Proceedings of the International School of Physics "Enrico Fermi.", Volume 17N. Zanichelli, 1962 - Nuclear physics |
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Page 44
... considered to super- impose a noise vector at a random angle to the amplitude vector of the signal . Then E2 82 = √n + exp [ id ] | 2 = n + 1 + 2√ñ cos d , where s is a constant such that the total flow 44 C. H. TOWNES.
... considered to super- impose a noise vector at a random angle to the amplitude vector of the signal . Then E2 82 = √n + exp [ id ] | 2 = n + 1 + 2√ñ cos d , where s is a constant such that the total flow 44 C. H. TOWNES.
Page 55
... random phase fluctuation given by ( 50 ) occurs in a time 7. For a longer time t , there are t / r such fluctuations which add in a random fashion , giving a total phase shift of ( 51 ) kT Δε Ρτ V as indicated in Fig . 7b . ( 52 ) Such ...
... random phase fluctuation given by ( 50 ) occurs in a time 7. For a longer time t , there are t / r such fluctuations which add in a random fashion , giving a total phase shift of ( 51 ) kT Δε Ρτ V as indicated in Fig . 7b . ( 52 ) Such ...
Page 56
... random . DERR et al . [ 14 ] have very recently successfully operated a system with Cesium in a buffer gas and by optical pumping obtained maser oscillation at the frequency of the Cs hyperfine structure near 1010 Hz . The power output ...
... random . DERR et al . [ 14 ] have very recently successfully operated a system with Cesium in a buffer gas and by optical pumping obtained maser oscillation at the frequency of the Cs hyperfine structure near 1010 Hz . The power output ...
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absorption coefficient actinide alcalins amplifier atomes atomic beam BROSSEL cavité cellule césium champ magnétique cohérence collisions couplage coupling d'onde DEHMELT détection dipolaire dipole electronic emission energy expériences expérimentales facteur de Landé fonction fonction d'onde frequency gaz tampon given gives ground state H₁ Hence high hyperfine structure interaction isotopes klystron l'absorption l'atome l'état excité l'état fondamental level lower magnetic field maser masers matrice densité matrix elements measured mercure mesure méthode microwave modulation molecules neptunium niveaux noise nuclear number observe observed obtain obtained optical order oscillant oscillator oven photon Phys polarisation pompage optique populations power pression pumping quadrupole quantum radiation radiofréquence raie de résonance rare earth relaxation Rendiconti S.I.F. resonance résonance magnétique result rubidium saturation SHIMODA signal small sodium spectrometer spin nucléaire spins électroniques structure hyperfine système T₁ T₂ température used valeur values wave