ARGON PURIFICATION IN THE LIQUID-PHASE

Cennini, P; Cittolin, S; Dumps, L; Placci, A; Revol, Jp; Rubbia, C; Fortson, L; Picchi, P; Cavanna, F; Mortari, Gp; Verdecchia, M; Cline, D; Muratori, G; Otwinowski, S; Wang, H; Zhou, M; Bettini, A; Casagrande, F; Casoli, P; Centro, S; Dainese, B; Devecchi, C; Pepato, A; Pietropaolo, F; Rossi, P; Suzuki, S; Ventura, S; Benetti, P; Calligarich, E; Dolfini, R; Berzolari, Ag; Mauri, F; Mazzone, L; Montanari, C; Piazzoli, A; Rappoldi, A; Raselli, Gl; Scannicchio, D; Periale, L

doi:10.1016/0168-9002(93)91209-6

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In the R&D programme for the ICARUS experiment, we have developed a practical procedure to purify liquid argon in the liquid phase. Extreme purity is obtained, corresponding to an electronegative impurity concentration below 0.1 ppb of O2 equivalent. This corresponds to an electron lifetime in the range of several milliseconds equivalent to attenuation length of a few metres. The procedure has been tested up to flows of the order of 1000 litres of liquid per hour. The new technique makes it possible to operate very large amounts of ultrapure liquid argon as foreseen for the multikiloton ICARUS experiment at Gran Sasso.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11697/10671

Titolo:	ARGON PURIFICATION IN THE LIQUID-PHASE
Autori interni:	CAVANNA, FLAVIO
Data di pubblicazione:	1993
Rivista:	NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH. SECTION A, ACCELERATORS, SPECTROMETERS, DETECTORS AND ASSOCIATED EQUIPMENT
Abstract:	In the R&D programme for the ICARUS experiment, we have developed a practical procedure to purify liquid argon in the liquid phase. Extreme purity is obtained, corresponding to an electronegative impurity concentration below 0.1 ppb of O2 equivalent. This corresponds to an electron lifetime in the range of several milliseconds equivalent to attenuation length of a few metres. The procedure has been tested up to flows of the order of 1000 litres of liquid per hour. The new technique makes it possible to operate very large amounts of ultrapure liquid argon as foreseen for the multikiloton ICARUS experiment at Gran Sasso.
Handle:	http://hdl.handle.net/11697/10671
Appare nelle tipologie:	1.1 Articolo in rivista

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