How to select the best condition for operating a positive ion source of molecular beam surface ionization typea)

1994 ◽  
Vol 65 (5) ◽  
pp. 1766-1769 ◽  
Author(s):  
Hiroyuki Kawano ◽  
Katsushi Ohgami ◽  
Kiyohiko Funato ◽  
Junji Nakamura
1994 ◽  
Vol 65 (4) ◽  
pp. 1398-1398
Author(s):  
Hiroyuki Kawano ◽  
Katsushi Ohgami ◽  
Kiyohiko Funato ◽  
Junji Nakamura

1977 ◽  
Vol 67 (1) ◽  
pp. 61-76 ◽  
Author(s):  
Leif Holmlid ◽  
Jim.O Olsson

1976 ◽  
Vol 55 (2) ◽  
pp. 523-544 ◽  
Author(s):  
Leif Holmlid ◽  
Jim O Olsson

1996 ◽  
Vol 67 (3) ◽  
pp. 1193-1195 ◽  
Author(s):  
Hiroyuki Kawano ◽  
Seiji Matsui ◽  
Naoshi Serizawa

Author(s):  
J. Cesario ◽  
Y. Boulin ◽  
B. Landeau

1981 ◽  
Vol 52 (6) ◽  
pp. 789-796 ◽  
Author(s):  
G. Comsa ◽  
R. David ◽  
B. J. Schumacher

2001 ◽  
Vol 89 (11-12) ◽  
Author(s):  
U. Köster

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.


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