Coupling of Quadruple Ion Traps with Ion Guides to Study the Nano and Subnano Particles

S. Rastikerdar

Physics Department, Faculty of Science, Dawson College, Westmount, Canada

email: srastikerdar@dawsoncollege.qc.ca

ABSTRACT

Various quadruple ion traps were designed and used in conjunction with a gas cell ion guide system to discover the theoretically predicted very low energy 3.5 eV gamma ray transition in ²²⁹Tm nucleus. ²³³U were used to produce the ²²⁹Tm through its decay. The experimental set up consisted of variety of parts including gas cell, ion guide, linear trap, time of flight line and RFQ trap. The high energy recoil daughters from the alpha decays of ²³³U were cooled down in the gas cell and then were guided through the ion guide section of the apparatus to the ion trap. Although no direct sign of emission of the very low energy 3.5 eV was observed, it was found that such devices could easily be modified and designed in such a way that would be suitable for guiding, trapping and eventually studying the nano and subnano particles initially made in the form of various ions.

Keywords: Ion traps, Quadruples, Radio frequency, Gas cell, Time of flight

S. Rastikerdar: Physics Department, Dawson College, 3040 Sherbrooke West, Westmount, Quebec, Canada, H3Z 1A4

Tel: (514) 718 9988 and (514) 931 8731/ext. 1752