Polarized scintillator targets

The hydrogen nuclei in an organic scintillator have been polarized to more than 80% and the deuterons in its fully deuterated version to 24%. The scintillator, doped with TEMPO, has been polarized dynamically in a field of 2.5 T in a vertical dilution refrigerator in which a plastic lightguide trans...

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Bibliographic Details
Published in:Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Accelerators, spectrometers, detectors and associated equipment, 2000-05, Vol.446 (3), p.592-599
Main Authors: van den Brandt, B, Bunyatova, E.I, Hautle, P, Konter, J.A, Mango, S
Format: Article
Language:English
Subjects:
DNP
Polarized scintillator
Scintillating polarized target
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Summary:The hydrogen nuclei in an organic scintillator have been polarized to more than 80% and the deuterons in its fully deuterated version to 24%. The scintillator, doped with TEMPO, has been polarized dynamically in a field of 2.5 T in a vertical dilution refrigerator in which a plastic lightguide transports the scintillation light from the sample in the mixing chamber to a photomultiplier outside the cryostat. Sizeable solid samples with acceptable optical properties and light output have been prepared and successfully operated as “live” polarized targets in nuclear physics experiments.
ISSN:0168-9002
1872-9576
DOI:10.1016/S0168-9002(99)01277-2