev ◽  
U. Köster ◽  
J. Lettry ◽  
G. Suberlucq ◽  
...  
Keyword(s):  
Ion Beams ◽  
Ion Source ◽  
Radioactive Ion Beams ◽  
Laser Ion Source ◽  
Isotope Separator ◽  
Recent Developments ◽  
On Line

Resonant Ionization Laser Ion Source for Radioactive Ion Beams

2009 ◽  
Author(s):  
Y. Liu ◽  
J. R. Beene ◽  
T. Gottwald ◽  
C. C. Havener ◽  
C. Mattolat ◽  
...  
Keyword(s):  
Ion Beams ◽  
Ion Source ◽  
Radioactive Ion Beams ◽  
Laser Ion Source ◽  
Resonant Ionization
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