Post on 20-Jan-2016
- L. Moscoso - KM3NeT CEA DSM Dapnia23/06/2005 1
KM3NeT
L. Moscoso
DAPNIA/SPP
CEA/Saclay
- L. Moscoso - KM3NeT CEA DSM Dapnia23/06/2005 2
Detection principle
Huge detection volume: km3
Shielded against cosmic rays
p
c=43°
- L. Moscoso - KM3NeT CEA DSM Dapnia23/06/2005 3
Scientific topics
Cosmology/ particle physics–Dark matter
Astronomy–Quasars–Gamma-ray bursts –Microquasars–Pulsars–SNR
The Mediterranean is well suited to observe the Galactic Centre.
Results from H.E.S.S. are encouraging.
- L. Moscoso - KM3NeT CEA DSM Dapnia23/06/2005 4
HESS observations - Energy spectrum
dF/dE = F0 E- with = 2.2 F0 = 1.1×10-4 m-2 s-1 GeV-1
Km3 detector sensitive to a neutrino flux = gamma-ray flux
Aharonian et al., A&A 425, L13-L17 (2004)
Neutrinos from the GC
- L. Moscoso - KM3NeT CEA DSM Dapnia23/06/2005 5
HESS scan of the Galactic centre
- L. Moscoso - KM3NeT CEA DSM Dapnia23/06/2005 6
Possible combined observations
•Neutrinos from galactic centre detectable in KM3NeT in a few weeks to years (Crocker, Melia, Volkas, Astrophys. J. 622 (2005) L37-40);
•Other HESS observations like RX J1713.7-3946 and PSR B1509- 58 in the GC proximity are promising;
•Integral and Swift are flying. Swift has reported 42 GRB in 6 months. Hopefully new space detectors in 2010-2020
- L. Moscoso - KM3NeT CEA DSM Dapnia23/06/2005 7
Nemo Phase 1
Shore station
2.5 km e.o. Cable with double steel shield
21 km e.o. Cable with single steel shield
J BUJ
J
5 km e.o. cable
Geoseismic station SN-1 (INGV)
5 km e.o. cable
10 optical fibres standard ITU- T G-652 6 electrical conductors 4 mm2
- L. Moscoso - KM3NeT CEA DSM Dapnia23/06/2005 8
Nestor prototype resultsNestor prototype results
Recently published:
G. Aggouras et al. Astropart. Phys.
23 (2005) 377
Zenith angle distribution
- L. Moscoso - KM3NeT CEA DSM Dapnia23/06/2005 9
Antares: MILOM & Line 0
MILOM
Final version of the electronics
Line 0 – Cable test
Almost a complete line (23 storeys)
No electronics
Study optical fibre transmission
Autonomous recording devices (Tinytags) and measurements from the shore (master electro-optical and interlink cables)
No water leaks in electronics containers
Successful deployment-recovery-check-deployment-connection-recovery
Good and constant conductivity and insulation
Optical transmission losses at a number of locations (in the containers)
- L. Moscoso - KM3NeT CEA DSM Dapnia23/06/2005 10
Antares: The Junction Box
JB stable since 30 months.
- L. Moscoso - KM3NeT CEA DSM Dapnia23/06/2005 11
Antares MILOM: Timing resolution
0.75ns for one PMT 0.75/2
0.5ns
Will allow a 0.2° pointing resolution
- L. Moscoso - KM3NeT CEA DSM Dapnia23/06/2005 12
Antares-MILOM: ARS responses
Charge distribution (baseline subtracted)
Single photo-electron peak
Single pe signal wave-form
640MHz sampling
Main clock
- L. Moscoso - KM3NeT CEA DSM Dapnia23/06/2005 13
KM3NeT Design Study Participants
• Cyprus: Univ. Cyprus
• France: CEA/Saclay, CNRS/IN2P3 (CPP Marseille, IreS Strasbourg), IFREMER
• Germany: Univ. Erlangen, Univ. Kiel
• Greece: HCMR, Hellenic Open Univ., NCSR Democritos, NOA/Nestor, Univ. Athens
• Italy: CNR/ISMAR, INFN (Univs. Bari, Bologna, Catania, Genova, Messina, Pisa, Roma-1, LNS Catania, LNF Frascati), INGV, Tecnomare SpA
• Netherlands: NIKHEF/FOM
• Spain: IFIC/CSIC Valencia, Univ. Valencia, UP Valencia
• UK: Univ. Aberdeen, Univ. Leeds, Univ. Liverpool, John Moores Univ. Liverpool, Univ. Sheffield
Particle/Astroparticle institutes (17)
Sea science/technology institutes (7)
Coordinator
- L. Moscoso - KM3NeT CEA DSM Dapnia23/06/2005 14
KM3NeT Design Study: Resources
• Suggested overall budget of the Design Study: 24 M€ (mainly personnel, but also equipment, consumables, travel etc.).
