University of South Carolinaboson.physics.sc.edu/CISNP/workshop/CISNP_Bigongiari.pdf ·...
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Transcript of University of South Carolinaboson.physics.sc.edu/CISNP/workshop/CISNP_Bigongiari.pdf ·...
Physics goals
μ
μ
43°
Reconstruction of μ trajectory (~ ) from time and position of PMT hits
μ
•
Line 11/12 deployed but still unplugged To be plugged in June 2008
Already deployed and connected
~
•
Optical
Beacon for timing
calibration (blue LEDs)
Not all
storeys
Hydrophone RX
Local Control Module
(in a Ti-cylinder)
17” glass sphere
10” PMT Ham. R7081-20 14 stages
Shore Station La Seyne-sur-mer
Mux/ DeMux
Computer farm
100 Mb/s link
SCM
MLCM 2
MLCM 3
MLCM 4
MLCM 5
1 Gb/s link
to shore (MEOC)
JB Line 1
LCM
LCM
LCM
LCM
OM
OM
OM
OM
OM
LCM MLCM 1
40K
40Ca
e-
( decay)
LED OB
μ
Coincidences between signals on adjacent storeys
•
Effective area
Ndet=Aeff Time Flux
μ
μ
MACRO
ANTARES (1y)
ANTARES (3y)
ICECUBE
AMANDA II
• MACRO: Astropart.Phys.
19:1-13,2003.
•Baikal Astropart.
Phys. 25, 140 (2006).
•AMANDA-II (807 d)
Phys.Rev.D76:042008,2007
•IceCube: Astrop. Phys. 20 (2004) 507
•WB= Waxman & Bahcall, PRD59
(1999)
•MPR98, PRD 63
(2001)
• SDSS91: Phys.
Rev. Lett. 66(91)2697
BAIKAL
absorption cut-off mean free path -rays: + 2.7k >1014eV 10 Mpc
proton: p + 2.7k 0 + X >5.1019eV 50 Mpc
neutrinos: + 1.95K Z+X >4.1022eV (40 Gpc)
galactic magnetic deflection
(rad)= L(kpc) Z B(μG)/E(EeV)
(B=2μG, Z=1, L=1kpc)
=12odeg @ 1019eV
p
n
•
•
,,x,t,Q
Clock distribution
START STOP
TDC
START STOP
GPS E/O/E TX
RX
•
•
350 m
180 m 200 m
200 m
100 m
