| Автор | B Beltrán |
| Автор | J Monroe |
| Автор | N S Oblath |
| Автор | G Prior |
| Автор | K Rielage |
| Автор | R G H Robertson |
| Автор | H Wan Chan Tseung |
| Автор | the SNO Collaboration |
| Дата выпуска | 2008-11-01 |
| dc.description | In the third phase of the Sudbury Neutrino Observatory (SNO) experiment an array of <sup>3</sup>He proportional counters was added deployed in the heavy-water volume of the SNO detector. This Neutral-Current Detection (NCD) Array detected the neutrons from the neutral-current interaction of <sup>8</sup>B solar neutrinos with deuterium. Before we can determine the neutrino flux we must separate the neutron-capture pulses from pulses due to alpha particles and instrumental backgrounds. We have created a unique, detailed simulation of the current pulses from the proportional counters that includes energy straggling, ion drift, electron diffusion, space charge, and electronics effects. We have conducted extensive studies to determine the accuracy of the simulation. In the solar neutrino analysis the NCD Monte Carlo is used to determine the energy spectrum of the alpha background, as well as the applicable systematic effects. In the near future it will be used to fit the data pulses to separate neutron-capture and alpha pulses. With this pulse-shape analysis method the differences between pulse characteristics can be associated directly with the physical mechanisms of track formation and charge motion in the counter gas. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Копирайт | © 2008 IOP Publishing Ltd |
| Название | Monte Carlo for the NCD phase of the Sudbury Neutrino Observatory |
| Тип | paper |
| DOI | 10.1088/1742-6596/136/4/042012 |
| Electronic ISSN | 1742-6596 |
| Print ISSN | 1742-6588 |
| Журнал | Journal of Physics: Conference Series |
| Том | 136 |
| Первая страница | 42012 |
| Последняя страница | 42012 |
| Выпуск | 4 |
