Sticking coefficient of nitrogen on solid N2 at low temperatures |
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| Authors: | SHM Deng DB Cassidy AP Mills Jr |
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| Institution: | a Department of Physics and Astronomy, University of California, Riverside, California 92521-0413, USA
b First Point Scientific Inc., Agoura Hills, California 91301, USA |
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| Abstract: | The sticking coefficient of nitrogen gas on a thick solid nitrogen film on a copper cold finger was studied at low temperature. For surface temperatures of about 12 K the sticking coefficient is measured to be 99.0 ± 0.6%. Our result implies that it will be possible to make a intense and high brightness slow positron source starting from a small diameter deposit of the gaseous positron emitter 13N2 produced in the reaction 12C(d,n)13N. |
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| Keywords: | 67 70 +n 68 43 &minus h |
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