Feasibility of high-voltage systems for a very long drift in liquid argon TPCs
| Autor: | Horikawa, S., Badertscher, A., Kaufmann, L., Laffranchi, M., Marchionni, A., Messina, M., Natterer, G., Rubbia, A. |
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| Rok vydání: | 2010 |
| Předmět: | |
| Zdroj: | J.Phys.Conf.Ser.308:012027,2011 |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1088/1742-6596/308/1/012027 |
| Popis: | Designs of high-voltage (HV) systems for creating a drift electric field in liquid argon TPCs are reviewed. In ongoing experiments systems capable of approx. 100 kV are realised for a drift field of 0.5-1 kV/cm over a length of up to 1.5 m. Two of them having different approaches are presented: (1) the ICARUS-T600 detector having a system consisting of an external power supply, HV feedthroughs and resistive voltage degraders and (2) the ArDM-1t detector having a cryogenic Greinacher HV multiplier inside the liquid argon volume. For a giant scale liquid argon TPC, a system providing 2 MV may be required to attain a drift length of approx. 20 m. Feasibility of such a system is evaluated by extrapolating the existing designs. Comment: 8 pages, 13 figures, to appear in Proc. of 1st International Workshop towards the Giant Liquid Argon Charge Imaging Experiment (GLA2010), Tsukuba (Japan), March 2010 |
| Databáze: | arXiv |
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