Possibility of Determining the Energy of the Cosmicβ-Particles by Magnetic Deflection

1930 ◽  
Vol 35 (9) ◽  
pp. 1125-1126 ◽  
Author(s):  
L. M. Mott-Smith
Keyword(s):  
Magnetic Deflection

On the Magnetic Deflection of Cosmic Rays

1930 ◽  
Vol 36 (3) ◽  
pp. 606-606 ◽  
Author(s):  
Bruno Rossi
Keyword(s):  
Cosmic Rays ◽  
Magnetic Deflection

scholarly journals Erratum: Dynamic Focusing in Magnetic Deflection

1967 ◽  
Vol 38 (4) ◽  
pp. 1998-1998
Author(s):  
C. T. Wang
Keyword(s):  
Magnetic Deflection

scholarly journals Electron precipitation characteristics during isolated, compound and multi-night substorm events

2020 ◽  
Author(s):  
Noora Partamies ◽  
Fasil Tesema ◽  
Emma Bland ◽  
Erkka Heino ◽  
Hilde Nesse Tyssøy ◽  
...  
Keyword(s):  
Local Maximum ◽  
Recovery Phase ◽  
High Energy ◽  
Atmospheric Effects ◽  
Average Intensity ◽  
Cosmic Radio ◽  
Substorm Activity ◽  
Magnetic Deflection ◽  
Ground Magnetic ◽  
Isolated Compound

Abstract. A set of 24 isolated, 46 compound and 36 multi-night substorm events from the years 2008–2013 have been analysed in this study. Isolated substorm events are defined as single expansion-recovery phase pairs, compound substorms consist of multiple phase pairs, and multi-night substorm events refer to recurring substorm activity on consecutive nights. Approximately 200 nights of substorm activity observed over the Fennoscandian Lapland have been analysed for their magnetic disturbance magnitude and the level of cosmic radio noise absorption. Substorm events were automatically detected from the local electrojet index data and visually categorised. We show that isolated substorms have limited lifetimes and spatial extents, as compared to the other substorm types. The average intensity (both in absorption and ground-magnetic deflection) of compound and multi-night substorm events is similar. For multi-night substorm events, the first night is rarely associated with the strongest absorption. Instead, the high-energy electron population needed to cause the strongest absorption builds up over 1–2 additional nights of substorm activity. The non-linear relationship between the absorption and the magnetic deflection at high and low activity conditions is also discussed. We further collect in-situ particle spectra for expansion and recovery phases to construct median precipitation fluxes at energies from 30 eV up to about 800 keV. In the expansion phases the bulk of the spectra shows a local maximum flux in the range of a few keV to 10 keV, while in the recovery phases higher fluxes are seen in the range of tens of keV to hundreds of keV. These findings are discussed in the light of earlier observations of substorm precipitation and their atmospheric effects.

scholarly journals Leptons from decay of mesons in the laser-induced particle pulse from ultra-dense protium p(0)

2016 ◽  
Vol 25 (10) ◽  
pp. 1650085 ◽  
Author(s):  
Leif Holmlid
Keyword(s):  
Magnetic Field ◽  
Beta Decay ◽  
Direct Observation ◽  
Weak Magnetic Field ◽  
Laser Pulses ◽  
Metal Foils ◽  
Decay Times ◽  
Magnetic Deflection

Kaons and pions are observed by their characteristic decay times of 12, 52 and 26 ns after impact of relatively weak ns-long laser pulses on ultra-dense hydrogen H(0), as reported previously. The signal using an ultra-dense protium p(0) generator with natural hydrogen is now studied. Deflection in a weak magnetic field or penetration through metal foils cannot distinguish between the types of decaying mesons. The signals observed are thus not caused by the decaying mesons themselves, but by the fast particles often at [Formula: see text][Formula: see text]MeV u[Formula: see text] formed in their decay. The fast particles are concluded to be mainly muons from their relatively small magnetic deflection and strong penetration. This is further supported by published studies on the direct observation of the beta decay of muons in scintillators and solid converters using the same type of p(0) generator.

Magnetic Deflection of β Rays

Nature ◽  
1910 ◽  
Vol 83 (2117) ◽  
pp. 369-369 ◽  
Author(s):  
OTTO VON BAEYER ◽  
OTTO HAHN
Keyword(s):  
Magnetic Deflection
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