H.J. Bulten NIKHEF annual meeting, 21-22 Dec. 04

Hisparc Status

hisparc project: outreach hisparc mission

examples of students participationprogress 2004plans for 2005

H.J. Bulten NIKHEF annual meeting, 21-22 Dec. 04

Showers

Hisparc: outreach project bring high-school students in

contact with science participate in scientific

experiment air showers: highest energies

occur rarely (e.g. 1 event per 100 square kilometer per year)

determine energy and direction with scintillators on school roofs.

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

H.J. Bulten NIKHEF annual meeting, 21-22 Dec. 04

detector 2 scintillator detectors placed a few meters apart (typical

coincidence rate of 0.3 Hz) a GPS antenna for accurate timing From the ‘profielwerkstuk’ from Utrecht (Pieter de Goeje,

Veerle Bodewes, Brend Wanders) http://osg-schoonoord.doorn.kennisnet.nl/vwo-5/intern/napohisparc/

H.J. Bulten NIKHEF annual meeting, 21-22 Dec. 04

Activities 2004 Nahsa (Nijmegen, Charles Timmermans) started in 2002.

increased to 7 active detectors focuses also on data analysis published first scientific result (NtvN).

Active detectors in Amsterdam (14 built, 12 installed) new electronics hisparc website, www.hisparc.nl (Kees Huyser)

Leiden 1 detector active, above minigrail 2 more in progress in region Leiden. Next year: Khartoum Sudan (pierre van

Baal)

Utrecht 1 detector active, 2 being built measured tracks

Groningen 4 detectors being built

H.J. Bulten NIKHEF annual meeting, 21-22 Dec. 04

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

H.J. Bulten NIKHEF annual meeting, 21-22 Dec. 04

Student activities about 150 “profielwerkstukken” building detector

particles, muons, cosmic rays, showers, scintillation, photo-electric effect

oscilloscope, impedance matching, fast electronics hardware, grinding, polishing etc. calibrations, excel, statistics (Poisson, Gaussian distributions)

several movies and interviews most schools with web sites software development cosmic rays GPS positioning weather promotion videos etc.

students calibrating a scintillator plate

H.J. Bulten NIKHEF annual meeting, 21-22 Dec. 04

Hisparc DAQ

H.J. Bulten NIKHEF annual meeting, 21-22 Dec. 04

Data retrieval Data : retrievable via website mysql database

pulshoogte

1

10

100

1000

10000

0 50 100 150 200

pulshoogte [mV]

aa

nta

l

H.J. Bulten NIKHEF annual meeting, 21-22 Dec. 04

data analysis Rate dependence on weather ( F. Hidde, Herman Wesselink

College) thunderstorm on Nov. 26

H.J. Bulten NIKHEF annual meeting, 21-22 Dec. 04

Electronics

lineair amplification modified filter,

impedance matching, integrator circuit

12 volt circuit for photomultiplier tube

modified coincidence timing

integrated scalers many thanks to

Henk Peek

H.J. Bulten NIKHEF annual meeting, 21-22 Dec. 04

Electronics, Altran

current design not scalable, too much man power involved

Improved design from Altran Rob Derlage (Altran) analog part: Hans Verkooijen

(NIKHEF) 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

H.J. Bulten NIKHEF annual meeting, 21-22 Dec. 04

Altran design (Rob Derlage)

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

ntill

ator

IV

Optional

technical design specifications are being discussed now

H.J. Bulten NIKHEF annual meeting, 21-22 Dec. 04

Press Coverage many (~50) news

paper articles including 3 in

Volkskrant and 1 in NRC

Natuur, wetenschap and techniek

intermediair

national radio,television Noord Holland article in Nature

june 17, 2004 vol. 6993

first scientific results in Nederlands tijdschrift voor Natuurkunde (Charles Timmermans)

H.J. Bulten NIKHEF annual meeting, 21-22 Dec. 04

Outlook Next year: get most out of Altran award

ready to grow electronics data warehousing funding, professional organization

electronic learning environment (J. Colle and F. Hidde) analysis, profielwerkstukken, teacher network (F. van Liempt et al.) contacts with Coach people (Amstel Institute)

hisparc analysis in coach, detector compatible with coach

European contacts (Poland, Sweden, Portugal, England...) make detector network

www.geluids.net weather information Lofar – Nijmegen is testing with a Lofar detector

possible grid at high schools, virtual school lab Peter Sloot (UvA)

H.J. Bulten NIKHEF annual meeting, 21-22 Dec. 04

Virtual laboratory

……High School Network…High School Network…

Grid MiddlewareGrid Middleware

Intelligent Detector InterfaceIntelligent Detector InterfaceGPSGPS

…… …

Wind

Wind

Sound

Sound

Cosm

icsC

osmics

Connect experiments, data and students in ‘Virtual Laboratory’

LOF

AR

LOF

AR