WP2 meeting, Oct 2006, CPPM Claudine Colnard - NIKHEF Claudine Colnard, Ronald Bruijn, Eleonora...

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WP2 meeting, Oct 2006, CPPM Claudine Colnard - NIKHEF laudine Colnard, Ronald Bruijn, Eleonora Presani, Siemen Meester, Paul Kooijman presented by Maarten de Jong) NIKHEF, Amsterdam, the Netherlands

Transcript of WP2 meeting, Oct 2006, CPPM Claudine Colnard - NIKHEF Claudine Colnard, Ronald Bruijn, Eleonora...

WP2 meeting, Oct 2006, CPPM

Claudine Colnard - NIKHEF

Claudine Colnard, Ronald Bruijn, Eleonora Presani, Siemen Meester, Paul Kooijman

(presented by Maarten de Jong)

NIKHEF, Amsterdam, the Netherlands

WP2 meeting, Oct 2006, CPPM

Claudine Colnard - NIKHEF

SIRENE was recently presented at the ECRS 2006 Symposium in Lisbon, 5-8th September.Paper proposed for proceedings:Claudine Colnard, “SIRENE: A new detector simulation package for high energy neutrino telescopes”

SIRENE is a flexible detector simulation program for kilometer scale neutrino telescopes with PMTs as photo-sensors.

SIRENE is primarily designed for use with the KM3NeT detector. It is being tested with ANTARES

SIRENE simulates light produced by muons and secondary particles traveling through water and the subsequent conversion of their photon field into a PMT hit probability.

SIRENE is designed as a library of C++ classes: different telescope geometries, different PMT configurations inside the optical modules can be easily implemented.

NEWS

What is SIRENE

WP2 meeting, Oct 2006, CPPM

Claudine Colnard - NIKHEF

TELESCOPE

= Vector <Abstract Module*>

PHOTON

• Wavelength• Time

derived from

MODULE HIT

= Vector < Photons>

ROTATION

PMT

• Type • Surface• Quantum efficiency• Transition Time• Transition Time Spread• Amplitude Spread

PMT EXTEND

MEDIUM

• Scattering Length• Scattering angle• Index of refraction

ANTARES WATER

ABSTRACT MODULE

MODULE

= Vector<PMT-EXTEND>

IDENTIFIER

SOURCE

MUON

• Water properties

EM SHOWER

• Time• Energy• Water properties

TRACK

• Initial time• Initial energy• Initial speed• Length

POSITION

• x, y, z

DIRECTION

, •

GEOMETRY

WP2 meeting, Oct 2006, CPPM

Claudine Colnard - NIKHEF

TELESCOPE

= Vector <Abstract Module*> derived from

ROTATION

PMT

• Type • Surface• Quantum efficiency• Transition Time• Transition Time Spread• Amplitude Spread

PMT EXTEND

ABSTRACT MODULE

MODULE

= Vector<PMT-EXTEND>

IDENTIFIER

POSITION

• x, y, z

DIRECTION

, •

GEOMETRY

PMT positioned inside module

Module is a set of PMTs

Telescope is a set of modules

A virtual sphere around a physical module

WP2 meeting, Oct 2006, CPPM

Claudine Colnard - NIKHEF

MODULE HIT

= Vector < Photons>

PHOTON

• Wavelength• Time

derived from

MEDIUM

• Scattering Length• Scattering angle• Index of refraction

ANTARES WATER

SOURCE

MUON

• Water properties

TRACK

• Initial time• Initial energy• Initial speed• Length

GEOMETRY

Different light sources

EM SHOWER

• Time• Energy• Water properties

Different mediaand scattering models

Photons at the module

WP2 meeting, Oct 2006, CPPM

Claudine Colnard - NIKHEF

CLASSES TO BUILD A TELESCOPE

TELESCOPEConsists of positioned virtual spheres, called Abstract Modules.

ABSTRACT MODULEA virtual sphere big enough to contain the physical module. Currently photons are tracked to the surface of this abstract module only. An algorithm for propagation to the PMTs inside the abstract module is under development.

MODULEConsists of one or more positioned PMTs; the PMTs need not to be physically in the same container.

PMT EXTENDGives an orientation and a position to the PMTs inside the module.

PMTDefines a Photo-multiplier.

WP2 meeting, Oct 2006, CPPM

Claudine Colnard - NIKHEF

CLASSES FOR THE TRACKING OF THE PARTICLES

SOURCE Type of light source. Currently implemented: Muons and Electro-magnetic (EM) showers have been implemented. New sources can be easily added.

EMSHOWER Produced by Bremsstrahlung photons from muons. All its energy deposited in a short distance and it is considered point-like.

TRACKParticle track.

MUONCharacterized by straight tracks losing energy and emitting Cherenkov light.Stochastic losses which produce independent electromagnetic showers are implemented.

MODULE HIT An Abstract Module with the list of photons that hit the corresponding virtual sphere

PHOTON Cherenkov photon

WP2 meeting, Oct 2006, CPPM

Claudine Colnard - NIKHEF

CLASSES FOR THE SCATTERING OF THE PARTICLES

MEDIUMProperties which allow to inclusion of the effect of the detection medium (sea water, ice, etc.) on light propagation.

ANTARES WATERWater properties and scattering model at the ANTARES Telescope’s site.New classes for the properties of the detection medium around different neutrino telescopes can be easily added.

WP2 meeting, Oct 2006, CPPM

Claudine Colnard - NIKHEF

Development time line:• Based on Fortran program (Paul Kooijman)• Dec 2005: First C++ classes (Claudine Colnard, Ronald Bruijn)• Aug 2006: Use of STL C++ Library (Claudine Colnard)• Sep 2006: I/O interface with the ANTARES event format (Claudine

Colnard)

Current developments: • Nov 2006: Interface with the ANTARES trigger (Claudine Colnard)

• Nov 2006: Auxiliary program for generation telescope and module geometries (Eleonora Presani, Siemen Meester)

• Dec 2006: GUI for generation geometries (Siemen Meester)•Dec 2006: First release of SIRENE for use with KM3NeT expected

WP2 meeting, Oct 2006, CPPM

Claudine Colnard - NIKHEF

New SIRENE team: Eleonora Presani (PhD), Siemen Meester (Masterstudent)

• Photon tracking inside an abstract module to the PMT• Comparison with KM3 using ANTARES geometry and readout

electronics• Multiple readout options: photonics, PMT ToT, FPGA• Interface with CAD/CAM• Installation wizzard• …..