Energy dissipation and heat load suppression of intense heavy ion beams in gas stripper

Research Project

Project/Area Number	26790074
Research Category	Grant-in-Aid for Young Scientists (B)
Allocation Type	Multi-year Fund
Research Field	Quantum beam science
Research Institution	Institute of Physical and Chemical Research
Principal Investigator	Imao Hiroshi 国立研究開発法人理化学研究所, 仁科加速器研究センター, 専任研究員 (30585542)
Project Period (FY)	2014-04-01 – 2018-03-31
Project Status	Completed (Fiscal Year 2017)
Budget Amount *help	¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000) Fiscal Year 2016: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000) Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000) Fiscal Year 2014: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Keywords	荷電ストリッパー / Heストリッパー / 真空紫外分光 / ガスストリッパー / 重イオン加速器
Outline of Final Research Achievements	Charge strippers are key devices to determine the possible intensities of the ion beams generated in most heavy-ion accelerator projects. The recent realization of the He gas stripper at the RIBF is an important breakthrough for the intensity upgrade of heavy ion beams. The temperature increase and density reduction of the gas stripper due to the energy loss of the powerful ion beams present as a principal bottleneck for increasing the ion intensities further. In the present study, we measured the temperature rise of the He gas due to uranium beams in various beam conditions and compared with the calculations which showed the low heating efficiency. We also developed the spectrometer for the vacuum ultra-violet lights and tried to observe the light emissions from uranium beams to search the new energy path. The novel differential pumping technology was developed in the present study.

Report

(5 results)

2017 Annual Research Report Final Research Report ( PDF )
2016 Research-status Report
2015 Research-status Report
2014 Research-status Report

Research Products
(1 results)

All Patent(Industrial Property Rights) (1 results)

[Patent(Industrial Property Rights)] 差圧室連通装置と差圧室連通方法2017
- Inventor(s)
  今尾　浩士
- Industrial Property Rights Holder
  今尾　浩士
- Industrial Property Rights Type
  特許
- Industrial Property Number
  2017-099927
- Filing Date
  2017
- Related Report
  2017 Annual Research Report