Proceedings of the International School of Physics "Enrico Fermi.", Volume 17N. Zanichelli, 1962 - Nuclear physics |
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Page 41
... replaced by hy exp [ - hv / kT ] 1- exp [ -hv / kT ] ' as given by PLANCK . ) The energy density per unit length is then AW 2kT Δν , L с and the power AP flowing in each direction is AP = 1 AW 2 L C = kT △ v , which is Nyquist's result ...
... replaced by hy exp [ - hv / kT ] 1- exp [ -hv / kT ] ' as given by PLANCK . ) The energy density per unit length is then AW 2kT Δν , L с and the power AP flowing in each direction is AP = 1 AW 2 L C = kT △ v , which is Nyquist's result ...
Page 55
... replaced by fluctuations due to VPT JAY Resultant - a ) VPZ Resultant b ) Fig . 7. a ) Vector addition of oscillating field in beam - type maser and thermal noise . b ) Ran- dom addition of noise vectors to give change in phase . kT ...
... replaced by fluctuations due to VPT JAY Resultant - a ) VPZ Resultant b ) Fig . 7. a ) Vector addition of oscillating field in beam - type maser and thermal noise . b ) Ran- dom addition of noise vectors to give change in phase . kT ...
Page 57
... replaced the quantity Q which usually appears , and u2 is the square of the total dipole moment rather than a component in a particular direction which is often used . Eq . ( 59 ) shows that fortunately the threshold condition does not ...
... replaced the quantity Q which usually appears , and u2 is the square of the total dipole moment rather than a component in a particular direction which is often used . Eq . ( 59 ) shows that fortunately the threshold condition does not ...
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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