MicroBooNEs Beam Timing Improvements 2015-2016: MicroBooNE ( B) - - PowerPoint PPT Presentation

Shutdown 2016:

MicroBooNE’s Beam Timing Improvements

• 2015-2016: MicroBooNE (μB) took it’s first year of data

using the same triggering signals as MiniBooNE

• TCLK $1D + $1F coincidence for BNB
• double check with BNB resistive wall monitor (RWM)
• $A9 for NuMI
• 2015: I asked how precisely we knew neutrino arrival.
• Neutrinos interacting in material upstream of the detector

can eject neutrons which enter μB and mimic important physics signals.

• The main handle on these neutrons will be their late arrival (>

4-22 ns).

• What I learned from folks at AD:
• TCLK has intrinsic 100 ns jitter. (the above study would be

impossible)

• Also learned that $1F may unwittingly get bumped by 1.2 μs!

(μB miss 75% of BNB spill! and not know!)

• Also learned that NuMI has a RWM too…

MI-60 MI-8 MI-10 MI-12 MB

NuMI BNB μB

Tia Miceli - postdoc NMSU

• Replace μB’s NuMI trigger TCLK $A9 to

MIBS $74

• Thanks to M. Kucera for installing MIBS

mezzanine in μB’s I.R.M.

• Replace μB’s BNB trigger TCLK $1D + $1F

to BES gated w/ $1D!

• Thanks to B. Pellico for solution with Tawzer

and CAMAC 055.

• Thanks to G. Vogel and crew for set-up in

MI-12.

• Thanks to G. Brown for orchestrating fiber-

path to μB.

• Deliver NuMI RWM to μB.
• Thanks to P. Adamson for aiding.
• Thanks to G. Brown for orchestrating the

fiber-path.

• Simplified BNB RWM path to μB.

Shutdown 2016:

MicroBooNE’s Beam Timing Improvements

Tia Miceli - postdoc NMSU

Much more precise triggering for MicroBooNE!

$1D + $1F BES + $1D

100 ns from TCLK

At MicroBooNE

• A huge THANK YOU to External Beams, Proton Source, and

Controls Departments for making this improvement possible!

• Help from C. Moore, T. Kobilarcik, and M. Backfish have

enabled MicroBooNE to precisely determine beam timing.

• These improvements are needed for
• Understanding beam-induced neutron backgrounds
• Neutral Current Elastic cross-section measurements
• Kaon decay at rest from NuMI dump
• Capability to reduce cosmogenic backgrounds by tightening trigger

window.

• Improves triggering and timing for μB, and the entire Short

Baseline Neutrino Program

Shutdown 2016:

MicroBooNE’s Beam Timing Improvements

Tia Miceli - postdoc NMSU