monitoring of fhep
DESCRIPTION
Monitoring of FHEP. Teacher Research Internship Fermilab – Summer 2011. Summer Internship. My nine week internship: Labview program for FHEPstress monitoring Hardware testing for stress gauge monitoring Installation of strain gauges on FHEP Ultrasonic gage projects. - PowerPoint PPT PresentationTRANSCRIPT
Monitoring of FHEPMonitoring of FHEP
Teacher Research Internship Fermilab – Summer 2011
Summer InternshipSummer Internship
My nine week internship:My nine week internship: Labview program for FHEPLabview program for FHEP
stress monitoringstress monitoring Hardware testing for stress gauge Hardware testing for stress gauge
monitoringmonitoring Installation of strain gauges on Installation of strain gauges on
FHEPFHEP Ultrasonic gage projectsUltrasonic gage projects
NOvA Neutrino ExperimentNOvA Neutrino Experiment
The NOvA neutrino experiment will The NOvA neutrino experiment will start studying the properties of start studying the properties of neutrinos starting 2013. neutrinos starting 2013.
Construction is scheduled to be Construction is scheduled to be complete in January 2014, and the complete in January 2014, and the first run will last six years.first run will last six years.
NOvA Neutrino ExperimentNOvA Neutrino Experiment
BackgroundBackground There are three types of neutrinos: There are three types of neutrinos:
muon, electron and tau muon, electron and tau neutrinos neutrinos Scientist have observed muon Scientist have observed muon
neutrinos oscillate into tau neutrinos oscillate into tau neutrinos. neutrinos. However, scientist have not However, scientist have not observed muon neutrinos observed muon neutrinos oscillating into electron neutrinososcillating into electron neutrinos..
NOvA Neutrino ExperimentNOvA Neutrino Experiment Goals of the experiment:Goals of the experiment:
Observe the oscillation of muon Observe the oscillation of muon neutrinos to electron neutrinosneutrinos to electron neutrinos
Source: Lawrence Berkeley National Laboratory
NOvA Neutrino ExperimentNOvA Neutrino Experiment
Discover the order of neutrino Discover the order of neutrino masses: Which one is the masses: Which one is the heaviest? heaviest? Which is the lightest?Which is the lightest?
Discover the symmetry between Discover the symmetry between matter and antimattermatter and antimatter
Source: Jefferson Lab's web server
NOvA Neutrino ExperimentNOvA Neutrino Experiment Neutrinos normally do not interact Neutrinos normally do not interact
with other particleswith other particles A beam of neutrinos will be A beam of neutrinos will be
generated from the NuMI neutrino generated from the NuMI neutrino beambeam
The neutrinos will travel straight The neutrinos will travel straight through the Earth since they rarely through the Earth since they rarely interact with other particles. interact with other particles.
Scientists will use statistics to Scientists will use statistics to determine if the muon neutrinos are determine if the muon neutrinos are oscillating into electron neutrinos.oscillating into electron neutrinos.
NOvA Neutrino ExperimentNOvA Neutrino Experiment The near detector should detect The near detector should detect
mostly muon neutrinos and only a mostly muon neutrinos and only a few electron neutrinos. few electron neutrinos.
If the far detector detects more If the far detector detects more electron neutrinos, then it can be electron neutrinos, then it can be concluded that some of the muon concluded that some of the muon neutrinos have become electron neutrinos have become electron neutrinos during the 500 mile trip to neutrinos during the 500 mile trip to Minnesota. (The neutrinos make this Minnesota. (The neutrinos make this trip in 3 milliseconds).trip in 3 milliseconds).
Source: NOvANOvA documents
NOvA Neutrino ExperimentNOvA Neutrino Experiment
The detectors are constructed of highly reflective PVC cells filled with liquid scintillator.scintillator.
Source: NOvANOvA documents
NOvA Neutrino ExperimentNOvA Neutrino Experiment The charged particles produced by
the neutrino interaction inside the detector will cause the liquid scintillator to produce light that is captured by optical fibers and carried to light-sensitive detectors.
