2015-2016 Science Planning Summaries
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2015-2016 USAP Field Season
Project Detail

Project Title

Element composition of high-energy solar particles

Element composition of high-energy solar particles


Event Number:

Program Manager:
Dr. Vladimir Papitashvili

ASC POC/Implementer:
Samina Ouda / Paul Sullivan

Principal Investigator

Dr. Paul Evenson

University of Delaware
Physics and Astronomy
Newark, Delaware

Project Web Site:
http://neutronm.bartol.udel.edu/ External Web Site


Supporting Stations: South Pole Station
Research Locations: B2 Science Building


This project operates a neutron-monitor suite, which serves as the linchpin of the worldwide neutron monitor network at low energies. Opening the IceCube Neutrino Observatory has added a new dimension to this capability: the IceTop array of ice Cherenkov detectors. Central to the research is understanding the response of these detectors to the radiation environment of the South Pole, particularly to determine the cause of the peculiar secular decline in cosmic ray intensity at South Pole throughout the 50-year operating period of the neutron monitor. Understanding this decline is important because cosmic rays produce radionuclides like Beryllium-10 that become trapped in the ice and are used to determine ice-core ages and precipitation levels over Earth's polar regions. An understanding of the production rate is vital to interpreting these data.

Field Season Overview

Three participants will deploy to South Pole Station where they will spend one week servicing the neutron monitor.

Deploying Team Members

  • James Madsen (Co-PI)
  • Laura Moon
  • Joseph Wagner