Zobrazeno 1 - 10
of 10
pro vyhledávání: '"R. B. Mendell"'
Publikováno v:
Journal of Geophysical Research. 80:1189-1201
In a study of galactic cosmic ray intensity variations it had been found that there are two distinct classes of transient intensity decrease, which have been called type I and type II. Type I events are flare-associated Forbush decreases. Type II eve
Autor:
Serge A. Korff, R. B. Mendell
Publikováno v:
Review of Scientific Instruments. 34:1356-1360
A detector that measures neutrons between 1 and 10 MeV in a mixed background of charged and neutral radiation was developed for use in cosmic‐ray studies. The detector consists of liquid scintillator NE213 surrounded by a thin shield of plastic pho
Publikováno v:
Journal of Geophysical Research. 71:5109-5116
Fast neutron latitude variations in atmosphere during solar minimum measured by high-altitude balloons, noting neutron leakage into space
Publikováno v:
Canadian Journal of Physics. 46:S1023-S1026
We have extended in time our series of balloon flights, made at several latitudes between Hyderabad, India, and Ft. Churchill, Manitoba, to altitudes close to the top of the atmosphere. In these flights the neutrons generated by the cosmic radiation
Autor:
Serge A. Korff, R. B. Mendell
Publikováno v:
Journal of Geophysical Research. 68:5487-5495
Neutron flux between one and ten mev from sea level to balloon altitudes, recorded by fast neutron detector insensitive to other radiation
Publikováno v:
Journal of Geophysical Research. 78:2727-2740
The time dependent worldwide distribution of atmospheric fast neutrons has been determined in balloon and aircraft measurements from 1964 to 1971. The 1- to 10-Mev neutron spectrum was measured with a phoswich detector employing seven channels of pul
Publikováno v:
Journal of Geophysical Research. 78:2741-2762
We have calculated the global distribution of atmospheric neutrons and their products by a Monte Carlo simulation of nucleon transport in the internuclear cascade followed by neutron transport below 19 Mev. First, we present the results generated by
Publikováno v:
Journal of Geophysical Research. 78:2763-2778
During solar particle events from 1968 to 1971 we observed increases in the fast neutron flux at high latitude and at 55- to 75-g/cm² atmospheric depth. The increases correlated with the variations in the solar proton fluxes; the neutron yield per i
Autor:
R. B. Mendell, S. A. Korff
Publikováno v:
Review of Scientific Instruments. 30:442-444
Factors affecting the flatness of plateaus of BF3 neutron counters of large radius and at high pressure were investigated. Counters prepared using special purification techniques showed improved characteristics. Counters of cathode radius from 1.91 t
Autor:
R. B. Mendell, Serge A. Korff
Publikováno v:
Solar Physics. 21:482-482
Astronomical photography of solar eclipse of 7 March 1970 from two locations indicating negative evidence of bulk particle movements above 20 km/sec related to cosmic rays