rd51 membership application
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Kondo Gnanvo
on behalf of Radiation Detector and Imaging Group
RD51 Membership Application
Radiation Detector & Imaging Group
Thomas Jefferson National Accelerator Facility (TNJAF - Jefferson Lab - JLab)
RD51 Collaboration Meeting – November 17th, 2021
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MPGDs in Hall A: Current experiments
SBS: Proton ArmSuper Bigbite Experimental program: 12 GeV era nucleon form factors
⇨ E12-07-109 (GEp5) : GpE/Gp
M up to Q2=12 GeV2 with liquid hydrogen target
⇨ E12-17-004 (GEn-RP) : GnE/Gn
M up to Q2=4.5 GeV2 polarized deuterium target
⇨ E12-09-019 (GMn): GnM/Gp
M up to Q2=13.5 GeV2 polarized deuterium target.
⇨ E12-09-016 (GEn): GnE/Gn
M up to Q2=10 GeV2 using a polarized 3He target.
⇨ E12-09-018 (SIDIS): Transverse target single spin assymetry in 3He(e,e’h)X
Super Bigbite Spectrometer (SBS) detector package
⇨ Two spectrometers: SBS for proton arm & Bigbite (BB) for electron arm
⇨ Detector re-configurable for each SBS experimental program
⇨ Total of 17 large GEM layers for tracking in both spectrometers ➔ 3 designs
Bigbite Spect. (BB): Electron arm
11 × UVa GEM layer
200 60 cm2
K. Gnanvo et al. Nucl. Instr. Meth. A782 (2015), pp. 77-86.
4 × U/V GEM layer
150 40 cm2
6 × INFN GEM layer
150 40 cm2
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MPGDs in Hall A: Future experiments
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MPGDs in Hall B: CLAS12 Micromegas Vertex Trackers (MVT)
M. Vandenbroucke, MPGD2015 Trieste, Italy, 10/13/2015
❖ Upgrade of the CLAS Experiment at Jefferson lab
❖ Study of the nucleon structure with 11 GeV electron
beam at high luminosity (1035 cm-2s-1)
Micromegas Vertex Tracker :
❖ Improve the track reconstruction in the
vicinity of the target
❖ Reduced volume between the magnet
and the Silicon Vertex Tracker (SVT)
❖ Large curved Micromegas
❖ 5T field
❖ Remote off-detector frontend electronics
❖ Small dead space
❖ High particle rate (30 MHz)
Cylindrical MM layers
MM disc layers
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MPGDs in Hall B: BoNus12 radial TPC (rTPC) - cylindrical GEMs
M. Hattawi: CLAS Collaboration Meeting, Nov 10th - 13th , 2020
Physics motivation
❑ Neutron Structure function at Large xB
❑ Tagged-Proton nDVCS, Fully exclusive nDVCs etc …
Cylindrical GEM rTPC
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MPGDs in Hall B: PRad Large GEMsPhysics motivations
Precision measurement of proton charge
radius using e-p elastic scattering process
PRad experiment Run (Summer 2016)
Hall B
▪ 2 large GEM trackers (120 cm × 55 cm)
▪ Largest GEM in experiment at the time
▪ Excellent position resolution (72 µm)
▪ Improve position resolution > 20 times
▪ Large improvements in Q2 determination
120 c
m
❖ PRad completed in 2016
❖ Proposal for an upgrade PRad-II
PRad
Prad-II
Large µRWELL technology
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S. Stepanyan prototype under tests @UVa
MPGDs in Hall B: Upgrade of CLAS12 Forward Tracker
CLAS12
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MPGDs in Hall D: R&D on GEM Transition Radiation Detector
e/π separation from one layer
https://wiki.bnl.gov/conferences/images/8/83/ERD22_GEMTRD-March2021_v1.pdf
Converting standard GEM tracker into GEM-TRD
▪ Large drift gap (20 - 30 mm) ➔ increase photon
detection efficiency
▪ ArCO2) replaced by Xenon based (XeCO2) ➔
increase photon detection efficiency
▪ Radiator at the entrance window of the detector ➔
created TRD photon
Physics motivation
L. Pentchev (JLab)
GEM-TRD/T prototype
HV1 HV2
GEM-TRD/T principle
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MPGD R&D @ JLab for EIC
eRD108 program
eRD108 program
eRD108 program
eRD22 program
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Radiation Detector & Imaging Group @ JLabheaded by Dr. Drew WeisenbergerPrimary mission:
❖ Explore new methods and technologies in supporting detector development for the experimental nuclear physics basic research program at
Jefferson Lab. The Group also seeks opportunities to apply its resources to more immediate societal needs.
