Proceedings of the International School of Physics "Enrico Fermi.", Volume 17N. Zanichelli, 1962 - Nuclear physics |
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Page 20
... satisfy the following condition will be focused , ( 4.6 ) { mv2 < W2 = { mv2 E or v , < vc . The total beam flux flowing out from the source is ( 4.7 ) ∞ Να A ̧Nv2dv , dv2 = Ao υπ ' m . = ] -- No where A , is the cross - sectional area ...
... satisfy the following condition will be focused , ( 4.6 ) { mv2 < W2 = { mv2 E or v , < vc . The total beam flux flowing out from the source is ( 4.7 ) ∞ Να A ̧Nv2dv , dv2 = Ao υπ ' m . = ] -- No where A , is the cross - sectional area ...
Page 46
... satisfied for arbitrarily small An . From eq . ( 15 ) one obtains ( 18 ) where q = √qi + på cos ( t + q ) , ( 19 ) or = tg - 1 Po lo By differentiation of eq . ( 19 ) the variation in phase Aq becomes Δφ - qo Apo - Poo q8 + på ( 20 ) ...
... satisfied for arbitrarily small An . From eq . ( 15 ) one obtains ( 18 ) where q = √qi + på cos ( t + q ) , ( 19 ) or = tg - 1 Po lo By differentiation of eq . ( 19 ) the variation in phase Aq becomes Δφ - qo Apo - Poo q8 + på ( 20 ) ...
Page 51
... satisfied during amplification , and the energy builds up exponentially from some small value until the oscillator is quenched , at which time the energy is a measure of the initial signal . Travelling wave solid state maser [ 10 ] ...
... satisfied during amplification , and the energy builds up exponentially from some small value until the oscillator is quenched , at which time the energy is a measure of the initial signal . Travelling wave solid state maser [ 10 ] ...
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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