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Results from a calibration of XENON100 using a source of dissolved radon-220

MPS-Authors
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Bruenner,  S.
Division Prof. Dr. Manfred Lindner, MPI for Nuclear Physics, Max Planck Society;

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Cichon,  Dominick
Division Prof. Dr. Manfred Lindner, MPI for Nuclear Physics, Max Planck Society;

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Hasterok,  C.
Division Prof. Dr. Manfred Lindner, MPI for Nuclear Physics, Max Planck Society;

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Lindner,  M.
Division Prof. Dr. Manfred Lindner, MPI for Nuclear Physics, Max Planck Society;

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引用

Aprile, E., Aalbers, J., Agostini, F., Alfonsi, M., Amaro, F. D., Anthony, M., Arneodo, F., Barrow, P., Baudis, L., Bauermeister, B., Benabderrahmane, M. L., Berger, T., Breur, P. A., Brown, A., Brown, E., Bruenner, S., Bruno, G., Budnik, R., Butikofer, L., Calven, J., Cardoso, J. M. R., Cervantes, M., Cichon, D., Coderre, D., Colijn, A. P., Conrad, J., Cussonneau, J. P., Decowski, M. P., de Perio, P., Di Gangi, P., Di Giovanni, A., Diglio, S., Duchovni, E., Eurin, G., Fei, J., Ferella, A. D., Fieguth, A., Franco, D., Fulgione, W., Rosso, A. G., Galloway, M., Gao, F., Garbini, M., Geis, C., Goetzke, L. W., Grandi, L., Greene, Z., Grignon, C., Hasterok, C., Hogenbirk, E., Itay, R., Kaminsky, B., Kessler, G., Kish, A., Landsman, H., Lang, R. F., Lellouch, D., Levinson, L., Le Calloch, M., Lin, Q., Lindemann, S., Lindner, M., Lopes, J. A. M., Manfredini, A., Maris, I., Undagoitia, T. M., Masbou, J., Massoli, F. V., Masson, D., Mayani, D., Meng, Y., Messina, M., Micheneau, K., Miguez, B., Molinario, A., Murra, M., Naganoma, J., Ni, K., Oberlack, U., Orrigo, S. E. A., Pakarha, P., Pelssers, B., Persiani, R., Piastra, F., Pienaar, J., Piro, M.-.-C., Plante, G., Priel, N., Rauch, L., Reichard, S., Reuter, C., Rizzo, A., Rosendahl, S., Rupp, N., Saldanha, R., dos Santos, J. M. F., Sartorelli, G., Scheibelhut, M., Schindler, S., Schreiner, J., Schumann, M., Lavina, L. S., Selvi, M., Shagin, P., Shockley, E., Silva, M., Simgen, H., v Sivers, M., Stein, A., Thers, D., Tiseni, A., Trinchero, G., Tunnell, C., Upole, N., Wang, H., Wei, Y., Weinheimer, C., Wulf, J., Ye, J., & Zhang, Y. (2017). Results from a calibration of XENON100 using a source of dissolved radon-220. Physical Review D, 95(7):. doi:10.1103/PhysRevD.95.072008.


引用: https://hdl.handle.net/21.11116/0000-0001-2B29-2
要旨
A Rn-220 source is deployed on the XENON100 dark matter detector in order to address the challenges in calibration of tonne-scale liquid noble element detectors. We show that the Pb-212 beta emission can be used for low-energy electronic recoil calibration in searches for dark matter. The isotope spreads throughout the entire active region of the detector, and its activity naturally decays below background level within a week after the source is closed. We find no increase in the activity of the troublesome Rn-222 background after calibration. Alpha emitters are also distributed throughout the detector and facilitate calibration of its response to Rn-222. Using the delayed coincidence of Rn-220-Po-216, we map for the first time the convective motion of particles in the XENON100 detector. Additionally, we make a competitive measurement of the half-life of Po-212, t(1/2) = (293.9 +/- (1.0)(stat) +/- (0.6)(sys)) ns.