تقرير
Solid oxygen as converter for the production of ultra-cold neutrons
| العنوان: | Solid oxygen as converter for the production of ultra-cold neutrons |
|---|---|
| المؤلفون: | Frei, A., Böhle, F., Bozhanova, R., Gutsmiedl, E., Huber, T., Klenke, J., Paul, S., Wlokka, S. |
| سنة النشر: | 2010 |
| المجموعة: | Nuclear Experiment |
| مصطلحات موضوعية: | Nuclear Experiment |
| الوصف: | We have investigated solid oxygen as a converter material for the production of ultra-cold neutrons. In a first series of experiments the crystal preparation was examined. An optically semi-transparent solid $\alpha$-oxygen crystal has been prepared. In a second series of experiments such a crystal prepared indentically as in the first series of experiments has been exposed to the cold neutron flux of the MEPHISTO beam line of the FRM II. Ultra-cold neutrons produced inside the oxygen crystal have been extracted and the count rates have been measured at different converter temperatures. The results of these measurements give a clear signal of the superthermal UCN production mechanism in $\alpha$-oxygen. The mean free loss length of UCN inside the crystal at a temperature of 5\,K was determined to be in the order of $20\,\mathrm{cm}$. Comment: 4 pages, 3 figures |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/1006.2970 |
| رقم الأكسشن: | edsarx.1006.2970 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |