21 December 2004 1 NIKHEF jaarvergadering, Ilka Tánczos & Henk Jan Bulten “I have really discovered how beautiful science physics is and I have enjoyed

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 & Henk Jan BultenNIKHEF jaarvergadering, Ilka Tánczos & Henk Jan Bulten 22

What is HiSPARC?What is HiSPARC?

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

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


Air showers…Air showers…

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

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

square kilometer per year)square kilometer per year)


To detect cosmic To detect cosmic showers, a network showers, a network

of detectors is of detectors is made…made…

GPS

……air shower detectionair shower detection


…build and managed by build and managed by high-school studentshigh-school students


• 5 clusters5 clusters• ~30 schools ~30 schools

actively involved, actively involved, ~ 10 in pipeline~ 10 in pipeline

• More than 150 More than 150 students and 50 students and 50 teachersteachers

• Physics students!Physics students!

StatusStatus


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

F. Lapoutre, Science teacherF. Lapoutre, Science teacher

TeachersTeachers

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

B. Vrijdaghs, Science teacherB. Vrijdaghs, Science teacher


• Development of Development of educational materialseducational materials(e.g. A. de Leeuw)(e.g. A. de Leeuw)

• Electronic learning Electronic learning environmentenvironment(J. Colle and F. Hidde)(J. Colle and F. Hidde)

• Analysis, Analysis, profielwerkstukkenprofielwerkstukken

• Teacher networkTeacher network

Teacher involvementTeacher involvement


Highlights 2004Highlights 2004

• 22 new detector stations22 new detector stations• 2 new LIO’s in Amsterdam2 new LIO’s in Amsterdam• First national teachers workshopFirst national teachers workshop• Altran Foundation Award 2004 Altran Foundation Award 2004 • Support from ‘Deltapunt’ for the Support from ‘Deltapunt’ for the

development of a HiSPARC educational development of a HiSPARC educational module (90 k€)module (90 k€)

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


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


The HiSPARC DetectorThe HiSPARC Detector

Taken from Utrecht “profielwerkstuk”Taken from Utrecht “profielwerkstuk”(Pieter de Goeje, Veerle Bodewes, Brend (Pieter de Goeje, Veerle Bodewes, Brend

Wanders)Wanders)


““Profielwerkstukken”Profielwerkstukken”

• about 150 studentsabout 150 students– building detectorbuilding detector

• muons, cosmic rays, showers, scintillation, muons, cosmic rays, showers, scintillation, photo-electric effect, special relativityphoto-electric effect, special relativity

• oscilloscope, impedance matching, fast oscilloscope, impedance matching, fast electronicselectronics

• mechanics, grinding, polishing, gluing etc.mechanics, grinding, polishing, gluing etc.• calibrations, excel, statisticscalibrations, excel, statistics

– HiSPARC web sitesHiSPARC web sites– software developmentsoftware development– GPS positioningGPS positioning– data analysisdata analysis– promotion videos etc.promotion videos etc.

• 2005: Review committee2005: Review committee and HiSPARC journal and HiSPARC journal

students calibrating a scintillator platestudents calibrating a scintillator plate


HiSPARC DAQHiSPARC DAQ


pulshoogte

1

10

100

1000

10000

0 50 100 150 200

pulshoogte [mV]

aan

tal

Data retrievalData retrieval

• Data : retrievable via Data : retrievable via websitewebsite

• MySql databaseMySql database


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


ElectronicsElectronics

• Much effort NIKHEF ETMuch effort NIKHEF ET– 35 produced 35 produced

• Not suited for mass- Not suited for mass- productionproduction

• Improved design from Improved design from AltranAltran– Rob Derlage (Altran)Rob Derlage (Altran)– analog part: NIKHEFanalog part: NIKHEF


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 interfaceusb interface• integrated ADC’s – 440 integrated ADC’s – 440

MHz samplingMHz sampling• integrated GPS timingintegrated GPS timing• fully programmable logic fully programmable logic

and settingsand settings• up to 4 channelsup to 4 channels• scaler readout, etc.scaler readout, etc.• cost reduction, factor cost reduction, factor

3 !3 !


Press CoveragePress Coverage• many (~50) news-many (~50) news-

paper articlespaper articles– including 3 in including 3 in

‘Volkskrant’ and ‘Volkskrant’ and 1 in ‘NRC’1 in ‘NRC’

– Natuur, Natuur, Wetenschap Wetenschap and Techniekand Techniek

– IntermediairIntermediair• national radionational radio• RTV NHRTV NH• article in Naturearticle in Nature

– June 17, 2004 June 17, 2004 vol. 6993vol. 6993

• first scientific first scientific results in NtvNresults in NtvN (NAHSA(NAHSA))


Outlook:Outlook:

• ““Ready to grow” (Altran)Ready to grow” (Altran)– ElectronicsElectronics– Data warehousingData warehousing– OrganisationOrganisation– FundingFunding

• Expansion to other fieldsExpansion to other fields– MeteoKids and KennislinkMeteoKids and Kennislink– Lofar@school (Nijmegen started)Lofar@school (Nijmegen started)– Virtual School Lab (GRID and COACH)Virtual School Lab (GRID and COACH)– www.geluids.net

• International workshop (March 2005) at NIKHEFInternational workshop (March 2005) at NIKHEF


……and…and…

HiSPARC goes toAfrica

Sudan!Sudan!

Documents

21 December 2004 1 NIKHEF jaarvergadering, Ilka Tánczos & Henk Jan Bulten “I have really discovered how beautiful science physics is and I have enjoyed