Cosmogenic isotopes Be-7, Be-10, C-14, Na-22 and Cl-36 in the atmosphere:altitudinal profiles of yield functions

Abstract Production of isotopes by cosmic rays in the Earth’s atmosphere plays a key role in many studies in solar physics, geophysics, archeology and other fields. For those purposes, precise quantitative modeling of their production is crucial, and high-resolution altitudinal profiles of productio...

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Bibliographic Details
Main Authors: Poluianov, S. (Stepan), Kovaltsov, G. (Gennady), Mishev, A. (Alexander), Usoskin, I. (Ilya)
Format: Conference Object
Language:English
Published: Sissa 2017
Subjects:
Online Access:http://urn.fi/urn:nbn:fi-fe2017110150454
Description
Summary:Abstract Production of isotopes by cosmic rays in the Earth’s atmosphere plays a key role in many studies in solar physics, geophysics, archeology and other fields. For those purposes, precise quantitative modeling of their production is crucial, and high-resolution altitudinal profiles of production rates are in high demand. Here we present detailed and consistent yield functions of isotopes ⁷Be, ¹⁰Be, ¹⁴C, ²²Na and ³⁶Cl produced by energetic particles in the atmosphere. Comparison of reconstructions of the ¹⁰Be deposition flux in 1951–2013 and around 775 AD with ice core measurements is shown for illustration of application of our yield functions.