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dc.creatorTer Meulen, J. J.en_US
dc.creatorDymanus, A.en_US
dc.date.accessioned2006-06-15T13:26:54Z
dc.date.available2006-06-15T13:26:54Z
dc.date.issued1971en_US
dc.identifier1971-R-9en_US
dc.identifier.urihttp://hdl.handle.net/1811/8801
dc.descriptionAuthor Institution: Department of Physics, University of Nijmegenen_US
dc.description.abstractWe have constructed a beam-maser spectrometer to study the proposed pumping mechanisms of the population inversion of the low-J A-doublet states of OH. The OH-radicals are produced in the reaction: {H}+{N}{O}_{2}\rightarrow{OH}+{NO} The atomic hydrogen is produced in a high frequency discharge in a mixture of $H_{2}$ and $H_{2}O$. The maser was tested by measuring the main transitions of the $^{2}H_{3/2} J = 9/2 A$ doublet. With superheterodyne detection a signal to noise ratio of 50 is obtained at a time constant of 10 sec. The frequencies of the $F = 5\rightarrow F = 5$ and $F^{\prime} = 4 \rightarrow F^{\prime} = 4$ transitions are 23826621.1 $\pm$ 0.2 kHz and 23817615.3 $\pm$ 0.2 kHz, respectively. The satellite transitions $F = 5 \rightarrow F^{\prime} = 4$ and $F = 4 \rightarrow F^{\prime} = 5$ were broadened by the earth magnetic field but could also be detected. Details of the experiment will be given.en_US
dc.format.extent102089 bytes
dc.format.mimetypeimage/jpeg
dc.language.isoEnglishen_US
dc.publisherOhio State Universityen_US
dc.titleTHE DETECTION OF THE A-DOUBLET TRANSITIONS OF OH IN A BEAM MASERen_US
dc.typearticleen_US


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