Production mechanism of radioactive aerosols in high radiation area

2016 Fiscal Year Final Research Report

• Project/Area Number: 25790081
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Quantum beam science
• Research Institution: Kyoto University
• Principal Investigator: Sekimoto Shun 京都大学, 原子炉実験所, 助教 (10420407)
• Research Collaborator: OKUMURA Shintaro ; OHTSUKI Tsutomu ; YASHIMA Hiroshi
• Project Period (FY): 2013-04-01 – 2017-03-31
• Keywords: 軽核 / Be-10 / Al-26 / 加速器質量分析

Outline of Final Research Achievements

The production cross sections of Be-10 and Al-26 produced from various target materials (Co, Ni, Cu, Y, Au) irradiated with 120 GeV protons and those of Be-10 from Cu, Y and Tb targets irradiated with 400 MeV protons were measured by accelerator mass spectrometry. Those of Be-10 and Al-26 obtained in this work are compared to the literature data, which are production cross sections of corresponding light nuclides produced from various target elements irradiated with 50 MeV-12 GeV protons. From the comparison, induced energy- and target mass number-dependence of production cross section of light nuclides were discussed and then, it was suggested that dependence of production cross sections of light nuclides on the target mass number is affected by the binding energy. The difference in the absolute values between production cross sections of Be-10 and Al-26 may depend on the ompact parameter and the target nucleus stiffness.

Free Research Field

放射化学