About the WALTA Project

WAshington Large Area Time coincidence Array is a project to investigate the highest energy cosmic rays with the participation of middle and high school students and teachers throughout the Seattle area. Click on the following links for more information.

• WALTA in a nutshell
• Map of participating schools (as of 8/03).
• Introduction to the science of WALTA
• Why is WALTA important? 
• Comments from  participating teachers and students
• Map (.gif or .pdf) showing Seattle-area schools participating in WALTA 
• The Organizations and People involved in WALTA
  • Mug shots of UW WALTA crew
• Summaries of the WALTA Project
1. For non-scientists
2. "WALTA: Connecting Schools to Basic Research in Seattle", presentation by J. Wilkes (5 MB pdf file)
3. The Washington Large Area Time Coincidence Array (.pdf file, paper presented at the 26th International Cosmic Ray Conference, 1999).
• Brochure about WALTA for teachers and students (rev. 10/01): html or PDF
• Papers on WALTA presented at the 2003 IEEE Nuclear Science Symposium in Portland
  • WALTA school-network cosmic ray detectors, R. Gran et al, IEEE Trans. on Nucl. Sci. 51:1385, 2004.

  • Low cost data acquisition card for school network cosmic ray detectors, S. Hansen, et al, IEEE Trans. on Nucl. Sci. 51:926, 2004.

  • GPS Time synchronization in school-network cosmic ray detectors, H. Berns, et al, IEEE Trans. on Nucl. Sci. 51:848, 2004. 

• Posters you can download and print (Note: WALTA teachers only; others must request permission from RJW):
  • WALTA poster (presented at the 28th International Cosmic Ray Conference (ICRC), Tsukuba, Japan, July 2003) (0.8MB, ppt)
  • WALTA poster (presented at the IEEE-NSS meeting, Portland, OR, October 2003) (1.8MB, ppt)
  • GPS Time Synchronization in WALTA (presented at the IEEE-NSS meeting, Portland, OR, October 2003) (1.0MB, ppt)
  • LabView Interface for QuarkNet DAQ card (presented at the IEEE-NSS meeting, Portland, OR, October 2003) (3.6MB, ppt)
  The ICRC poster is landscape orientation, 48"Wx36"H. The others are portrait orientation, 36"Wx48"H.
• Map showing potential WALTA sites (.jpg, 160K)
• List of coordinates and plot (.pdf file) for potential WALTA module sites

last update: 12/15/2004