wp2 meeting, oct 2006, cppm claudine colnard - nikhef claudine colnard, ronald bruijn, eleonora...
TRANSCRIPT
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• …..