On positron radiation belt in the Earth's magnetosphere

Abstract

® m± ->e±) born in nuclear collisions of trapped relativistic inner zone protons with the residual atmosphere. These positrons and electrons are captured in the magnetosphere and create positron and electron radiation belts of nuclear origin. The positron/electron trapped magnetospheric fluxes formed with this mechanism are simulated and the resulting computed e+/e- flux ratio ~ 4 appears in agreement with the recent observations. This ratio is significantly different from the ratio ~1 obtained from the primary cosmic ray source through the same mechanism.]]>

Ion acoustic solitons, double layers and supersolitons in a collisionless unmagnetized plasma consisting of nonthermal electrons and isothermal positrons

“…The collission of primary cosmic rays with the neutral atoms of the uppermost atmosphere results in an amount of positrons (Gusev et al 2001;Ackermann et al 2012). Being trapped by the magnetic field of the Earth, these positrons are accumulated in the innermost magnetosphere of the Earth (Gusev et al 2000). Again, along with such positrons significant amount of ions are observed in the magnetosphere and in the lower ionosphere of the Earth (Alfvén 1981).…”

Dust ion acoustic solitary structures in presence of nonthermally distributed electrons and positrons

“…Therefore, the plasma system of these astrophysical sites eventually make four component electron-positron-ion-dust (e-p-i-d) plasma. Also, e-p-i-d plasma may be present in the magnetosphere and in the ionosphere of the Earth as such regions of the atmosphere of the Earth contain highly charged dust grains [1] and positrons [8,9]. Positrons are also found in some well known astrophysical dusty plasma environments such as in the magnetosphere of the Jupiter [10] and the Saturn [11].…”

Energetic particle monitoring in space: three-decades of experience at IEPSAS

“…The plastic scintillator serving for detection of recoil protons was replaced by the liquid one (NE-213) and the anticoincidence guard was constructed from the plastic scintillator. In both experiments the pulse shape discrimination separating the responses from neutrons and gamma rays [28,29] was used. IK-17 satellite was launched in Russia in September 1977 on the circular orbit ~500 km with the inclination ~83 o .…”