Research of heat history analysis of industrial metal product using positron gamma spectroscopy

• Project/Area Number: 20560050
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Applied physics, general
• Research Institution: National Research Institute of Police Science
• Principal Investigator: KUROKI Kenro 科学警察研究所, 法科学第二部, 部付主任研究官 (60392271)
• Co-Investigator(Kenkyū-buntansha): AKIBA Norimitu 科学警察研究所, 法科学第二部物理研究室, 主任研究官 (00370883)
• Project Period (FY): 2008 – 2010
• Project Status: Completed (Fiscal Year 2010)
• Budget Amount: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000); Fiscal Year 2010: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2009: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2008: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
• Keywords: 陽電子 / 消滅ガンマ線 / 金属材料 / 熱履歴

Research Abstract

The heat history analysis of a metallic material and the production process analysis of the thin metallic film were examined by the positron annihilation gamma rays simultaneous energy measurement method. When the influence of the oxide film was able to be excluded, the heat-treatment history of the metal was able to be detected. The possibility of the measurement of the film thickness was shown and the possibility of the distinction of the production process between vapor-deposited film and the plating film was also shown for the of the thin metallic film.

Research Products

• [Presentation] 陽電子分光による材質分析 (2010)
  • Author(s): 黒木健郎
  • Organizer: 日本法科学技術学会第16回学術集会
  • Place of Presentation: 東京、フロラシオン青山
  • Year and Date: 2010-11-11
• [Presentation] 陽電子分光による材質分析 (2010)
  • Author(s): 黒木健郎、黒沢健至、土屋兼一
  • Organizer: 日本法科学技術学会第16回学術集会
• [Presentation] 陽電子分光法による熱履歴分析-銅板における酸化膜の影響 (2008)
  • Author(s): 黒木健郎
  • Organizer: 日本法科学技術学会第14回学術集会
  • Place of Presentation: 東京
  • Year and Date: 2008-11-07
• [Presentation] 陽電子分光法による熱履歴分析-銅板における酸化膜の影響 (2008)
  • Author(s): 黒木健郎、土屋兼一、秋葉教充
  • Organizer: 日本法科学技術学会第14回学術集会