American Journal of Physics and Applications

Volume 8, Issue 3, May 2020

  • Temporal and Spatial Variations of Cosmogenic Radionuclide Production Rates in Chondrites During Their Passage Through the Inner Heliosphere

    Galina Ustinova, Victor Alexeev

    Issue: Volume 8, Issue 3, May 2020
    Pages: 29-39
    Received: 20 April 2020
    Accepted: 6 May 2020
    Published: 9 June 2020
    Abstract: To study radiation environment in the interplanetary space, cosmogenic radionuclides in meteorites, the production rates of which are in direct proportionality to the intensity of cosmic rays, are used. The contents of cosmogenic radionuclides of different half-lives T1/2, measured in 42 stony meteorites (chondrites) having sequentially fallen onto... Show More
  • Tunneling Through a One-Dimensional Square Potential Barrier Under Fluctuations in an Observer’s Frame of Reference

    Yun-Sok Shin

    Issue: Volume 8, Issue 3, May 2020
    Pages: 40-45
    Received: 11 May 2020
    Accepted: 2 June 2020
    Published: 15 June 2020
    Abstract: This study reports tunneling through a one-dimensional (1D) square potential barrier (SPB) under fluctuations in an observer’s frame of reference (OFR). To date, tunneling through an SPB has been studied under the assumption that the OFR remains constant throughout the tunneling measurements; therefore, the change of the tunneling probability when ... Show More