Investigation of the thermal 26Al(n,pi)26Mg and 26Al(n,αi)23Na reactions

✍ Scribed by J. Wagemans; C. Wagemans; G. Goeminne; P. Geltenbort; A. Moens

• Publisher: Elsevier Science
• Year: 2001
• Tongue: English
• Weight: 289 KB
• Volume: 696
• Category: Article
• ISSN: 0375-9474
• DOI: 10.1016/s0375-9474(01)01125-3

✦ Synopsis

A homogeneous deposit of (2.58 ± 0.12) × 10 17 26 Al atoms was produced applying the method of electrodeposition. With this target, the 26 Al(n th , p i ) 26 Mg and the 26 Al(n th , α i ) 23 Na reactions were studied at the high flux reactor of the ILL in Grenoble. Thermal cross section values for five transitions were obtained. The value for the 26 Al(n th , p 0 ) 26 Mg cross section, (8.1 ± 0.8) mb, is a factor 3 lower than reported in the literature. For the 26 Al(n th , p 1 ) 26 Mg cross section, a value of (1942 ± 95) mb was found, which is in reasonable agreement with the literature values. The result obtained for the 26 Al(n th , p 2 ) 26 Mg cross section, (17 ± 4) mb, lies more than a factor 10 below the upper limit reported. A cross section value for the 26 Al(n th , α 0 ) 23 Na reaction of (261 ± 13) mb was found, which is more than a factor 3 lower than reported in the literature. The 26 Al(n th , α 1 ) 23 Na reaction finally was observed for the first time resulting in an accurate cross section value of (74 ± 4) mb.