An atomic beam polarimeter to measure the nuclear polarization in the HERMES gaseous polarized hydrogen and deuterium target

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.

doi:10.1016/S0168-9002(01)01738-7

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.

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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. mostra contributor esterni nascondi contributor esterni
Data di pubblicazione:	2002
Rivista:	NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH. SECTION A, ACCELERATORS, SPECTROMETERS, DETECTORS AND ASSOCIATED EQUIPMENT
Abstract:	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.
Handle:	http://hdl.handle.net/11392/516627
Appare nelle tipologie:	03.1 Articolo su rivista

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