eRD2 Progress Report Magnetic Field Cloak · Gordon Arrowsmith-Kron Dylan Aviles Gabriel Bello...
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Abhay Deshpande, Nils Feege for the Magnetic Cloak Team and collaborators EIC Generic Detector R&D Advisory Committee Meeting Brookhaven National Laboratory, January 26, 2017 eRD2 Progress Report Magnetic Field Cloak
Transcript of eRD2 Progress Report Magnetic Field Cloak · Gordon Arrowsmith-Kron Dylan Aviles Gabriel Bello...
Abhay Deshpande, Nils Feegefor the Magnetic Cloak Team and collaborators
EIC Generic Detector R&D Advisory Committee MeetingBrookhaven National Laboratory, January 26, 2017
eRD2 Progress ReportMagnetic Field Cloak
The people behind the plots
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Stony Brook University (SUNY)
Abhay Deshpande Nils Feege Klaus Dehmelt Thomas K. HemmickRichard LeffertsAndrzej Lipski
High School Students
Ayesha Chhugani
BNL Advisors
Ramesh GuptaBrett ParkerVadim Ptitsyn
RIKEN
Yuji GotoItaru Nakagawa
Alexander AdhyatmanGordon Arrowsmith-KronDylan AvilesGabriel Bello PortmannDaniel BhattiIlana BrombergKyle Capobianco-HoganJae Hyeok ChangBenjamin CoeSean JeffasPlaton KarpovYoungkwang KoThomas KrahulikYakov Kulinich
Raphael Cervantes
Stony Brook University (SUNY) Undergraduate Students
Joshua LaBounty Tiffany LaByerRachel LosaccoShameran MahmudAbmael OliveiraHaley PowersAmiel QuadriRourke SekelskyKartik SharmaVijay ShetnaShawn ThompsonAbraham Tishelman-CharnyHelena Van NieuwenhuizenNoor Ward
Stacy KarthasGraduate Students
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A Magnetic Field Cloak
We have completed…
• beam shielding tests with the BNL Van de Graaff accelerator,
• high-field shielding tests with the MRI magnet at Argonne National Lab,
• high-field cloaking tests with the MRI magnet at Argonne National Lab.
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• beam shielding tests with the BNL Van de Graaff accelerator,
• high-field shielding tests with the MRI magnet at Argonne National Lab,
• high-field cloaking tests with the MRI magnet at Argonne National Lab.
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6Thanks to the staff at the BNL Van de Graaff for their support
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Initial tests with Hall sensors
no shield
with shield
position (mm)-500 0 500
B (m
T)0
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10Field map in y-direction taken at BNL
withshield
no shield
Beam Test with lithium-7 at BNL Van de Graaff
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withshield
no superconductor shield
lines are linear fits to data (excluding )Published in Proc. 2nd
North American Particle Accelerator Conf. (NA-PAC’16)
• beam shielding tests with the BNL Van de Graaff accelerator,
• high-field shielding tests with the MRI magnet at Argonne National Lab,
• high-field cloaking tests with the MRI magnet at Argonne National Lab.
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The 45 Superconductor Layer Cloak Prototype
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11Thanks to the staff at Argonne National Lab for their support
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Test setup with MRI magnet at Argonne National Lab
Shielding MRI Magnet Field
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We shield 99% of 0.45 tesla!
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no time dependence
time dependence
1% leakage
~95% shielding at 0.50 T
• beam shielding tests with the BNL Van de Graaff accelerator,
• high-field shielding tests with the MRI magnet at Argonne National Lab,
• high-field cloaking tests with the MRI magnet at Argonne National Lab.
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Permeabilities of different ferromagnets up to 0.5 T
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‘ideal’ cloak (theory)good cloaking at 40 mT
good cloaking at 450 mT
Cloak reduces front field distortions by 90% at 0.45 T
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~ 10%
x
Cloak reduces front field distortions by 79% at 0.50 T
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~ 21%
x
Magnetic field cloaking ‘across cloak’
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x
Long-range Cloaking Effect
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superconductor only
cloak
x
z
Getting ready for publication
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A magnetic field cloak seems to be a viable option for EIC. We think we understand its design
parameters, fabrication, and limitations.
We have demonstrated magnetic field cloaking with 99% field shielding and 90% reduced field
distortions next to the shield at 0.45 T.
The people behind the plots
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Stony Brook University (SUNY)
Abhay Deshpande Nils Feege Klaus Dehmelt Thomas K. HemmickRichard LeffertsAndrzej Lipski
High School Students
Ayesha Chhugani
BNL Advisors
Ramesh GuptaBrett ParkerVadim Ptitsyn
RIKEN
Yuji GotoItaru Nakagawa
Alexander AdhyatmanGordon Arrowsmith-KronDylan AvilesGabriel Bello PortmannDaniel BhattiIlana BrombergKyle Capobianco-HoganJae Hyeok ChangBenjamin CoeSean JeffasPlaton KarpovYoungkwang KoThomas KrahulikYakov Kulinich
Raphael Cervantes
Stony Brook University (SUNY) Undergraduate Students
Joshua LaBounty Tiffany LaByerRachel LosaccoShameran MahmudAbmael OliveiraHaley PowersAmiel QuadriRourke SekelskyKartik SharmaVijay ShetnaShawn ThompsonAbraham Tishelman-CharnyHelena Van NieuwenhuizenNoor Ward
Stacy KarthasGraduate Students
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ADDITIONAL SLIDES
Shielding MRI Magnet Field
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no time dependence
time dependence
Cloaking at different fields
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x
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Beam Test with oxygen-16 at BNL Van de Graaff
