tyler mikev

T1014
Robert Cooper
L. Garrison, L. Rebenitsch,
R. Tayloe, R. Thornton
October 24, 2011
Physics Motivation
•  n and ν event reconstruction by
by charged particle tracking
•  Neutral current elastic (NCel)
•  Muon-induced neutrons
•  1-100 MeV
•  Cosmogenic & beam related
•  Energy & direction spectra
νµ
N
νµ
Z0
N
n
n
N
N
•  Neutrons important background
for coherent NCel scattering on nuclei
All Experimenters Meeting, FNAL
October 24, 2011
Design Concept
•  Improve tracking capabilities with 3D array
of light collecting fibers
•  Readout high channel
density system with multianode PMT system
•  Reduce cost with custom
built readout DAQ ($70
per channel with PMT)
All Experimenters Meeting, FNAL
October 24, 2011
The SciBath Detector
•  80 L liquid scintillator (LS)
•  88% mineral oil
•  11% pseudocumene
•  1% PPO
•  768 (3-16x16) array
wavelength-shifting fibers
(x,y,z axes)
•  1.5 mm diameter
•  2.5 cm spacing
•  UV → blue
All Experimenters Meeting, FNAL
October 24, 2011
The SciBath Detector
•  Pulsed LED calibration
All Experimenters Meeting, FNAL
October 24, 2011
The SciBath Detector
•  N2 and LS plumbing
All Experimenters Meeting, FNAL
October 24, 2011
The SciBath Detector
•  Electronics readout & PMTs
All Experimenters Meeting, FNAL
October 24, 2011
The SciBath Detector
•  Electronics readout & PMTs
All Experimenters Meeting, FNAL
October 24, 2011
Status – MINOS Near Beam Hall
• 
• 
• 
• 
Shipped: Oct. 3
Safety approval: Oct. 14
Currently monitoring 24/7
Run completion: end of Dec.
All Experimenters Meeting, FNAL
•  5 mrad off-axis
•  Situated near COUPP
(downstream)
October 24, 2011
Status: Deployment
All Experimenters Meeting, FNAL
October 24, 2011
Status: Deployment
All Experimenters Meeting, FNAL
October 24, 2011
Status: Monitoring
•  Dual camera monitoring (plumbing & IRMs)
•  Agilent power supply web controllable
•  IU personnel
•  On-shift 24/7
•  Monitoring DAQ & cameras
•  Control runs
•  Expert on call 24/7
•  Within 30 minutes
•  Underground trained
All Experimenters Meeting, FNAL
October 24, 2011
Status: Monitoring
•  Dual camera monitoring (plumbing & IRMs)
•  Agilent power supply web controllable
•  IU personnel
•  On-shift 24/7
•  Monitoring DAQ & cameras
•  Control runs
•  Expert on call 24/7
•  Within 30 minutes
•  Underground trained
All Experimenters Meeting, FNAL
October 24, 2011
Status: Preliminary Test Results
•  Beam correlated events – first light!
Event Time - Beam Trigger
Counts / 2 ms
100
90
80
70
60
50
40
30
20
10
0
0
All Experimenters Meeting, FNAL
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
Time Difference (s)
October 24, 2011
Contact Us
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• 
• 
• 
• 
PI: Rex Tayloe ([email protected])
Cell: (812) 219-1906
Office: (812) 855-3057
Graduate Student: Lance Garrison ([email protected])
Cell: (573) 999-9409
WH10W: x-3433
Postdoc: Robert Cooper ([email protected])
Cell: (734) 657-2890
Other Group Members on this run of SciBath
•  Graduate Student: Lori Rebenitsch
•  Student Intern: R. Tyler Thornton
Other Contributors to SciBath detector
•  Technical / Engineering: Brandon Kunkler, Shing-Shong Shei, Gerard Vissar
•  Faculty: H.-O. Meyer
•  Former students: Melanie Novak (Gr.), Tyler Mikev (UGr.)
All Experimenters Meeting, FNAL
October 24, 2011
Anticipated Sensitivity (ν events)
•  2 month run time in MINOS near beam hall
(through December, 2011)
•  Anticipated ν event rates at 5 mrad off-axis
Beam Configuration
ν CC Inclusive
(ν CC quasi-elastic) *
ν: Low E
550 (100)
ν: Med E
12000 (1400)
ν : Low E
ν : Med E
200 (30)
4000 (1300)
* Assumes an optimistic 1020 protons on target (~ 2 months)
€
€
All Experimenters Meeting, FNAL
October 24, 2011
Anticipated Sensitivity (n events)
•  Cosmogenic & beam-related, muon-induced n
•  100 m of rock
overburden
⇒ 20 n / day
•  Energy / direction
spectra not well
characterized*
*Mei & Hime, Phys. Rev. D 73 053004 (2006))
All Experimenters Meeting, FNAL
October 24, 2011
Status: Preliminary Test Results
•  Beam structure and response
Counts / 0.4 µ s
Event Time - Beam Trigger
10
9
8
7
6
5
4
3
2
1
0
0.51519
All Experimenters Meeting, FNAL
0.515195
0.5152
0.515205
0.51521
Time Difference (s)
October 24, 2011