A laser ion source for on-line mass separation

Springer Science and Business Media LLC - Tập 74 - Trang 193-204 - 1992
P. Van Duppen1, P. Dendooven1, M. Huyse1, L. Vermeeren1, Z. N. Qamhieh2, R. E. Silverans2, E. Vandeweert2
1Instituut voor Kern- en Stralingsfysica, K.U. Leuven, Leuven, Belgium
2Laboratorium voor Vaste Stof-Fysika en Magnetisme, K.U. Leuven, Leuven, Belgium

Tóm tắt

A laser ion source based on resonance photo ionization in a gas cell is proposed. The gas cell, filled with helium, consists of a target chamber in which the recoil products are stopped and neutralized, and an ionization chamber where the atoms of interest are selectively ionized by the laser light. The extraction of the ions from the ionization chamber through the exit hole and skimmer is similar to the ion-guide system. The conditions to obtain an optimal system are given. The results of a two-step one-laser resonance photo ionization of nickel, and the first results of laser ionization in a helium buffer gas cell are presented.

Tài liệu tham khảo

J. Ärje, J. Äystö, H. Hyvönen, P. Taskinen, V. Koponen, J. Honkanen, A. Hautojärvi and K. Vierinen, Phys. Rev. Lett. 54(1985)99.

H.L. Ravn, Phys. Rep. 54(1979)201.

R. Kirchner, O. Klepper, D. Marx, G.E. Rathke and B. Sherrill, Nucl. Instr. Meth. A247(1986)265.

G.S. Hurst and M.G. Payne,Principles and Applications of Resonance Ionization Spectroscopy (I.O.P. Publ. Ltd, 1988).

M. Huyse, P. Decrock, P. Dendooven, J. Gentens, G. Vancraeynest, P. Vandenberghe and P. Van Duppen,Proc. EMIS XII Conf., Sendai, 2–6 Sept. 1991, Nucl. Instr. Meth., to be published.

U. Krönert, St. Becker, Th. Hilberath, H.-J. Kluge and C. Schulz, Appl. Phys. A 44(1987)339.

J.K.P. Lee, J.E. Crawford, V. Raut, G. Savard, G. Thekkadath, T.H. Duong and J. Pinard, Nucl. Instr. Meth. B26(1987)444.

W.M. Fairbank and H.K. Carter, Nucl. Instr. Meth. B26(1987)357.

F. Ames, T. Brumm, K. Jager, B.M. Suri, H. Rimke, N. Trautmann and R. Kirchner, Appl. Phys. B51(1990)200.

G.D. Alkhazov, L.Kh. Batist, A.A. Bykov, V.D. Vitman, V.S. Letokhov, V.I. Mishin, V.N. Panteleyev, S.K. Sekatsky and V.N. Fedosyev, Nucl. Instr. Meth. A306 (1991)400.

K. Deneffe, B. Brijs, E. Coenen, J. Gentens, M. Huyse, P. Van Duppen and D. Wouters, Nucl. Instr. Meth. B26(1987)399.

P. Taskinen, H. Pentillä, J. Äystö, P. Dendooven, P. Hauho, A. Jokinen and M. Yoshii, Nucl. Inst. Meth. A281(1989)539.

M.A. Biondi and S.C. Brown, Phys. Rev. 75(1949)1700.

R.V. Ambartsumyan, A.M. Apatin, V.S. Letokhov, A.A. Makarov, V.I. Mishin, A.A. Puretskii and N.P. Furzikov, Sov. Phys. JETP 43(1976)866.

Z.N. Qamhieh, R.E. Silverans, E. Vandeweert, P. Van Duppen, M. Huyse and L. Vermeeren,Proc. EMIS XII Conf., Sendai, 2–6 Sept. 1991, Nucl. Instr. Meth., to be published.

P. Dendooven, Doctoraatsthesis, K.U. Leuven (1992), unpublished.