Development of a pendulum positron target for the International Linear Collider

2016 Fiscal Year Final Research Report

• Project/Area Number: 26400293
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Particle/Nuclear/Cosmic ray/Astro physics
• Research Institution: Hiroshima University
• Principal Investigator: Takahashi Tohru 広島大学, 先端物質科学研究科, 准教授 (50253050)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 国際リニアコライダー / 陽電子源 / 回転標的

Outline of Final Research Achievements

We conducted a design of an electron driven positron target for the International Linear Collider. We also performed a test of a prototype of the positron generation target.The parameters of the positron source, such as energy and the size of the drive electron beam, thickness of the positron generation target, were optimized by a comprehensive survey of the parameter space. Based on the result of the survey, we designed a positron source, including cooling system and a positron capture device. The prototype of the target has been tested, particularly for durability the vacuum seal with a ferromagnetic fluid.
We also performed a numerical simulation to estimate the positron yields, with taking realistic performance of accelerator components into account.
Based on these studies, we showed that the electron driven scheme potentially has sufficient performance and reality for the ILC positron source.

Free Research Field

高エネルギー物理学