NDLI: The COMBAS fragment separator

Content Provider	Springer Nature Link
Author	Artukh, A. G. Sereda, Yu. M. Klygin, S. A. Konenko, G. A. Teterev, Yu. G. Vorontzov, A. N. Kaminski, G. Erdemchimeg, B. Ostashko, V. V. Pavlenko, Yu. N. Litovchenko, P. G. Kovtun, V. E. Koshchiy, E. I. Foshchan, A. G. Kislukha, D. A.
Copyright Year	2011
Abstract	The basic ion-optical characteristics of the COMBAS fragment separator are analyzed. The momentum distributions of radioactive $^{6}$He, $^{8}$He, and $^{9}$Li nuclei obtained in the reaction $^{11}$B (33 A MeV, where A is the mass number of a particle) + $^{9}$Be (332.6 mg/cm$^{2}$) have been investigated in forward-angle measurements on the COMBAS fragment separator. The momentum and angular (horizontal) acceptances of the COMBAS separator have been measured using the $^{6}$He, $^{8}$He, and $^{9}$Li beams. It has been ascertained that the images of the $^{6}$He, $^{8}$He, and $^{9}$Li nuclear beams in final achromatic focus of the separator F $_{ a }$ approximately twofold exceed the size of the beam on a producing target (input focus F $_{0}$), at which the primary beam has a diameter of 6 mm. The intensities of $^{6}$He, $^{8}$He, and $^{9}$Li beams obtained at a 5-μA intensity of the primary $^{11}$B beam are 6.9 × 10$^{5}$, 2 × 10$^{4}$, and 4.7 × 10$^{5}$ particles/s, respectively. These values are sufficient for use in spectroscopic measurements. It is proposed that time-of-flight analysis of nuclear reaction products at the exit from the COMBAS separator will be used not only to measure the energy of transported particles over the whole operating range of the momentum acceptance, but also to identify them by mass A and charge Z without loss of these particles. The problem of reducing the count rates of detectors and further improvement of their energy resolution for detected particles can be solved by placing a high-resolution magnetic spectrometer past the second target accepting the secondary radioactive nuclear beams.
Starting Page	668
Ending Page	681
Page Count	14
File Format	PDF
ISSN	00204412
Journal	Instruments and Experimental Techniques
Volume Number	54
Issue Number	5
e-ISSN	16083180
Language	English
Publisher	SP MAIK Nauka/Interperiodica
Publisher Date	2011-10-01
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Electrical Engineering Measurement Science and Instrumentation Physical Chemistry
Content Type	Text
Resource Type	Article
Subject	Instrumentation

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Detection system of the COMBAS fragment separator

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Upgrade of the beam profile ionization monitor for the KOMBAS fragment separator

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Upgrade of the beam profile ionization monitor for the KOMBAS fragment separator

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