A new operational mode for an ion cyclotron mobility spectrometry instrument is explored as a possible means of performing high-resolution separations. The approach is based on oscillating fields that are applied to segmented regions of a circular drift tube. Ions with mobilities that are resonant with the frequency of field application are transmitted while nonresonant species are eliminated. ...

Combined parallel static and alternating magnetic fields cause a rapid change in the ionic current flowing through an aqueous glutamic acid solution when the alternating field frequency is equal to the cyclotron frequency. The current peak is 20-30% of the background direct current. The peak is observed with slow sweep in the alternating magnetic field frequency from 1 Hz-10 Hz. Only one resona...

There are in the literature several theories to explain the mass loss in stellar winds. In particular, for late-type stars, some authors have proposed a wind model driven by an outwarddirected flux of damped Alfvén waves. The winds of these stars present great amounts of dust particles which, if charged, can give rise to new wave modes or modify the pre-existing ones. In this work, we study how...

We report on an observation of the low-mass X–ray binary 4U1626–67 performed during the BeppoSAX Science Verification Phase. An absorption feature at ∼ 37 keV, attributable to electron cyclotron resonance, has been discovered in its pulse averaged spectrum. The inferred neutron star magnetic field strength is 3.2 · (1 + z) × 10 12 G, where z is the gravitational redshift. The feature is deep an...

The measurement and comparison of the magnetic moment (or g-factor) of the proton and antiproton provide a stringent experimental test of the CPT-theorem in the baryonic sector [1]. We set up an experiment for the first selfcontained and direct high-precision measurement of the gfactor of a single isolated proton stored in a Penning trap [2]. In previous experiments the g-factor was determined ...

S. Kreim†1, K. Blaum1,2, H. Kracke1, W. Quint2, S. Ulmer1,3, and J. Walz1 1Institut für Physik, Universität Mainz, 55099 Mainz; 2GSI, 64291 Darmstadt, Germany; 3Ruprecht-Karls-Universität, 69047 Heidelberg Determining the g-factor of a single, isolated (anti)proton in a double Penning trap results from an accurate measurement of its cyclotron and spin precession frequency. The Larmor frequency ...

Measurements of a magnetized plasma with a controlled electron temperature gradient show the development of a broadband spectrum of density and temperature fluctuations having an exponential frequency dependence at frequencies below the ion cyclotron frequency. The origin of the exponential frequency behavior is traced to temporal pulses of Lorentzian shape. Similar exponential frequency spectr...