An “active” target for spin physics: polarizing nuclei in plastic scintillators
Tóm tắt
Polarized scintillating targets are now routinely available: protons, deuterons or other nuclei in blocks of scintillating organic polymer, doped with the free radical TEMPO, have been polarized dynamically in a field of 2.5 T in a vertical 3He−4He dilution refrigerator. A 19 mm diameter plastic lightguide carries the scintillation light from the sample in the mixing chamber to a photomultiplier outside the cryostat.
Tài liệu tham khảo
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