Electron beam-plasma ionizing target for the production of neutron-rich nuclides

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS

卷:266

Article; Proceedings Paper

Panteleev, V. N.¹  Barzakh, A. E.¹  Essabaa, S.²  Fedorov, D. V.¹  Ionan, A. M.¹  Ivanov, V. S.¹  Lau, C.²  Leroy, R.³  Lhersonneau, G.³  Mezilev, K. A.¹  Molkanov, P. L.¹  Moroz, F. V.¹  Orlov, S. Yu.¹  Stroe, L.⁴  Tecchio, L. B.⁴  Villaric, A. C. C.³  Volkov, Yu. M.¹ 

[1] RAS, Petersburg Nucl Phys Inst, Gatchina 188300, Russia

[2] Inst Phys Nucl, F-91406 Orsay, France

[3] GANIL, F-14076 Caen 5, France

[4] Lab Natl Legnaro, I-35020 Padua, Italy

关键词: Uranium carbide target;    Ionising target;    Ionization efficiency;    Yield;   

DOI  :  10.1016/j.nimb.2008.05.050

来源: Elsevier

【 摘 要 】

The production of neutron-rich Ag, In and Sri isotopes from a uranium carbide target of a high density has been investigated at the IRIS facility in the PLOG (PNPI-Legnaro-GANIL-Orsay) collaboration. The UC target material with a density of 12 g/cm(3) was prepared by the method of powder metallurgy in a form of pellets of 2 mm thickness, 11 mm in diameter and grain dimensions of about 20 mu m. The uranium target mass of 31 was exposed at a 1 GeV proton beam of intensity 0.05-0.07 mu A. For the ionization of the produced species the electron beam-plasma ionization inside the target container (ionizing target) has been used. It was the first experiment when the new high density UC target material was exploited with the electron-plasma ionization. Yields of Sn isotopes have been measured in the target temperature range of (1900-2100) degrees C. The yields of some Pd, In and Cd isotopes were measured as well to compare to previously measured ones from a high density uranium carbide target having a ceramic-like structure. For the first time a nickel isotope was obtained from a high density UC target. (C) 2008 Elsevier B.V. All rights reserved.

【 授权许可】

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