“I have really discovered how beautiful science physics is and I have enjoyed every second of...

21 December 200421 December 2004 11NIKHEF jaarvergadering, Ilka Tánczos & Henk Jan BultenNIKHEF jaarvergadering, Ilka Tánczos & Henk Jan Bulten

““I have really discovered how I have really discovered how beautiful science physics is and I beautiful science physics is and I have enjoyed every second of it”have enjoyed every second of it”

Andreas Pantelis H5CAndreas Pantelis H5C

21 December 200421 December 2004 NIKHEF jaarvergadering, Ilka Tánczos NIKHEF jaarvergadering, Ilka Tánczos & Henk Jan Bulten& Henk Jan Bulten

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What is HiSPARC?What is HiSPARC?

1. An experiment to detect high energy cosmic particles and to study their origin.

2. A project to show high schools students a realistic picture of the work at scientific institutes, to stimulate the choice for a scientific study.


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Air showers…Air showers…

(Figure from Nagano en Watson, Rev. Mod. Phys. 72, 689 (2000)).

Air showers: highestenergies occur rarely(e.g. 1 event per 100

square kilometer per year)


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To detect cosmic showers, a network

of detectors is made…

GPS

……air shower detectionair shower detection


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…build and managed by high-school students


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• 5 clusters• ~30 schools

actively involved, ~ 10 in pipeline

• More than 150 students and 50 teachers

• Physics students!

StatusStatus


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“I had 4 unmotivated pupils. They participated in HiSPARC and now they are my most enthusiastic students” F. Lapoutre, Science teacher

TeachersTeachers

“This cooperation is just what is needed to show pupils at High School what Science is all about”

B. Vrijdaghs, Science teacher


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•Development of educational materials (e.g. A. de Leeuw)•Electronic learning environment (J. Colle and F. Hidde)•Analysis, profielwerkstukken•Teacher network

Teacher involvementTeacher involvement


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Highlights 2004Highlights 2004

• 22 new detector stations• 2 new LIO’s in Amsterdam• First national teachers workshop• Altran Foundation Award 2004 • Support from ‘Deltapunt’ for the

development of a HiSPARC educational module (90 k€)

• Support from OC&W for ‘Innovation at High Schools’ (233 k €)


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High school student activitiesHigh school student activities• In Nijmegen: building and analysis• In other clusters: mainly building the detector


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The HiSPARC DetectorThe HiSPARC Detector

From the ‘profielwerkstuk’ from Utrecht (Pieterde Goeje, Veerle Bodewes, Brend Wanders)


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““Profielwerkstukken”Profielwerkstukken”• about 150 students

– building detector• oscilloscope, impedance matching, fast electronics• particles, muons, cosmic rays, showers, scintillation,

photo-electric effect• hardware, grinding, polishing etc.• calibrations, excel, statistics (Poisson, Gaussian

distributions)– several movies and interviews– HiSPARC web sites– software development– GPS positioning– Data analysis– promotion videos etc.

• 2005: Review committee and HiSPARC journal

students calibrating a scintillator plate


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HiSPARC DAQHiSPARC DAQ


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Data retrievalData retrieval

• Data : retrievable via website• mysql database

pulshoogte

1

10

100

1000

10000

0 50 100 150 200

pulshoogte [mV]

aan

tal


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• Rate dependence on weather ( F. Hidde, Herman Wesselink College)– thunderstorm on Nov. 26


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ElectronicsElectronics• Much effort NIKHEF ET

– 35 produced • Non-scalable (mass

production)• Improved design from

Altran– Rob Derlage

(Altran)– analog part: Hans

Verkooijen (NIKHEF)


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Altran designAltran design

IF

IF ADC 1A12-bit

210 MSPS

ADC 1B12-bit

210 MSPS

IF ADC 2A12-bit

210 MSPS

ADC 2B12-bit

210 MSPS

Integrator Control DAC

GPS Receiver Module

GPS Antenna

Sci

ntill

ator

IS

cint

illat

or I

I

Photo Multiplier Control DAC

12V PSPhoto Multiplier

To Photo Multipliers I and II

Central Processing Unit

(FPGA)

OCXO(Clock Generator)

Status Indicators

Clock Skew and PLL

Master BUS

SLAVE BUS

USB Interface

EEPROM(Settings)

JTAG Interface

Trigger I/O

Sci

ntill

ator

III

IF

Sci

ntil

lato

r IV

Optional

•usb interface•integrated ADC’s – 440 MHz sampling•integrated GPS timing•fully programmable logic and settings•up to 4 channels•scaler readout, etc.•cost reduction, factor 3


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Press CoveragePress Coverage• many (~50) news

paper articles– including 3 in

Volkskrant and 1 in NRC

– Natuur, wetenschap and techniek

– intermediair• national radio• RTV NH• article in Nature

– june 17, 2004 vol. 6993

• first scientific results in NtvN (Ch. Timmermans)


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Outlook:Outlook:• “Ready to grow” (Altran)

– Electronics– Data warehousing– Organization– Funding

• Expansion to other fields– MeteoKids and Kennislink– Lofar@school (Nijmegen started)– Virtual school lab (grid and Coach)– www.geluids.net

• International workshop (March 2005) at NIKHEF• HiSPARC goes to Africa: Sudan

21 December 200421 December 2004 2020NIKHEF jaarvergadering, Ilka Tánczos & Henk Jan BultenNIKHEF jaarvergadering, Ilka Tánczos & Henk Jan Bulten

More information on:More information on:

www.hisparc.nlwww.hisparc.nl

“I have really discovered how beautiful science physics is and I have enjoyed every second of...

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