kris whelan lawrence berkeley national lab -...

Cosmic Ray e-Lab

Kris WhelanLawrence Berkeley National Lab

Teaching and Learningwith Cosmic Rays

•QuarkNet overview

•QuarkNet Cosmic Ray Detector

assemble CRMD hardware & take data

•Cosmic Ray e-Lab exploration

upload & analyze data


Workshop Objectives:• Assemble CRMD: plateau, geometry, data-take

• Record progress: LogBook

• Design e-Lab investigation: data, tools, plots

• Write poster, present results

• Share “Implementation Plan” and strategy


Active QuarkNet Centers

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Difference in Absolute Time

• Cosmic Rays– Sources– Composition, energy spectrum– Detection– Current experiments

• The QuarkNet Classroom Detector– Hardware overview– Classroom use– Experiments, measurements

• Data Analysis– Upload, analyze data & save data products– Share results– Enter logbook notes



•Paradigm: a good way to learn science?

--> participate in data-based science

−ask cosmic ray questions

−marshal a research plan

−engage hardware and technology

−analyze realistic, not simulated data

−share results with collaboration


Cosmic Ray e-Lab stats: June 2009

•622 teachers accounts

•1162 student research groups

•20,000(ish) analyses run

•317 detectors in high schools

•21029 data files

•321 posters


QuarkNet creates a collaboration of users

Teachers <---> Students

Teachers <---> Mentor Scientists

Detector Schools <---> Non-Detector Schools

World-wide network: Students <--> Students

• Sources of Cosmic Rays– Supernova remnants– Active galaxies (?)– Quasars (?)– Gamma Ray Bursters (?)– Dark Energy (?)


• Cosmic rays at earth– primaries (protons, nuclei)– secondaries (pions)– decay products (muons, photons, electrons)

1-2 μ per second



Run: CR shower video if fast connectionhttp://astro.uchicago.edu/cosmus/projects/aires/protonshoweroverchicago.mpeg


• Wealth of open, cool science questions• ?: WX, lightning, biology, climate,

data bits, solar storms

• CR e-Lab --> not prescriptive, not recipes

• Provide resources and analysis tools

• Trust the teacher to guide research

BIG science: Students copy/reproduce• Auger --> Argentina

http://www.auger.org• MINOS Far Detector --> Soudan Mine, Minnesota

http://farweb.minos-soudan.org/events/• CMS --> LHC, CERN, Switzerland

http://cms.cern.ch/• IceCube --> South Pole

http://icecube.wisc.edu/

--> QuarkNet Cosmic Ray e-Lab Studies:direct analog to detector based particle physics

e-Labs

http://cms.cern.ch/

• Teachers & students– assemble– calibrate– set-up & run


Overview: Cosmic Ray Muon Detector


• The QuarkNet Cosmic Ray Muon Detector (CRMD)– plastic scintillator– homegrown DAQ– GPS timing



CRMDTypical QuarkNet Detector Setup1. Counters-scintillators,

photomultiplier tubes (two shown)

2. QuarkNet DAQ board3. 5 VDC adapter4. GPS receiver 5. GPS extension cable6. RS-232 cable (to link

to computer serial port)7. Optional RS-232 to USB adapter

(to link to computer USB port instead of serial port)

8. Lemo or BNC signal cables9. Daisy-chained power cables


CRMD expectation: --> not “plug&play”--> rather “mold&set”

Direct analog of the big detectors in Tevatron and LHC

• DAQ Hardware measures– light pulse timing– ambient temperature– atmospheric pressure

• Experiments include– Flux studies– Time correlation – Shielding– Particle speed– Particle lifetime– Altitude attenuation



Types of counter configuration1) array --> shower

counters distributed2) stacked --> flux

counters spaced on common center

• Determined by type of CR study• Student defined


NEXT SESSION: Breakout into small teams

--> Assemble Cosmic Ray Muon Detectors4 counters: one team eachDAQ/GPS: one team

Next: Cosmic Ray e-Lab and UPLOAD data


QuarkNet Cosmic Ray e-Lab Teacher AccountsEmail the following:

•Name:•Account Name:•School:•City/Country:•Email:

To: Bob Peterson--> [email protected]


Explore tonight

Cosmic Ray e-Lab portal:http://www.i2u2.org/elab/cosmic

-->LIBRARY-->STUDYGUIDE

• There has to be an easier way . . .

