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When did the average cosmic ray flux increase?
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Nishiizumi, K. Marti, K. Murty, S. V. S. Arnold, J. R. |
| Copyright Year | 1985 |
| Description | A new 129 to 129 Xe method to obtain cosmic ray exposure ages and to study the average cosmic ray flux on a 10 to the 7th power to 10 to the 8th power year time-scale was developed. The method is based on secondary neutron reactions on Te in troilite and the subsequent decay of 129I, the reaction product to stable 129 Xe. The first measurements of 129 I and 129 Xe in aliquot samples of a Cape York troilite sample are reported. |
| File Size | 163104 |
| Page Count | 3 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19850026784 |
| Archival Resource Key | ark:/13960/t9n34qx0h |
| Language | English |
| Publisher Date | 1985-08-01 |
| Access Restriction | Open |
| Subject Keyword | Space Radiation Iodine Isotopes Time Series Analysis Solar Activity Effects Xenon 129 Radiant Flux Density Troilite Xenon Isotopes Periodic Variations Solar Cycles Tellurium Cosmic Rays Neutron Flux Density Flux Rate Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
