Quantitative detection of low energy positive and negative ions with a channel electron multiplier

Keller, C.A.; Cooer, B.H.
August 1996
Review of Scientific Instruments;Aug1996, Vol. 67 Issue 8, p2760
Academic Journal
Describes the design and operation of a detection system for low energy positive and negative ions with a channel electron multiplier. Discussion of the ion optics developed to remove these asymmetries, the shielding to eliminate the detection of stray electrons and the calibration of the system for the detection of both positive and negative ions.


Related Articles

  • Super-Kamiokande Limps Back to Life. MacRobert, Alan // Sky & Telescope;Feb2003, Vol. 105 Issue 2, p28 

    Reports on the destruction of a Super-Kamiokande underground detector in Japan. Explosion of the photomultiplier tubes; Use of protective casing to prevent a repeat of the accident.

  • In situ absolute calibration of a channel electro multiplier for detection of positive ions. Savin, D.W.; Gardner, L.D.; Reisenfeld, D.B.; Young, A.R.; Kohl, J.L. // Review of Scientific Instruments;Jan1995, Vol. 66 Issue 1, p67 

    Develops a technique to determine the absolute single particle counting efficiency of a channel electron multiplier (CEM) for positively charged ions at keV energies. Calibration technique applicable to positive ion detectors in general; Creation of ion beam currents by charge transfer;...

  • A flexible luminescent probe to monitor fast ion losses at the edge of the TJ-II stellarator. Jiménez-Rey, D.; Zurro, B.; Guasp, J.; Liniers, M.; Baciero, A.; García-Muñoz, M.; Fernández, A.; García, G.; Rodríguez-Barquero, L.; Fontdecaba, J. M. // Review of Scientific Instruments;Sep2008, Vol. 79 Issue 9, p093511 

    A mobile luminescent probe has been developed to detect fast ion losses and suprathermal ions escaping from the plasma of the TJ-II stellarator device. The priorities for its design have been flexibility for probe positioning, ease of maintenance, and detector sensitivity. It employs a coherent...

  • Luminescence of In... in Ce... and Tb...-doped elpasolite-type fluoroindates. Bunuel, M. A.; Moine, B. // Journal of Applied Physics;11/1/1999, Vol. 86 Issue 9, p5045 

    Presents information on a study which deals with the optical properties of indium ions in crystalline octahedral symmetry. Theoretical background of the study; Experimental details; Results and discussion; Conclusions.

  • Fluorescence properties of Sm2+ ions in silicate glasses. Nogami, Masayuki; Abe, Yoshihiro // Journal of Applied Physics;7/1/1996, Vol. 80 Issue 1, p409 

    Studies the fluorescence properties of Sm2+ ions incorporated in silicate glasses using steady-state and laser-induced line narrowing techniques. Description of the sample preparation process; Heating of the glass and fluorescence spectra of the ions; Crystallization of glass.

  • Photomultiplier characteristics and practice relevant to photon counting. Candy, B. H. // Review of Scientific Instruments;Feb1985, Vol. 56 Issue 2, p183 

    Certain nonideal photomultiplier characteristics are particularly relevant to the practice of photon counting. The literature on some of these characteristics can be rather confusing in the description of the mechanisms involved, such as those associated with single electron response distortion,...

  • Removal of phototubes from Pb–glass detectors. Alburger, D. E. // Review of Scientific Instruments;Jan1980, Vol. 58 Issue 1, p143 

    A simple procedure is described for removing faulty photomultiplier tubes from Pb–glass detectors by means of heated chloroform.

  • Electronics for microchannel photomultipliers in the LIDAR Thomson scattering diagnostic on JET. Bundgaard, J.; Hansen, K. B.; Weisberg, K.-V. // Review of Scientific Instruments;Oct89, Vol. 60 Issue 10, p3265 

    The electronics for the microchannel plate photomultiplier tubes used in the LIDAR (Light Detection and Ranging) Thomson scattering diagnostic on the JET tokamak are described. It is shown how the microchannel plate photomultiplier tubes are gated with a very small coupling between gate signal...

  • Evaluation of a squirrel-cage photomultiplier base for time-resolved spectroscopy with low-repetition rate pulses. Naqvi, K. Razi; Haggquist, G. W.; Burkhart, R. D.; Sharma, D. K. // Review of Scientific Instruments;Dec1992, Vol. 63 Issue 12, p5806 

    A wiring diagram is presented which permits using a squirrel-cage photomultiplier tube as a versatile, low duty-cycle detector in a kinetic spectrometer. The performance of the circuit is illustrated and some crucial tests are described.


Read the Article


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

Try another library?
Sign out of this library

Other Topics