NOvA Neutrino ExperimentNOvA Neutrino Experiment
The near detector: 200 ton detector The near detector: 200 ton detector in the NuMI Service Buildingin the NuMI Service Building
NOvA Neutrino ExperimentNOvA Neutrino Experiment The far detector is 15,000 ton will e The far detector is 15,000 ton will e
located in Ash River, Minnesota.located in Ash River, Minnesota.
Source: NOvANOvA documents
NOvA Neutrino ExperimentNOvA Neutrino Experiment
FHEP, Full Height Engineering FHEP, Full Height Engineering Prototype of the far detector. Will be Prototype of the far detector. Will be located in the CDF building in in located in the CDF building in in August 2011.August 2011.
FHEPFHEP Stress MonitoringStress Monitoring The liquid scintillator will cause the The liquid scintillator will cause the
PVC cells to stretch especially near PVC cells to stretch especially near the bottom of the detector.the bottom of the detector.
Stress will linearly increase from the top of the block to the bottom of the detector.
Most of the stress is in the range of 300 psi with height below 100“ with the largest amount of stress at approximately 30 “.
strain range is about 1000 micro-strain (at E=0.3mpsi, 6month) and will increase to 4000 micron-strain at 20 years (E=0.07mpsi,20year
Source: Ting MiaoTing Miao
Labview Program for FHEPLabview Program for FHEPStress MonitoringStress Monitoring
Used previous Labview knowledge, Used previous Labview knowledge, National Instruments discussion National Instruments discussion forums, Trial and Error, and Geoffrey forums, Trial and Error, and Geoffrey SchmitSchmit
An ongoing process………An ongoing process………
Labview Program 1 Labview Program 1
Labview Program 2Labview Program 2
Labview Program 3Labview Program 3After numerous changes – the current program not yet complete
Top half of the program
Bottom portion of program for strain gauge graphs and indicators
Front panel of program
Hardware Testing for Stress Hardware Testing for Stress Gauge MonitoringGauge Monitoring
15 National Instruments SG-140 15 National Instruments SG-140 Strain Gauge moduleStrain Gauge module
114 channels114 channels 1 National Instrument RTD-124 1 National Instrument RTD-124
Temperature moduleTemperature module
8 channels8 channels
Hardware Testing for Stress Hardware Testing for Stress Gauge MonitoringGauge Monitoring
Unstable connections of module to Unstable connections of module to strain gaugestrain gauge
Hardware Testing for Stress Hardware Testing for Stress Gauge MonitoringGauge Monitoring
Solutions – Use of gold connectors Solutions – Use of gold connectors with pin and socket connectorswith pin and socket connectors
Hardware Testing for Stress Hardware Testing for Stress Gauge MonitoringGauge Monitoring
Problem – 114 channels with Problem – 114 channels with different at rest (no stress) readingsdifferent at rest (no stress) readings
Hardware Testing for Stress Hardware Testing for Stress Gauge MonitoringGauge Monitoring
Solution:Solution:
Null Correction after numerous Null Correction after numerous test and contacting NI supporttest and contacting NI support
Y = k∆T + b
Slope depended on type of strain gauge and temperature
Different for each channel
(120 channels) and temperature dependent
Installation of strain gauges Installation of strain gauges on FHEPon FHEP
Researched epoxy and coating to Researched epoxy and coating to protect strain gaugesprotect strain gauges
M Bond AE-10M Bond AE-10 Researched coating for Stress Researched coating for Stress
gauges to protect them from gauges to protect them from chemicals, environmental, chemicals, environmental,
and mechanical issuesand mechanical issues
What I will take back to the classroom
1. The standard model of the atom2. The opportunities the students
have in the science world and for local internships
3. The process of science – a. More inquiry labsb. More open ended problem solving
Thank You
Mentor: Ting Miao
Guest Scientist: Nickolay Luzhetskiy
TRAC Program Coordinators: Harry Cheung & Bjoern Penning