- P-ISSN 2233-4203
- E-ISSN 2093-8950
In this article, we examine the influences of Ne and He buffer gases under confined Ar + ion cloud in a homemade Paul ion trap in various pressures and confinement times. The trap is of small size (r 0 = 1 cm) operating in a radio frequency (rf) voltage only mode, and has limited accuracy of 13 V. The electron impact and ionization process take place inside the trap and a Faraday cup has been used for the detection. Although the experimental results show that the Ar + ion FWHM with Ne buffer gas is wider than the He buffer gas at the same pressure (1×10 -1 mbar) and confinement time is about 1000 µs, nevertheless, a faster cooling was found with He buffer gas with 500 µs. ultimetly, the obtanied results performed an average cloud tempertures reduced from 1777 K to 448.3 K for Ne (1000 µs) and from 1787.9 K to 469.4 K for He (500 µs)
George Stafford, Jr.. (2002). . J. Am. Soc. Mass Spectrom, 13, 589-.
Wei, X.. (2009). . J. Am. Soc. Mass Spectrom, 20, 2144-.
Sadat Kiai, S. M.. (1991). . Int. J. Mass Spectrom. Ion Process, 107, 191-.
Enders, K.. (1997). . Phys. Rev. A, 56, 265-.
Lee, Y. Y.. (2001). . J. Korean Phys. Soc, 39, 902-.
Sadat Kiai, S. M.. (2011). . J. Anal. At. Spectrom, 26, 2247-.
Wu, H. F.. (1992). . Int. J. Mass Spectrom. Ion Process, 115, 67-.
Leuthner, H.. (2014). . Appl. Phys. B, 114, 89-.
Bajpai, M.. (2009). . Phys. Status Solidi, 6, 2456-.
Blaum, K. (2008). Trapped Charged Particles and Fundamental Interactions:Springer.
McLachlan, N. W.. (1951). Theory and application of Mathieu functions:Oxford Press.