| Автор | J H Fremlin |
| Автор | V M Spiers |
| Дата выпуска | 1955-05-01 |
| dc.description | A pinhole camera at the periphery of the cyclotron was used to record neutral products of dissociation of molecular ions accelerated to various radii. From the numbers of particles reaching different parts of a C2 nuclear plate in the camera, the attenuation of the accelerated ions due to collisions with residual air molecules could be deduced. This was compared with the attenuation for H<sub>2</sub>+ ions observed in a similar way. The cross section for dissociation of these by air is known, so the cross sections for other ions could be determined. At a velocity corresponding to 1 MeV per nucleon, the cross sections for D<sup>-</sup> and HeH+ were found to be respectively 7.6×10<sup>-16</sup> cm<sup>2</sup> and 1.0×10<sup>-14</sup> cm<sup>2</sup> with an accuracy to about 30%. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | The Break-up of Negative Ions in the Cyclotron |
| Тип | paper |
| DOI | 10.1088/0370-1298/68/5/306 |
| Print ISSN | 0370-1298 |
| Журнал | Proceedings of the Physical Society. Section A |
| Том | 68 |
| Первая страница | 398 |
| Последняя страница | 403 |
| Аффилиация | J H Fremlin; Physics Department, University of Birmingham |
| Аффилиация | V M Spiers; Physics Department, University of Birmingham |
| Выпуск | 5 |
