Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Lars-Erik De Geer"'
The 22 September 1979 Vela Incident: Radionuclide and Hydroacoustic Evidence for a Nuclear Explosion
Publikováno v:
Science & Global Security. 26:20-54
This article offers a new analysis of radionuclide and hydroacoustic data to support a low-yield nuclear weapon test as a plausible explanation for the still contentious 22 September 1979 Vela Inci...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::11d1039f1e4a8c1e43fa10851c0f8447
https://doi.org/10.1080/08929882.2018.1451050
https://doi.org/10.1080/08929882.2018.1451050
Publikováno v:
Science & Global Security. 25:95-124
On 22 September 1979 two optical sensors on U.S. satellite Vela 6911 detected a double-flash of light that appeared characteristic of an atmospheric nuclear explosion conducted over the southern Atlantic or Indian Ocean. It became known as the Vela I
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cbcf3badaa58a64e51d2d13c91c57800
https://doi.org/10.1080/08929882.2017.1394047
https://doi.org/10.1080/08929882.2017.1394047
Autor:
Lars-Erik De Geer
Publikováno v:
Journal of Radioanalytical and Nuclear Chemistry. 298:2075-2083
In May 2010 unique aerosol-bound and noble gas (xenon) radionuclide signatures were observed at four East Asian surveillance stations designed to detect evidence of nuclear testing. An article published in early 2012 provided an analysis that suggest
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e88091ebce20680a183eddd67ca4b7a3
https://doi.org/10.1007/s10967-013-2678-5
https://doi.org/10.1007/s10967-013-2678-5
Autor:
Martin Kalinowski, Luis Cella, Clemens Schlosser, Hartmut Sartorius, Andreas Becker, Gilbert Le Petit, Jenny Peterson, Pascal Achim, X. Blanchard, Matthias Zähringer, Lars-Erik De Geer, Vladimir Popov, Yury Popov, Paul R.J. Saey, T. Taffary, Matthias Auer, A. Ringbom, G. Brachet, Anders Axelsson
Publikováno v:
Pure and Applied Geophysics. 167:499-515
Activity concentration data from ambient radioxenon measurements in ground level air, which were carried out in Europe in the framework of the International Noble Gas Experiment (INGE) in support of the development and build-up of a radioxenon monito
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::87e2991365a530053756d44561badc11
https://doi.org/10.1007/s00024-009-0034-z
https://doi.org/10.1007/s00024-009-0034-z
Autor:
Yves Grillon, Roland R. Draxler, Matthew C. Hort, H. Glaab, Gerhard Wotawa, Petra Seibert, Marcus Hirtl, Philippe Heinrich, Lars-Erik De Geer, Vyacheslav Shershakov, Peter Chen, Andreas Becker, Réal D’Amours, Keiichi Katayama, Paul Stewart, Michel Jean, Craig Sloan, Yuetang Zhang
Publikováno v:
Atmospheric Environment. 41:4520-4534
In this paper, we introduce a methodology for quality assessment of backtracking models. We present results illustrating the level of agreement between the backtracking models, and the accuracy of each model and the ensemble model in resolving the ge
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a23fa183e44d3af2055efae333d524c4
https://doi.org/10.1016/j.atmosenv.2006.12.048
https://doi.org/10.1016/j.atmosenv.2006.12.048
Autor:
Lars-Erik De Geer
Publikováno v:
Applied Radiation and Isotopes. 61:151-160
Currie Hypothesis testing is applied to gamma-ray spectral data, where an optimum part of the peak is used and the background is considered well known from nearby channels. With this, the risk of making Type I errors is about 100 times lower than com
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2a80bc3422a84a8affe9a378ce48961c
https://doi.org/10.1016/j.apradiso.2004.03.037
https://doi.org/10.1016/j.apradiso.2004.03.037
Autor:
Lars-Erik De Geer
Publikováno v:
Science & Global Security. 2:351-363
It has long been supposed that the Teller‐Ulam invention of February 1951, that made the construction of a full‐scale fusion device feasible could be deduced from a careful analysis of the debris that scatters worldwide after an atmospheric test.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ae7ba9a50612d947e9201d066aedd2d0
https://doi.org/10.1080/08929889108426372
https://doi.org/10.1080/08929889108426372
Autor:
Anne Liv Rudjord, Finn Ugletveit, Kari Sinkko, A. Rantavaara, Lars-Erik De Geer, W. Kolb, Hannele Aaltonen, Björn Bjurman, Asker Aarkrog, I. Vintersved, Sven Poul Nielsen
Publikováno v:
Technical University of Denmark Orbit
In northern Europe, there are many stations in operation for surveillance of airborne particulate radionuclides at low concentration levels. In August 1987, after a leakage from a Soviet underground nuclear weapons test at Novaya Zemlya, at least fiv
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7a793c8a7c2b2599a0ae2a797843f11d
https://doi.org/10.1016/0265-931x(90)90040-3
https://doi.org/10.1016/0265-931x(90)90040-3
Autor:
R.K. Ungar, A. Axelsson, Marc Bean, Gerhard Wotawa, Paul R. J. Saey, Lars-Erik De Geer, Réal D’Amours, A. Ringbom, Jenny Peterson, K. Elmgren, T. J. Stocki
Publikováno v:
Journal of Geophysical Research. 111
[1] As part of the International Noble Gas Experiment (INGE) two stations were deployed in remote regions at high northern latitudes: Longyearbyen, Spitsbergen, Norway (78.2°N), and Yellowknife, Canada (62.5°N). With one exception, both stations ar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e0cf196904d711866c51954d21df1ebe
https://doi.org/10.1029/2005jd007038
https://doi.org/10.1029/2005jd007038
Autor:
Lars-Erik De Geer, Hans Mellander, I. Vintersved, Siv Jakobsson, Rune Arntsing, Bjorn Bjurrnan
Publikováno v:
IEEE Transactions on Nuclear Science. 34:590-594
The accident at the nuclear power plant at Chernobyl resulted in more radioactive fallout over Sweden than over other parts of western Europe. In the effort to establish its impact on Sweden, the National Defence Research Institute and the Swedish Ge
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c13f80b817a6b63174f1afa5f60e1df1
https://doi.org/10.1109/tns.1987.4337413
https://doi.org/10.1109/tns.1987.4337413