Transmission of cluster ions through a tandem accelerator of several stripper gases

Saitoh, Yuichi; Chiba, Atsuya; Narumi, Kazumasa
October 2009
Review of Scientific Instruments;Oct2009, Vol. 80 Issue 10, p106104
Academic Journal
The transmissions of carbon cluster ion beams through a tandem accelerator using several stripper gases (He, N2, CO2, and SF6) with a terminal voltage of 2.5 MV were measured as a function of the gas pressure in investigating the most suitable gas for cluster ion acceleration. This resulted in it being demonstrated that the highest transmission could be obtained using the smaller size gas, i.e., helium displayed the best performance of the four gases used. In addition, the ratio of transmissions of Cn with helium and nitrogen increased with increases in the n, thus revealing that helium gas should prove the most effective in larger cluster ion acceleration using the same energy.


Related Articles

  • Accel–decel extraction system for PIG sources. Spa¨dtke, P.; Heymach, F.; Hollinger, R.; Leible, K. D.; Mayr, R.; Shi, L. Q. // Review of Scientific Instruments;Feb2002, Vol. 73 Issue 2, p723 

    Increasing the brightness of the ion beam is a typical demand for any accelerator. In order to fill the heavy ion synchrotron (SIS) up to the space charge limit, higher pulse currents are necessary. The UNILAC is operated with a pulse length up to 6 ms and a repetition rate up to 50 s[sup -1]....

  • The production and use of ultralow energy ion beams. Goldberg, R. D.; Armour, D. G.; van den Berg, J. A.; Cook, C. E. A.; Whelan, S.; Zhang, S.; Knorr, N.; Foad, M. A.; Ohno, H. // Review of Scientific Instruments;Feb2000, Vol. 71 Issue 2, p1032 

    Describes an ultralow energy ion-beam accelerator. Applications of ultralow energy ion beams; Ultrashallow junction formation; Roughness of aluminum beam deposited films.

  • The development of an ECRIS charge-state breeder for generating RIB’s. Lamy, T.; Geller, R.; Bouly, J. L.; Chauvin, N.; Curdy, J. C.; Lacoste, A.; Sole, P.; Sortais, P.; Thuillier, T.; Vieux-Rochaz, J. L. // AIP Conference Proceedings;2001, Vol. 576 Issue 1, p281 

    ECRIS have proven their ability to fulfill the requirements of all types of accelerators[sup (1)]. Initially developed for radioactive ion beam production, the ECR charge breeder shows that the beam injection of a primary beam inside an ECR ion source is a very general process for beam...

  • Lasers pumped by ion beams. Ulrich, A.; Hammer, J. W.; Biermayer, W. // Journal of Applied Physics;4/1/1988, Vol. 63 Issue 7, p2206 

    Presents a study which examined rare-gas laser lines in the near infrared and the line in carbon which have been pumped with an intense direct current beam from the Stuttgart Dynamitron accelerator. Use of ion beam accelerators as a versatile pumping source for lasers; Discussion on the gas...

  • Design and operation of a 30-kV accelerator for negative ion beams. Holmes, A. J. T.; Nightingale, M. P. S. // Review of Scientific Instruments;Oct86, Vol. 57 Issue 10, p2402 

    A 30-kV triode accelerator has been constructed to test the design and operating characteristics of accelerators for negative hydrogen ion beams. Incorporating both a quadrupole electron trap and an octupole electron suppressor, the accelerator has been used to extract, accelerate, and focus H-...

  • Rutherford magnetic spectrograph for intense ion beam measurements on PBFA-II. Leeper, R. J.; Stygar, W. A.; Kensek, R. P.; Lee, J. R.; Johnson, D. J.; Lockner, T. R.; Maenchen, J.; Hebron, D. E.; Wenger, D. F. // Review of Scientific Instruments;Aug1988, Vol. 59 Issue 8, p1700 

    A time-resolved magnetic spectrograph employing a gold Rutherford-scattering foil has been constructed to measure the parameters of the intense ion beams generated by Sandia National Laboratories' PBFA-II accelerator. The spectrograph operates by allowing the direct intense beam of PBFA-II to...

  • Design of an electrostatic magnetic quadrupole accelerator. Mizuno, M.; Ohara, Y. // Review of Scientific Instruments;Feb1993, Vol. 64 Issue 2, p477 

    A new type of electrostatic acceleration system, electrostatic magnetic quadrupole (ESMQ) acceleration system, is proposed for efficient acceleration of negative ion beams. In this system, permanent magnets are buried in the acceleration electrodes so as to produce a quadrupole magnetic field in...

  • Ion source of multiply charged C[sub 60] fullerene and fullerene linear accelerator. Hattori, Toshiyuki; Hayashizaki, Noriyosu; Matsui, Shinjirou; Tomizawa, Hiromitsu; Yoshida, Toru; Gates, Stephen John; Sasa, Kimikazu; Majima, Satoshi; Isokawa, Katsushi; Ito, Takashi; Okamura, Masahiro; Yamada, Satoru // Review of Scientific Instruments;Feb2000, Vol. 71 Issue 2, p1049 

    Describes a technique for producing fullerene beam. Ion source of multiply charge fullerene; Analysis of multiply charge fullerene ions; Design of fullerene accelerator.

  • Emission of silicon cluster ions by molecular ion bombardment. Yamamoto, Hiroyuki; Baba, Yuji // Applied Physics Letters;5/11/1998, Vol. 72 Issue 19 

    Silicon cluster ions (Si[sub n][SUP ARRANGE="STAGGER"]+]) with n≤8 emitted from a Si(100) surface under bombardment with 4 keV SF[sub 5][SUP ARRANGE="STAGGER"]+], SF[sup +], F[sup +], and Xe[sup +] ions have been observed. It was shown that, in all cases, the relative cluster yields (Y)...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics