Browsing by Author "Rogers, G."

Now showing 1 - 2 of 2
  • Thumbnail Image
    Measurement of isotopic separation of argon with the prototype of the cryogenic distillation plant Aria for dark matter searches
    Aaron, E.; Agnes, P.; Ahmad, I.; Albergo, S.; Albuquerque, I. F. M.; Alexander, T.; Alton, A. K.; Amaudruz, P.; Atzori Corona, M.; Ave, M.; Avetisov, I. C.; Azzolini, O.; Back, H. O.; Balmforth, Z.; Barrado, A.; Barrillon, P.; Basco, A.; Batignani, G.; Bocci, V.; Bonivento, W. M.; Bottino, B.; Boulay, M. G.; Busto, J.; Cadeddu, M.; Caminata, A.; Canci, N.; Capra, A.; Caprioli, S.; Caravati, M.; Cargioli, N.; Carlini, M.; Castello, P.; Cavalcante, P.; Cavuoti, S.; Cebrian, S.; Cela Ruiz, J. M.; Chashin, S.; Chepurnov, A.; Chyhyrynets, E.; Cifarelli, L.; Cintas, D.; Citterio, M.; Cleveland, B.; Cocco, V.; Conde Vilda, E.; Consiglio, L.; Copello, S.; Covone, G.; Czubak, M.; D’Aniello, M.; D’Auria, S.; Da Rocha Rolo, M. D.; Davini, S.; De Cecco, S.; De Guido, G.; De Gruttola, D.; De Pasquale, S.; De Rosa, G.; Dellacasa, G.; Derbin, A. V.; Devoto, A.; Di Capua, F.; Di Noto, L.; Di Stefano, P.; Dolganov, G.; Dordei, F.; Ellingwood, E.; Erjavec, T.; Farenzena, S.; Fernandez Diaz, M.; Fiorillo, G.; Franchini, P.; Franco, D.; Funicello, N.; Gabriele, F.; Gahan, D.; Galbiati, C.; Gallina, G.; Gallus, G.; Garbini, M.; Garcia Abia, P.; Gendotti, A.; Ghiano, C.; Giganti, C.; Giovanetti, G. K.; Goicoechea Casanueva, V.; Gola, A.; Grauso, G.; Grilli di Cortona, G.; Grobov, A.; Gromov, M.; Guan, M.; Guerzoni, M.; Gulino, M.; Guo, C.; Hackett, B. R.; Hallin, A. L.; Hamer, A.; Haranczyk, M.; Hessel, T.; Hill, S.; Horikawa, S.; Hubaut, F.; Hucker, J.; Hugues, T.; Ianni, An.; Ippolito, V.; Jillings, C.; Jois, S.; Kachru, P.; Kemp, A. A.; Kendziora, C. L.; Kimura, M.; Kochanek, I.; Kondo, K.; Korga, G.; Koulosousas, S.; Kubankin, A.; Kuss, M.; Kuźniak, M.; La Commara, M.; Lai, M.; Lami, N.; Le Guirriec, E.; Leason, E.; Leoni, A.; Lidey, L.; Lippi, F.; Lissia, M.; Luzzi, L.; Lychagina, O.; Maccioni, N.; Macfadyen, O.; Machulin, I. N.; Manecki, S.; Manthos, I.; Mapelli, L.; Margotti, A.; Mari, S. M.; Mariani, C.; Maricic, J.; Marini, A.; Martínez, M.; Martoff, C. J.; Mascia, M.; Masoni, A.; Matteucci, G.; Mavrokoridis, K.; Maxia, C.; McDonald, A. B.; Messina, A.; Milincic, R.; Mitra, A.; Moharana, A.; Moioli, S.; Monroe, J.; Moretti, E.; Morrocchi, M.; Mróz, T.; Muratova, V. N.; Muscas, C.; Musico, P.; Nania, R.; Nessi, M.; Nikolopoulos, K.; Nowak, J.; Olchansky, K.; Oleinik, A.; Oleynikov, V.; Organtini, P.; de Solórzano, A. O.; Pagani, L.; Pallavicini, M.; Pandola, L.; Pantic, E.; Paoloni, E.; Paternoster, G.; Pegoraro, P. A.; Pelczar, K.; Pellegrini, L. A.; Pellegrino, C.; Pesudo, V.; Piacentini, S.; Pietrofaccia, L.; Pino, N.; Pocar, A.; Poehlmann, D. M.; Pordes, S.; Pralavorio, P.; Price, D.; Ragusa, F.; Ramachers, Y.; Razeti, M.; Renshaw, A. L.; Rescigno, M.; Retiere, F.; Rignanese, L. P.; Ripoli, C.; Rivetti, A.; Roberts, A.; Roberts, C.; Rode, J.; Rogers, G.; Romero, L.; Rossi, M.; Rubbia, A.; Sabia, M. A.; Sabiu, G. M.; Salomone, P.; Sandford, E.; Sanfilippo, S.; Santone, D.; Santorelli, R.; Savarese, C.; Scapparone, E.; Schillaci, G.; Schukman, F.; Scioli, G.; Simeone, M.; Skensved, P.; Skorokhvatov, M. D.; Smirnov, O.; Smirnova, T.; Smith, B.; Spadoni, F.; Spangenberg, M.; Stefanizzi, R.; Steri, A.; Stornelli, V.; Stracka, S.; Stringer, M.; Sulis, S.; Sung, A.; Suvorov, Y.; Szelc, A. M.; Tartaglia, R.; Taylor, A.; Taylor, J.; Tedesco, S.; Testera, G.; Thieme, K.; Thorpe, T. N.; Tonazzo, A.; Tricomi, A.; Unzhakov, E. V.; Vallivilayil John, T.; Van Uffelen, M.; Viant, T.; Viel, S.; Vogelaar, R. Bruce; Vossebeld, J.; Wada, M.; Walczak, M. B.; Wang, H.; Wang, Y.; Westerdale, S.; Williams, L.; Wingerter-Seez, I.; Wojaczyński, R.; Wojcik, Ma. M.; Wright, T.; Xie, Y.; Yang, C.; Zabihi, A.; Zakhary, P.; Zani, A.; Zichichi, A.; Zuzel, G.; Zykova, M. P. (2023-05-31)
    The Aria cryogenic distillation plant, located in Sardinia, Italy, is a key component of the DarkSide-20k experimental program for WIMP dark matter searches at the INFN Laboratori Nazionali del Gran Sasso, Italy. Aria is designed to purify the argon, extracted from underground wells in Colorado, USA, and used as the DarkSide-20k target material, to detector-grade quality. In this paper, we report the first measurement of argon isotopic separation by distillation with the 26m tall Aria prototype. We discuss the measurement of the operating parameters of the column and the observation of the simultaneous separation of the three stable argon isotopes: 36Ar, 38Ar, and 40Ar. We also provide a detailed comparison of the experimental results with commercial process simulation software. This measurement of isotopic separation of argon is a significant achievement for the project, building on the success of the initial demonstration of isotopic separation of nitrogen using the same equipment in 2019.
  • Thumbnail Image
    Total Gas Saturation Considerations for Recirculating Aquatic Systems
    Rogers, G. (Commercial Fish and Shellfish Technologies Program, Virginia Tech, 2005-06-01)
    Zebrafish (Danio rerio) are now widely used in aquatic research facilities for genetic and vertebrate development studies. Most of these facilities utilize recirculating systems for zebrafish production. Dependable production of high quality fish is of vital concern in these recirculation systems as these fish are valuable and in many cases irreplaceable in terms of their significance to the research being conducted. Water quality is of utmost concern in zebrafish systems. One critical parameter that has received attention in these facilities is that of total gas pressure. Under abnormal conditions, the partial pressures of dissolved gases in the water can be greater than saturation. When this is the case, there is a potential for problems with gas bubble trauma and an increasing chance for secondary microbial infections. This paper discusses total gas supersaturation theory, problems associated with supersaturation, methods of monitoring total gas pressure, and ways that gas bubble problems can be prevented in recirculating aquatic systems.