Resources:
❖ Detector Group has a 1300 ft2 laboratory work area available to it exclusively on the Jefferson Lab campus.
❖ Equipment, materials and tools necessary for nuclear physics detector development and testing. These items include:
1. sealed radioactive calibration, sources, digital and analog oscilloscopes, high voltage supplies,
2. dark-boxes for detector and scintillator testing, several computer workstations interfaced to VME based and
3. stand-alone FPGA JLab developed flash analog to digital electronics.
4. The Group has a machine shop, three tabletop 3-D printers and a Voltera printed circuit board printer.
Technical capabilities:
❖ The Group has experience applicable not only to nuclear physics radiation detector development, but also to application spin-offs of the detector
technology with expertise in several areas relevant to radiation imaging detector development, including:
1. Component technologies of pixilated scintillators, position-sensitive photomultiplier tubes, micro channel plates, solid state detectors, silicon
photomultipliers, light guides and micro pattern gas detectors
2. Fast analog and digital detector readout electronics design and construction
3. Software development for real-time computer-controlled data acquisition and Monte Carlo and analytic simulations (GEANT4) and
tomographic image reconstruction for nuclear medicine imaging
Accomplishments:
Jefferson Lab has been awarded over fifty US patents based on inventions developed by Group members.
❖ Their technology has been licensed by several companies: Siemens Medical, Dilon Technologies, Ray Visions Inc and SmartBreast Corporation.
❖ The Group has developed radiation detecting systems for clinical and pre-clinical nuclear medicine (SPECT, PET and X-ray CT), plant biology
research and radiation monitoring in high and low radiation environments.
❖ The Group has collaborations with the University of Virginia, Duke University, Johns Hopkins University and the University of Regina. The Group
also collaborates with other DOE national labs on detector projects.
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Radiation Detector & Imaging Group @ JLab
Members
Drew WeisenbergerGroup Leader
Brian KrossDetector Technical Associate
Eric ChristyDetector Physicist
Carl ZornDetector Physicist
Seung Joon LeeDetector Scientist
Kondo GnanvoDetector Physicist
John McKissonElectronics Engineer
John McKissonSoftware Technical Associate
Wenze XiDetector Scientist
Presently the Group has nine
members (six detector scientists
and three engineers).
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Summary
❖ Jefferson Lab (or JLab) is home to a world class Continuous Electron Beam Accelerator Facility (CEBAF).
❖ CEBAF delivers polarized electron beams to four experimental hall (A,B,C, D) where the research in nucleon structure quark
confinement and physic beyond the Standard Model are carried out
❖ JLab has had an increasing interest in the MPGD technologies for its current and future experiments as well as part of its
contribution to the EIC detector.
❖ The Radiation Detector and Imaging Group at JLab has been involved in detector development and support for the JLab
experimental halls as well as non-nuclear physics application of the spin-off technologies that the group developed.
❖ The group is expanding its expertise in the MPGDs technologies for both nuclear physics applications and beyond
All these are a few reasons why we are interested in joining RD51 Collaboration to contribute to
the development and dissemination of MPGDs and benefit in return from the vast knowledge
experience and expertise of the collaboration
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Back up
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