SECRAL在18GHz频率下产生强流高电荷态离子束的初步结果
SECRAL재18GHz빈솔하산생강류고전하태리자속적초보결과
First Results of SECRAL at 18GHz for Intense Beam Production of Highly Charged Ions
  • 万方数据
    高能物理与核物理 고능물리여핵물리
    HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS
    2007年 z1期 8-12 ,共5页

    赵红卫%孙良亭%郭晓虹%张雪珍%张子民%袁平%D.Z.Xie%李锦钰%冯玉成%何伟%宋明涛%李锡霞%曹云%王辉%马宝华%卢旺%詹文龙%魏宝文

    조홍위%손량정%곽효홍%장설진%장자민%원평%D.Z.Xie%리금옥%풍옥성%하위%송명도%리석하%조운%왕휘%마보화%로왕%첨문룡%위보문



    SECRAL ECR ion source%superconducting magnet%highly charged ion beams


    A Superconducting ECR ion source with Advanced design in Lanzhou(SECRAL)was successfully built to produce intense beams of highly charged ions for Heavy Ion Research Facility in Lanzhou(HIRFL).The ion source has been optimized to be operated at 28GHz for its maximum performance.The superconducting magnet confinement configuration of the ion source consists of three axial solenoid coils and six sextupole coils with a cold iron structure as field booster and clamping.For 28GHz operation,the magnet assembly can produce peak mirror fields on axis 3.6T at injection.2.2T at extraction and a radial sextupole field of 2.0T at plasma chamber wall.A unique feature of SECRAL is that the three axial solenoid coils are located inside of the sextupole bore in order to reduce the interaction forces between the sextupole coils and the solenoid coils.During the ongoing commissioning phase at 18GHz with a stainless steel chamber,tests with various gases and some metals have been conducted with microwave power less than 3.2kW and it turned out the performance is very promising.Some record ion beam intensities have been produced,for instance,810eμof O7+,505eμA of Xe 20+,306eμA of Xe27+,21eμA of Xe34+,2.4eμA of Xe38+ and so on.To reach better results for highly charged ion beams,further modifications such as an aluminium chamber with better cooling,higher microwave power and a movable extraction system will be done,and also emittance measurements are being prepared.
    원문보기 원문다운로드 사이트로이동
저자의 최근 논문