UNIVERSITY OF DELAWARE
BARTOL RESEARCH INSTITUTE
NEUTRON MONITOR PROGRAM


South Pole Sunset 2002
Neutron Monitor in Foreground

Welcome ! A neutron monitor is an instrument that measures the number of high-energy particles impacting Earth from space. For historical reasons these particles, mostly protons and helium nuclei, are called "cosmic rays." Because the intensity of cosmic rays hitting Earth is not uniform, it is important to place neutron monitors at multiple locations in order to form a complete picture of cosmic rays in space. Bartol Research Institute currently operates 8 neutron monitors.

At this site, you can obtain information about our observing stations and learn why scientists study cosmic rays. You can view real-time data from the neutron monitors, and you can download past neutron monitor data.

AUTOMATED GLE ALARM
We are pleased to announce that an automated GLE Alarm has been developed and is in beta testing. Click the link above for details and to receive Alarms by e-mail.

REAL-TIME COSMIC RAY SPECTRUM
Realtime station data is ordered according to cutoff rigidity, from top (Doi Inthanon, 17 GV) to bottom (polar stations, 0 GV).

7-STATION DISPLAY
Realtime data from seven polar (atmospheric cutoff) stations.

ICETOP SUMMARY RATES
IceTop is primarily a particle astrophysics experiment, but it also makes precision measurments of solar-terrestrial phenomena such as GLE and Forbush decreases.

DOI INTHANON NEUTRON MONITOR
A station opened in Thailand in 2008 has the highest cutoff (~17 GV) in the world.

A MAVERICK GLE
Ground Level Enhancements (GLE) are more likely to occur when the Sun is very active.
The most recent GLE was a maverick. It occurred near solar minimum, but it was a big one!

LARGEST GLE IN HALF A CENTURY !
Selected station data on the January 20, 2005 Ground Level Enhancement.

Cosmic Rays on Spaceship Earth
Cosmic rays, how to measure them, and how to see them.

Space Weather Prediction with Cosmic Rays _
Links to numerous realtime plots and space weather tools.

Downloadable Preprints and Reprints.

Selected Talks and Presentations.

Acknowledgement. The Bartol Research Institute neutron monitor program is supported by the United States National Science Foundation under grants PLR-1245939 and PLR-1341562, and by the University of Delaware Department of Physics and Astronomy and Bartol Research Institute. Construction of the stations in Fort Smith, Peawanuck, and Nain was supported by NSF's Major Research Infrastructure Program.
Any opinions, findings and conclusions or recomendations expressed on this Website are those of the authors and do not necessarily reflect the views of the National Science Foundation (NSF).


Site Guide


A NO-FRAMES version of this page is available.

STATIONS

The Bartol Research Institute currently operates 10 neutron monitors:

The monitors in Fort Smith, Peawanuck, and Nain are the newest stations in the Bartol network. They were constructed through a National Science Foundation Major Research Infrastructure grant, OPP-9724293. They began operating in Fall 2000.


PERSONNEL / POINTS OF CONTACT

  • Paul Evenson, Professor, Principal Investigator
  • evenson@udel.edu
  • Bartol Research Inst & Dept Physics and Astronomy
    217 Sharp Lab
    University of Delaware
    Newark, DE 19716
    U.S.A.
  • Phone: 302-831-2988
  • FAX: 302-831-1637
  • Contact for: Science, Space Weather, Funding Issues, Technical
  • John Clem, Research Associate Professor, Co-Principal Investigator
  • clem@bartol.udel.edu
  • Bartol Research Institute
    217 Sharp Lab
    University of Delaware
    Newark, DE 19716
    U.S.A.
  • Phone: 302-831-4354
  • FAX: 302-831-1637
  • Contact for: Science, Technical, Radiation Transport
  • K Roger Pyle, Data Manager
  • RogerPyle@gmail.com
  • Pyle Consulting Group, Inc.
    100 Illinois Ave. Suite 200,
    St. Charles, IL 60174
  • Phone: 630-945-3080
  • Contact for: Data Requests & Questions, Technical
  • James Roth, Electronics Technician
  • roth@bartol.udel.edu
  • Bartol Research Institute
    217 Sharp Lab
    University of Delaware
    Newark, DE 19716
    U.S.A.
  • Phone: 302-831-0846
  • FAX: 302-831-1637
  • Contact for: Logistics, Technical


RETIRED TEAM MEMBERS


Links to Other Cosmic Ray and Space Weather Sites


Page maintained by John W Bieber
jwbieber@bartol.udel.edu
Last modified: 2014 July 22