Cosmic Ray e-Lab <-- tomorrow


Cosmic Ray e-Lab Exploration


• DAQ Hardware measures– light pulse timing– ambient temperature– atmospheric pressure

• Experiments include– Flux studies– Time correlation – Shielding– Particle speed– Particle lifetime– Altitude attenuation


02F17C70 AE 3E 23 30 00 01 00 01 01BAB196 053657.359 260105 A 10 0 +036519262F0A 80 01 00 01 00 01 3B 01 1814BD14 053706.358 260105 A 10 0 +036519262F0B 28 01 00 01 00 01 01 2A 1814BD14 053706.358 260105 A 10 0 +036519262F0C 01 21 00 01 00 01 00 01 1814BD14 053706.358 260105 A 10 0 +036523246B23 A5 34 00 01 00 01 2E 3A 2203DEA2 053710.358 260105 A 10 0 +0366. . .

• Raw Data


2453396 6341848883424871 6341848883426071 12.00

• There has to be an easier way . . .

--> Cosmic Ray e-Lab

Lower the threshold to analyzing real data


But there are more e-Labs on the horizon……

• Ligo -- weeks away• CMS -- months away• Atlas -- year away• Other science with large data sets….

SDSS? Mars Rover? weather? ocean?

e-Labs

Major strength of e-Labs……

• First time: teachers and students --> GRIDLarge cluster of machines at Argonne Nat’l Lab GRID gateway at Univ of Chicago

• e-Labs: same structure & format, “look/feel”

e-Labs


Cosmic Ray e-Lab portal: http://www.i2u2.org/elab/cosmic


Cosmic Ray e-Lab Tourhttp://www.i2u2.org/elab/cosmic

LoginUsername:Password:

Follow: Teacher Home


Cosmic Ray e-Lab Tour http://www.i2u2.org/elab/cosmic

Follow: Teacher Home


Cosmic Ray e-Lab --> Learner OutcomesStudents will know and be able to:

•Content and Investigation•Process•Computing•Literacy


Go to: REGISTRATION1st: change password

--> Update your previously created groups.!! min 6 characters: alpha/numeric !!

2nd: create Student Group--> Register student research groups.

Select “pencil”: yes pre/post test3rd: add DAQ#

--> Update detector IDs for your group.


Cosmic Ray e-Lab Tourhttp://quarknet.fnal.gov/e-lab

Follow: Student Home


Home




Library



Study Guide



Workflow & Milestones



Upload


Pause: live action demo

--> UPLOAD data: follow me

--> GEOMETRY: review tutorial



Data


‘nother live action demo--> PERFORMANCE studyWhat is this telling us?Why do this study?Compare? Contrast?



Posters



New Poster



Site Index



Assessment


My Logbook



Follow upper right: My Logbook




Data



Shower


More live action --> Examples•Data Search•Shower Analysis•Flux Analysis



Data

Reproduce analysis:--> click on plot--> run study again--> change parameters

View P lots


Cosmic Ray e-Lab Investigation--> Team Task: Data Analysis

a) Pose a simple CR research questionb) Select small CR data setc) Run CR Analysisd) Save PERF and analysis plotse) Track your progress using the LOGBOOKf) Write online Poster about study with plot

include PERF and analysis plotg) Share “Tricks of the Trade” about the e-Lab

Judge your constraints: time and $$$


Cosmic Ray e-Lab Investigation--> Teacher Task: Implementation Plan

a) Build classroom activityb) Load --> wiki: Workshop Deliverableshttp://www18.i2u2.org/forum_forum.php?id=61……do not yet have an account, you can create one hereInvitation Code: inquiryPassword: same as your e-Lab password !!

Guiding Questions:•How would you use the CR e-Lab in your classroom?•How do the Learner Outcomes apply to your activity?•What makes self-guided research beneficial?•Highlight one interesting feature you found in the QN e-Lab.

http://www18.i2u2.org/forum_forum.php?id=61


CRMD/e-Lab workshop DeliverablesEvery project constrained: time and $$$

•Cosmic Ray e-Lab Investigation--> Team Task: POSTER--> Teacher Task: Implementation Plan --> wiki

•workshop evals --> participants:http://www13.i2u2.org/cosmic/library/upload/4/45/QNetSurveyforFellows_061207.doc•workshop report --> Fellow:http://www13.i2u2.org/cosmic/library/upload/f/f0/Fellows-wkshop-form.doc

•CRMDs --> Center placement list and plan

http://www13.i2u2.org/cosmic/library/upload/4/45/QNetSurveyforFellows_061207.doc

http://www13.i2u2.org/cosmic/library/upload/f/f0/Fellows-wkshop-form.doc


Workshop Review --> How’d we do?

•Assemble CRMD: plateau, geometry, data-take

•Record progress: LogBook

•Design investigation: search data, use analysis

•Write poster, present results

•Share “Implementation Plan” for the Cosmic Ray e-Lab

kris whelan lawrence berkeley national lab -...

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