Cosmic Ray Research in the Rochester Area Susen Clark PARTICLE lead teacher Bioscience & Health Careers H.S. at Franklin Professor Kevin McFarland, University of Rochester
PARTICLE PROGRAM Physicists And Rochester Teachers Inventing CLassroom Experiments • Started as a QUARKNET center • Has involved more than 25 teachers over a 5 year period • Involves teachers from areas west of Rochester to east of Syracuse. • Invite 6 new teachers/summer for a 3-week program • Past participants return for a 1 week institute
The Goals of PARTICLE: • Help local teachers learn more about high energy physics • Provide teachers with equipment for lab work during their Modern Physics unit • Get students to do research in high school • Expose students to work of research scientists
PARTICLE Teacher Summer Institutes • Program: – ⅜ Lecture and Discussion • Taxonomy and big picture of particle physics – Including experimental methods, lab tours, etc. • Other modern physics: relativity, quantum mechanics – ½ Lab work • Construct cosmic ray telescopes • Prototype student labs – ⅛ Discussion of Pedagogy, Classroom Applications
Particle Program • During the school year: – Professor Kevin McFarland (U of R) or the PARTICLE graduate student visits schools during the year to talk to students about various topics including the classroom research of students
Particle Program • During the school year: – Teachers have access to a shared equipment pool • Cloud chamber • Laminated lead for absorption study • E/m apparatus • Speed of light apparatus • Photoelectric effect apparatus
PARTICLE Day • Culminating Experience � Held in mid-May � Students present their research � Powerpoint or poster format � University professors give a few lectures � Students tour labs including the Laser Energetics Lab
Student Work at Franklin • Inner city high school • Physics is a semester course for juniors • First time completing an authentic research project • Students work in groups of 3 or 4 to investigate a topic of their choice.
Attacking the Research Project • Students complete individual research to investigate cosmic rays. • Find topics of interest. • Sign up for lab time. • Gather data. • Analyze the data (excel). • Prepare presentations.
Work at Pittsford Mendon • Joe Willie’s students at Pittsford Mendon http://pittsfordschools.org/webpages/jwillie/ • Data collected around time of solar flare. 9/18-11/11/03 Mendon Muon Run 4.3 4.2 4.1 4 3.9 3.8 3.7 3.6 3.5 0 200 400 600 800 1000 1200 1400 Time ( hour s)
Mendon Research 2003 2/28 - 3/17 Mendon Muon Run 3.55 • Single 3-week data run. 3.5 • Three class projects: 3.45 y = -0.0561x + 9.0124 R 2 = 0.327 3.4 Muon Rate (Hz) – Muon rate vs. pressure 3.35 3.3 – Muon rate vs. time of day 3.25 3.2 – Muon rate vs. geomag. Activity 3.15 99 99.5 100 100.5 101 101.5 102 102.5 Barometric Pressure (kilopascals) • (Using NOAA internet data) '03 M Mendon on M Muon on R Run: K i inde dex anal alysis Muon Rate vs. Time of Day 3.4 3.37 3.38 3.365 3.36 3.36 (Hz) P r e s s u r e C o r r e c t e d M u o n R a t e ( H z ) Rate ( 3.34 3.355 Muon R y = -0.0205x + 3.3911 R 2 = 0.9759 rrected M 3.35 3.32 Corre re C 3.345 Pressure 3.3 3.34 3.28 3.335 3.26 3.33 3.24 0 1 2 3 4 5 6 7 3.325 K in K index 0 5 10 15 20 25 Time of day (Hours)
Work by other students . . . 140 120 100 80 Muon Lifetime 60 • 40 20 Students’ value - 2.16 µ s – 0 -20 Material absorption/shielding • -40 30 60 90 120 150 180 210 240 270 300 330 360 390 420 Lead – Water – Location, location, location • Rooftop vs. basement – NY vs. SLAC – (Airplane, Space Shuttle) – Variation of muon rate with: • Pressure – Temperature – Direction – Greece Arcadia Solar Activity – student measures The list is expanding . . . • cosmic rays beneath swimming pool
Where do we go from here? • Jesse Chvojka, PARTICLE graduate student, has received a grant to work with several high schools on count rate vs. elevation by collecting data from plane rides. • Students across the greater Rochester area are completing research that will be presented at PARTICLE day in May. • Recruiting new teachers for the summer of 2004.
Web Sites • http://pas.rochester.edu/particle • http://pittsfordschools.org/webpages/jwillie
PARTICLE • PARTICLE is supported by: – National Science Foundation – Research Corporation – Quarknet – Department of Energy
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