• Amount requested from EU: 10 M€;
• Estimated overall labor power: ~3500 FTEMs(FTEM = full-time equivalent person month) → 100 persons working full-time over 3 years!
Substantial resources (labor power) additional to those available in the current
pilot projects will be required !
- L. Moscoso - KM3NeT CEA DSM Dapnia23/06/2005 15
The KM3NeT Design Study: Milestones
•Proposal submission 04.03.2004.•Evaluation report received June 2004 (overall mark: 88%).•Unofficial but reliable message (Sept. 2004):
The KM3NeT Design Study will be funded ! •Currently waiting for EU call to negotiation.
Negotiations expected between summer and end 2005•KM3NeT in the ESFRI “List of opportunities”•Strong support is asked to the funding agencies
- L. Moscoso - KM3NeT CEA DSM Dapnia23/06/2005 16
KM3NeT Consortium
Organizational structure (phase 1):
– Negotiation Preparation Group (NPG).Task: preparation of the consortium agreement
– Major legislative body: General Assembly;One representative per institute;Simple set of rules for phase 1 worked out by NPG.Task: Approval of all documents, commitments, ...
– Coordinator: U. Katz confirmed. In permanent contact with Brussels.
– WP responsibles: named by “Leading Institutes”Task: establish communication between WP partners,collect info., contact persons for NPG, WP summaries
- L. Moscoso - KM3NeT CEA DSM Dapnia23/06/2005 17
Working packages
Task Descriptive title Leading participant
WP1 Management of the Design Study Univ-Erlangen (D)
WP2 Astro-particle physics IN2P3 (F)
WP3 Physics analysis Hellenic Open Univ. (Gr)
WP4 System and product engineering Saclay (F)
WP5 Information technology FOM (NL)
WP6 Shore and deep-sea infrastructure INFN (I)
WP7 Sea surface infrastructure National Observatory of Athens/Nestor (Gr)
WP8 Risk assessment and QA INFN (I)
WP9 Resource exploration NCSR Democritos (Gr)
WP10 Associated science Univ-Aberdeen (UK)
- L. Moscoso - KM3NeT CEA DSM Dapnia23/06/2005 18
24/25 Feb. 2005: First meeting of NPG;
1 March 2005: Nomination of all WP coordinators approval by GA;
14-15 June 2005: Second meeting of NPG;
End June 2005: Guideline for WP coordinators;
5 Sept. 2005: First common meeting of NPG and WP coordinators;
(few pages, detailing plans, resources, ...);
8-11 Nov. 2005: Second VLVT workshop, Catania.
Time line
- L. Moscoso - KM3NeT CEA DSM Dapnia23/06/2005 19
Conclusions (1)
•HE neutrino observation is essential to achieve multi-
messenger and multi-wavelength astronomy;
•An equipped volume of at least one km3 is necessary;
•The Mediterranean Sea allows us to observe the
Galactic Centre;
•FP6 Design Study will combine the efforts of the three
pilot projects Antares, Nemo, Nestor;
- L. Moscoso - KM3NeT CEA DSM Dapnia23/06/2005 20
Conclusions (2)
The balance of these last few months is very positive:– Scientific point of view
• The recent HESS observations in the TeV range are very encouraging;
– Political point of view• ESFRI adds KM3NeT to “List of opportunities”;• The funding agencies show their intention to
reinforce their support to the pilot projects;• New institutes (not present in the 3 pilot
projects) have joined KM3NeT;– Technical point of view
• The recent results with the new Antares prototypes are an important progress.