Construction Update 1 GlueX Collaboration Meeting JLab Oct 46 2012 J M c Intyre A Barnes R Jones 2 Outline Contract Status QA plan construction plan Preparations for construction ID: 369656
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Slide1
Tagger Microscope
Construction Update
1
GlueX Collaboration MeetingJLab, Oct. 4-6, 2012
J. M
c
Intyre, A. Barnes, R. JonesSlide2
2
OutlineContract Status
Q.A. planconstruction plan
Preparations for constructionpopulating the construction spaceMicroscope electronicsadaptation for 50 micron pixel SiPMsscintillation yield with cosmic raysGlueX Collaboration Meeting, JLab
October 4-6,
2012Slide3
3
Contract StatusConstruction Plan
Draft – Sept. 2012~ 50 page document
Detailed instructions for constructionCurrently revising based on feedbackCopy location:https://docs.google.com/document/d/15OreBfdhb5mdpdXz6KMTVQt8ZWMU-4OV9i8Y6vp97Ms/editQuality Assurance & Acceptance Test PlanDraft – Sept. 2012
Currently revising based on feedback
Copy location:https://docs.google.com/document/d/1JL40gx7tPDDFu4aSiad3fTemAp0yiVBPI6D8FB5zb6o/edit
GlueX Collaboration Meeting, JLab
October 4-6,
2012Slide4
4
Construction StatusContract timeline
Tagger Microscopet0 - October 2012 ???
GlueX Collaboration Meeting, JLabOctober 4-6, 2012Slide5
5
Construction StatusContract timeline
Active Collimator
GlueX Collaboration Meeting, JLabOctober 4-6, 2012Slide6
6
Preparations for Construction
After
Before
GlueX Collaboration Meeting, JLab
October 4-6,
2012Slide7
7
Populating the Construction Area
Fiber Cutting Station
GlueX Collaboration Meeting, JLab
October 4-6,
2012Slide8
8
Populating the Construction Area
Fiber Splicing Station
GlueX Collaboration Meeting, JLab
October 4-6,
2012Slide9
9
Populating the Construction Area
Heat Treating Fibers
GlueX Collaboration Meeting, JLabOctober 4-6,
2012Slide10
10
Populating the Construction AreaHeat Treating Fibers
GlueX Collaboration Meeting, JLab
October 4-6,
2012Slide11
11
Populating the Construction Area
Heat Treating Fibers
GlueX Collaboration Meeting, JLab
October 4-6,
2012Slide12
12
Populating the Construction Area
Fiber Testing Station (inside a clean room)
Allows for testing of:Single fibersBundled fibersCooling unit for the electronics’ enclosure
Dark Box
(main frame)
GlueX Collaboration Meeting, JLab
October 4-6,
2012Slide13
13
Populating the Construction Area
Staging Areas &Work Stations
Bundling TableHeat Treating Station
Fiber Testing Station(Clean Room)
Work Table
(Clean room)
GlueX Collaboration Meeting, JLab
October 4-6,
2012Slide14
14
Populating the Construction Area
Ventilation Unit
GlueX Collaboration Meeting, JLab
October 4-6,
2012Slide15
15
Populating the Construction Area
Additional Infrastructure
Lighting & Outlets
Bundle Storage
GlueX Collaboration Meeting, JLab
October 4-6,
2012Slide16
16
Tagger Microscope ElectronicsExperimental setupCurrent testing bench:
Dark chamberNIM bin and modules
Can be used for all aspects of quality assuranceGlueX Collaboration Meeting, JLabOctober 4-6, 2012
Second testing bench:
New dark chamberJLab FADC
Computer with CODA
Can be used for all aspects of quality assuranceSlide17
17
Tagger Microscope ElectronicsElectronics changesChange from 25 µm to 50 µm SiPM:
Gain ~2.7x larger with 50 µmLowered amplifier gain to compensate
Found 30% power reductionGlueX Collaboration Meeting, JLabOctober 4-6, 2012Differences:Increased 3 resistors while keeping operating voltages the same
Included parallel RC circuit to push low frequency gain ‘bump’ out of the operating range
50
µm
25
µmSlide18
18
Tagger Microscope ElectronicsFuture plans
Engineering update of preamplifier, backplane, and control boardsSubmit design for fabrication and component populationSolder Eurocard connectors and SiPMs in lab
Perform basic board quality testsMeasure output pulse shape, gain, cross-talkRun boards for an extended period of time to burn them inGlueX Collaboration Meeting, JLabOctober 4-6, 2012Slide19
19
Tagger Microscope Scintillation Yield
Bench Tests with Cosmic Rays
(from June mtg, 25 micron pixel SiPM)GlueX Collaboration Meeting, JLabOctober 4-6, 2012
pedestal tail
1pe = 5 channels
adc channels
single fiber readout with 250MHz FADC
trigger on the same channel
only tail of spectrum visible
from cosmic rate integral: median ~16pe
130 pe / axial electron trackSlide20
Tagger Microscope Scintillation Yield
Bench Tests with Cosmic Rays : update
(since June mtg, 50 micron pixel SiPM)
GlueX Collaboration Meeting, JLabOctober 4-6, 2012
trigger
gain is re-balanced at 5chan/pixel
cosmic yield: 30 pe (MP)
300 pe/axial electron track
(specification is 220)
sum column 1
sum column 3
Slide21
21
SummaryQuality assurance & acceptance test plan being revised
Construction plan written and being reviewedInfrastructure needed for construction is ~85% completeOn track for readiness review (previously estimated - 11/2012)
Scintillation yield with 50-micron pixel SiPM’s meets requirementsElectronics prototyping phase is completedConstruction to begin as soon as contract is in placeGlueX Collaboration Meeting, JLabOctober 4-6,
2012Slide22
22
Questions?GlueX Collaboration Meeting, JLab
October 4-6, 2012