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EnglishAn atomic beam polarimeter for measurement of the hyperfine population numbers and the absolute polarization of thermal atomic hydrogen (H) and deuterium (D) beams is described. The principle of measurement and the method of calibration are given. The polarimeter measures the 4 (6) relative hyperfine population numbers of a thermal H (D) beam in the region of 1013 atomss−1 to an absolute error of less than 0.01. The polarimeter has been in continuous operation with the internal polarized hydrogen and deuterium gas target used in the HERMES experiment at DESY since 1996.
| Data di pubblicazione: | 2002 | |
| Titolo: | An atomic beam polarimeter to measure the nuclear polarization in the HERMES gaseous polarized hydrogen and deuterium target | |
| Autori: | Baumgarten, C; Braun, B; Court, G; Ciullo, Giuseppe; Ferretti, Paola; Golendukhin, A; Graw, G; Haeberli, W; Henoch, M; Hertenberger, R; Koch, N; Kolster, H; Lenisa, Paolo; Nass, A; Pod'Yachev, Sp; Reggiani, D; Rith, K; Simani, Mc; Steffens, E; Stewart, J; Wise, T. | |
| Rivista: | NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH. SECTION A, ACCELERATORS, SPECTROMETERS, DETECTORS AND ASSOCIATED EQUIPMENT | |
| Keywords: | Polarized targets, Polarimeters, Detection of atomic beams, Spin-polarized hydrogen, Hyperfine interactions | |
| Abstract in inglese: | An atomic beam polarimeter for measurement of the hyperfine population numbers and the absolute polarization of thermal atomic hydrogen (H) and deuterium (D) beams is described. The principle of measurement and the method of calibration are given. The polarimeter measures the 4 (6) relative hyperfine population numbers of a thermal H (D) beam in the region of 1013 atomss−1 to an absolute error of less than 0.01. The polarimeter has been in continuous operation with the internal polarized hydrogen and deuterium gas target used in the HERMES experiment at DESY since 1996. | |
| Digital Object Identifier (DOI): | 10.1016/S0168-9002(01)01738-7 | |
| Handle: | http://hdl.handle.net/11392/516627 | |
| Appare nelle tipologie: | 03.1 Articolo su rivista |
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http://hdl.handle.net/11392/516627
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