These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: First results from the new RIKEN superconducting electron cyclotron resonance ion source (invited).
    Author: Nakagawa T, Higurashi Y, Ohnishi J, Aihara T, Tamura M, Uchiyama A, Okuno H, Kusaka K, Kidera M, Ikezawa E, Fujimaki M, Sato Y, Watanabe Y, Komiyama M, Kase M, Goto A, Kamigaito O, Yano Y.
    Journal: Rev Sci Instrum; 2010 Feb; 81(2):02A320. PubMed ID: 20192341.
    Abstract:
    The next generation heavy ion accelerator facility, such as the RIKEN radio isotope (RI) beam factory, requires an intense beam of high charged heavy ions. In the past decade, performance of the electron cyclotron resonance (ECR) ion sources has been dramatically improved with increasing the magnetic field and rf frequency to enhance the density and confinement time of plasma. Furthermore, the effects of the key parameters (magnetic field configuration, gas pressure, etc.) on the ECR plasma have been revealed. Such basic studies give us how to optimize the ion source structure. Based on these studies and modern superconducting (SC) technology, we successfully constructed the new 28 GHz SC-ECRIS, which has a flexible magnetic field configuration to enlarge the ECR zone and to optimize the field gradient at ECR point. Using it, we investigated the effect of ECR zone size, magnetic field configuration, and biased disk on the beam intensity of the highly charged heavy ions with 18 GHz microwaves. In this article, we present the structure of the ion source and first experimental results with 18 GHz microwave in detail.
    [Abstract] [Full Text] [Related] [New Search]