Year: 1972
Type: article
Abstract: The spectrographs operate at X band. Saturating power is supplied by a magnetron (10W) or a klystron (500 mW). Frequency stabilization uses a 20 kHz modulation scheme (stabilization factor 70, cut-off frequency of the stabilization factor 400 Hz). A power meter and a current controlled attenuator achieve power stabilization. A low level noise figure measurement gives F 1/2 approximately 8 (klystron, with superheterodyne detection) and F 1/2 approximately 2*10 4 (magnetron, with homodyne detection). When using the continuous saturation method, a direct measurement of d chi "(P)/dH is made, with a constant noise figure. Continuous saturation experiments on cubic ZnS:10 -4 Mn 2+ are well interpreted under the assumption of an inhomogeneous broadening and lead to T 1 approximately 2*10 -7 s.
Authors: C Blanc, A Deville, J Herve, G Roger
Institution: Aix-Marseille Université
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W2016554721