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1

Persistent 22-year cycle in sunspot activity: Evidence for a relic solar magnetic field

K. Mursula, I.G. Usoskin, G.A. Kovaltsov

Journal:

Year:

2001

Language:

english

File:

PDF, 59 KB

english, 2001

2

Cosmic ray induced ionization in the atmosphere: Full modeling and practical applications

Usoskin, Ilya G., Kovaltsov, Gennady A.

Journal:

Journal of Geophysical Research

Year:

2006

Language:

english

File:

PDF, 371 KB

english, 2006

3

Cosmic ray induced ionization model CRAC:CRII: An extension to the upper atmosphere

Usoskin, Ilya G., Kovaltsov, Gennady A., Mironova, Irina A.

Journal:

Journal of Geophysical Research

Year:

2010

Language:

english

File:

PDF, 136 KB

english, 2010

4

A New Calibrated Sunspot Group Series Since 1749: Statistics of Active Day Fractions

Usoskin, I. G., Kovaltsov, G. A., Lockwood, M., Mursula, K., Owens, M., Solanki, S. K.

Journal:

Year:

2016

Language:

english

File:

PDF, 1.48 MB

english, 2016

5

Production of cosmogenic isotopes 7 Be, 10 Be, 14 C, 22 Na, and 36 Cl in the atmosphere: Altitudinal profiles of yield functions

Poluianov, S. V., Kovaltsov, G. A., Mishev, A. L., Usoskin, I. G.

Journal:

Journal of Geophysical Research Atmospheres

Year:

2016

Language:

english

File:

PDF, 1.18 MB

english, 2016

6

Grand minima and maxima of solar activity: new observational constraints

Usoskin, I. G., Solanki, S. K., Kovaltsov, G. A.

Journal:

Astronomy and Astrophysics

Year:

2007

Language:

english

File:

PDF, 374 KB

english, 2007

7

Calculation of atmospheric ionization induced by electrons with non-vertical precipitation: Updated model CRAC-EPII

Artamonov, Anton, Mironova, Irina, Kovaltsov, Gennady, Mishev, Alexander, Plotnikov, Evgenii, Konstantinova, Natalia

Journal:

Advances in Space Research

Year:

2017

Language:

english

File:

PDF, 476 KB

english, 2017

8

Revisited reference solar proton event of 23âFebâ1956: Assessment of the cosmogenicâisotope method sensitivity to extreme solar events

Usoskin, Ilya G., Koldobskiy, Sergey A., Kovaltsov, Gennady A., Rozanov, Eugene V., Sukhodolov, Timophei V., Mishev, Alexander L., Mironova, Irina A.

Journal:

Journal of Geophysical Research Space Physics

Year:

2020

File:

PDF, 1.58 MB

2020

9

A new full 3D model of cosmogenic tritium $^3$H production in the atmosphere (CRAC:3H)

Poluianov, S. V., Kovaltsov, G. A., Usoskin, I. G.

Journal:

Journal of Geophysical Research Atmospheres

Year:

2020

File:

PDF, 1.90 MB

2020

10

NODAL — The second life of the accelerator control language

G. Cuisinier, F. Perriollat, P. Ribeiro, A. Kagarmanov, V. Kovaltsov

Journal:

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

Year:

1994

Language:

english

File:

PDF, 176 KB

english, 1994

11

The impact of interplanetary transport on the charge spectra of heavy ions accelerated in solar energetic particle events

Y.Y. Kartavykh, W. Dröge, G.A. Kovaltsov, V.M. Ostryakov

Journal:

Advances in Space Research

Year:

2006

Language:

english

File:

PDF, 218 KB

english, 2006

12

Case study of Forbush decreases: Energy dependence of the recovery

T. Jämsén, I.G. Usoskin, T. Räihä, J. Sarkamo, G.A. Kovaltsov

Journal:

Advances in Space Research

Year:

2007

Language:

english

File:

PDF, 810 KB

english, 2007

13

Cyclic variations of the heliospheric tilt angle and cosmic ray modulation

K. Alanko-Huotari, I.G. Usoskin, K. Mursula, G.A. Kovaltsov

Journal:

Advances in Space Research

Year:

2007

Language:

english

File:

PDF, 238 KB

english, 2007

14

Cosmic ray-induced ionization in the atmosphere: spatial and temporal changes

I.G. Usoskin, O.G. Gladysheva, G.A. Kovaltsov

Journal:

Journal of Atmospheric and Solar-Terrestrial Physics

Year:

2004

Language:

english

File:

PDF, 541 KB

english, 2004

15

Regional millennial trend in the cosmic ray induced ionization of the troposphere

I.G. Usoskin, I.A. Mironova, M. Korte, G.A. Kovaltsov

Journal:

Journal of Atmospheric and Solar-Terrestrial Physics

Year:

2010

Language:

english

File:

PDF, 316 KB

english, 2010

16

Cosmogenic 7Be in air: A complex mixture of production and transport

A.-P. Leppänen, A.A. Pacini, I.G. Usoskin, A. Aldahan, E. Echer, H. Evangelista, S. Klemola, G.A. Kovaltsov, K. Mursula, G. Possnert

Journal:

Journal of Atmospheric and Solar-Terrestrial Physics

Year:

2010

Language:

english

File:

PDF, 1.04 MB

english, 2010

17

Sensitivity of a neutron monitor to galactic cosmic rays

I.G. Usoskin, P. Bobik, O.G. Gladysheva, H. Kananen, G.A. Kovaltsov, K. Kudela

Journal:

Advances in Space Research

Year:

2001

Language:

english

File:

PDF, 455 KB

english, 2001

18

Dependence of cosmic rays on solar activity for odd and even solar cycles

I.G. Usoskin, K. Mursula, H. Kananen, G.A. Kovaltsov

Journal:

Advances in Space Research

Year:

2001

Language:

english

File:

PDF, 550 KB

english, 2001

19

Nitrate abundance in polar ice during the great solar activity minimum

O.G. Gladysheva, G.E. Kocharov, G.A. Kovaltsov, I.G. Usoskin

Journal:

Advances in Space Research

Year:

2002

Language:

english

File:

PDF, 360 KB

english, 2002

20

A 22-year cycle in sunspot activity

K. Mursula, I.G. Usoskin, G.A. Kovaltsov

Journal:

Advances in Space Research

Year:

2002

Language:

english

File:

PDF, 518 KB

english, 2002

21

Monte-Carlo approach to galactic cosmic ray propagation in the heliosphere

M. Gervasi, P.G. Rancoita, I.G. Usoskin, G.A. Kovaltsov

Journal:

Nuclear Physics B - Proceedings Supplements

Year:

1999

Language:

english

File:

PDF, 466 KB

english, 1999

22

Propagation of solar cosmic rays: Diffusion versus focused diffusion

L. G. Kocharov, J. Torsti, R. Vainio, G. A. Kovaltsov

Journal:

Year:

1996

Language:

english

File:

PDF, 257 KB

english, 1996

23

A joint analysis of high-energy neutrons and neutron-decay protons from a flare

L. G. Kocharov, J. Torsti, R. Vainio, G. A. Kovaltsov, I. G. Usoskin

Journal:

Year:

1996

Language:

english

File:

PDF, 1.39 MB

english, 1996

24

Generation of high-energy neutral radiation in flare loops

L. G. Kocharov, G. A. Kovaltsov

Journal:

Year:

1990

Language:

english

File:

PDF, 1.01 MB

english, 1990

25

Generation of high-energy neutral radiation in flare loops

V. G. Gueglenko, G. E. Kocharov, G. A. Kovaltsov, L. G. Kocharov, N. Z. Mandzhavidze

Journal:

Year:

1990

Language:

english

File:

PDF, 1.50 MB

english, 1990

26

The 1990 May 24 solar cosmic-ray event

J. Torsti, L. G. Kocharov, R. Vainio, A. Anttila, G. A. Kovaltsov

Journal:

Year:

1996

Language:

english

File:

PDF, 1.35 MB

english, 1996

27

Neutron and electromagnetic emissions during the 1990 May 24 solar flare

L. G. Kocharov, Jeongwoo W. Lee, H. Zirin, G. A. Kovaltsov, I. G. Usoskin, K. R. Pyle, M. A. Shea, D. F. Smart

Journal:

Year:

1994

Language:

english

File:

PDF, 1.85 MB

english, 1994

28

The 1991 March 22 flare: Possible anisotropy of high-energy neutral emission

L. G. Kocharov, Jeongwoo W. Lee, H. Wang, H. Zirin, G. A. Kovaltsov, I. G. Usoskin

Journal:

Year:

1995

Language:

english

File:

PDF, 1.59 MB

english, 1995

29

Electromagnetic and corpuscular emission from the solar flare of 1991 June 15: Continuous acceleraton of relativistic particles

L. G. Kocharov, G. A. Kovaltsov, G. E. Kocharov, E. I. Chuikin, I. G. Usoskin, M. A. Shea, D. F. Smart, V. F. Melnikov, T. S. Podstrigach, T. P. Armstrong, H. Zirin

Journal:

Year:

1994

Language:

english

File:

PDF, 1.60 MB

english, 1994

30

The World Neutron Monitor Network as a tool for the study of solar neutrons

I. G. Usoskin, G. A. Kovaltsov, H. Kananen, P. Tanskanen

Journal:

Annales Geophysicae

Year:

1997

Language:

english

File:

PDF, 909 KB

english, 1997

31

An Upper Limit on Sunspot Activity During the Maunder Minimum

G. A. Kovaltsov, I. G. Usoskin, K. Mursula

Journal:

Year:

2004

Language:

english

File:

PDF, 673 KB

english, 2004

32

Adiabatic Deceleration Effects on the Formation of Heavy Ion Charge Spectra in Interplanetary Space

J. J. Kartavykh, W. DrÖge, G. A. Kovaltsov, V. M. Ostryakov

Journal:

Year:

2005

Language:

english

File:

PDF, 1.17 MB

english, 2005

33

Long-Term Solar Activity: Direct and Indirect Study

I. G. Usoskin, G. A. Kovaltsov

Journal:

Year:

2004

Language:

english

File:

PDF, 585 KB

english, 2004

34

Global Heliospheric Parameters and Cosmic-Ray Modulation: An Empirical Relation for the Last Decades

K. Alanko-Huotari, K. Mursula, I. G. Usoskin, G. A. Kovaltsov

Journal:

Year:

2006

Language:

english

File:

PDF, 360 KB

english, 2006

35

Critical Comment on the Article by R.

I. G. Usoskin, G. A. Kovaltsov

Journal:

Year:

2010

Language:

english

File:

PDF, 266 KB

english, 2010

36

Cosmic Ray Induced Ion Production in the Atmosphere

G. A. Bazilevskaya, I. G. Usoskin, E. O. Flückiger, R. G. Harrison, L. Desorgher, R. Bütikofer, M. B. Krainev, V. S. Makhmutov, Y. I. Stozhkov, A. K. Svirzhevskaya, N. S. Svirzhevsky, G. A. Kovaltsov

Journal:

Space Science Reviews

Year:

2008

Language:

english

File:

PDF, 1.03 MB

english, 2008

37

Dynamics of the Earth’s Particle Radiation Environment

Rami Vainio, Laurent Desorgher, Daniel Heynderickx, Marisa Storini, Erwin Flückiger, Richard B. Horne, Gennady A. Kovaltsov, Karel Kudela, Monica Laurenza, Susan McKenna-Lawlor, Hanna Rothkaehl, Ilya

Journal:

Space Science Reviews

Year:

2009

Language:

english

File:

PDF, 1.17 MB

english, 2009

38

Toolkit for UNK equipment controllers development

Yu. Bardik, A. Dunaitsev, E. Kallistratov, L. Kim, V. Komarov, V. Kovaltsov, A. Lukyantsev, A. Machnachev, A. Matyushin, G. Obukhov, V. Soloviev, A. Sytin, Yu. Tchernoousko, G. Tishin, N. Trofimov, P.

Journal:

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

Year:

1994

Language:

english

File:

PDF, 224 KB

english, 1994

39

Correlation between clouds at different altitudes and solar activity: Fact or Artifact?

I.G. Usoskin, M. Voiculescu, G.A. Kovaltsov, K. Mursula

Journal:

Journal of Atmospheric and Solar-Terrestrial Physics

Year:

2006

Language:

english

File:

PDF, 1.34 MB

english, 2006

40

Heliospheric modulation strength: effective neutron monitor energy

K. Alanko, I.G. Usoskin, K. Mursula, G.A. Kovaltsov

Journal:

Advances in Space Research

Year:

2003

Language:

english

File:

PDF, 505 KB

english, 2003

41

Ionization of the earth’s atmosphere by solar and galactic cosmic rays

Ilya G. Usoskin, Laurent Desorgher, Peter Velinov, Marisa Storini, Erwin O. Flückiger, Rolf Bütikofer, Gennady A. Kovaltsov

Journal:

Acta Geophysica

Year:

2009

Language:

english

File:

PDF, 601 KB

english, 2009

42

Possibility of solar energetic particles enrichment with trans-iron ions via the effect of coulomb losses in the acceleration region

Yu. Yu. Kartavykh, W. Dröge, B. Klecker, G. A. Kovaltsov, L. Kocharov, E. Möbius

Journal:

Bulletin of the Russian Academy of Sciences: Physics

Year:

2011

Language:

english

File:

PDF, 163 KB

english, 2011

43

PHASE EVOLUTION OF SOLAR ACTIVITY AND COSMIC-RAY VARIATION CYCLES

I. G. Usoskin, G. A. Kovaltsov, H. Kananen, K. Mursula, P. J. Tanskanen

Journal:

Year:

1997

Language:

english

File:

PDF, 76 KB

english, 1997

44

Impact of Magnetic Environment on the Generation of High-Energy Neutrons at the Sun

L. G. Kocharov, J. Torsti, F. Tang, H. Zirin, G. A. Kovaltsov, I. G. Usoskin

Journal:

Year:

1997

Language:

english

File:

PDF, 378 KB

english, 1997

45

Adiabatic Deceleration of Solar Energetic Particles as Deduced from Monte Carlo Simulations of Interplanetary Transport

L. Kocharov, R. Vainio, G. A. Kovaltsov, J. Torsti

Journal:

Year:

1998

Language:

english

File:

PDF, 167 KB

english, 1998

46

Simulation of Sunspot Activity During Active Sun and Great Minima Using Regular, Random and Relic Fields

I.G. Usoskin, K. Mursula, G.A. Kovaltsov

Journal:

Year:

2001

Language:

english

File:

PDF, 161 KB

english, 2001

47

Heliospheric modulation strength during the neutron monitor era

I.G. Usoskin, K. Alanko, K. Mursula, G.A. Kovaltsov

Journal:

Year:

2002

Language:

english

File:

PDF, 139 KB

english, 2002

48

Reconstruction of Monthly and Yearly Group Sunspot Numbers From Sparse Daily Observations

I.G. Usoskin, K. Mursula, G.A. Kovaltsov

Journal:

Year:

2003

Language:

english

File:

PDF, 347 KB

english, 2003

49

Neutron monitor data on the 15 June 1991 flare: Neutrons as a test for proton acceleration scenario

G. A. Kovaltsov, I. G. Usoskin, L. G. Kocharov, H. Kananen, P. J. Tanskanen

Journal:

Year:

1995

Language:

english

File:

PDF, 422 KB

english, 1995

50

Solar flare neutrinos

G. E. Kocharov, G. A. Kovaltsov, I. G. Usoskin

Journal:

Il Nuovo Cimento C (Springer)

Year:

1991

Language:

english

File:

PDF, 305 KB

english, 1991

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