RU2006123271A - METHOD FOR DETERMINING A PERMANENT BOLTZMAN - Google Patents

Claims (1)

A method for determining the Boltzmann constant by measuring physical quantities characterizing the energy state of the substance of the studied objects and functionally related to each other and called the constant by the mathematical equation from which the specified constant is calculated, characterized in that at least two of the studied objects are identical in chemical composition and are identical in chemical composition and physical properties made of acousto-optical material, for example fused silica, with one object being placed in Reda low cryogenic temperatures, and the other - with higher temperatures, are then simultaneously irradiated mentioned objects monochromatic wavelength of laser radiation of, for example, a wavelength which is in the ultraviolet part of the optical spectrum to excite therein phonons with frequency ν _s, more seek equal energies hν _sн and k _н Т _н in an object located at a low temperature, where ν _sn - the frequency of the phonon mode in the element at low temperature; k _n is the known value of the Boltzmann constant; T _n , K - the known value of low temperature; h, J · s - Planck constant, why they vary the frequency ν _sн by changing the irradiation angle θ _{n of an} object located at a low temperature, while the named frequency is measured using a spectrometer, the energy inequality condition for an object located at a high temperature is hν _sв << k _n T _в , where ν _sv is the frequency of the phonon mode in an object at a high temperature; T _in , K is a known value of high temperature, varying the frequency ν _sre changing irradiation θ angle _{in the} object, which is at high temperature, then set equal density energy thermal phonons E _n · dν _SH and E _a · dν _sre where E _n and E _to - the kinetic energy of the phonons in the objects which are at low and high temperatures, respectively; dν _SH and dν _sre - band phonon oscillations in objects at low and high temperatures, respectively, why they vary the frequency ν _sв by changing the angle θ _{in an} object located at a high temperature, and at the same time control the achievement of the named equality by fulfilling the relation ν _s7 / ν _s5 = I _s7 · Λ ₅ / I _s5 · Λ ₅ , where I _SH I and _sre - phonon intensity fluctuations in the objects at low and high temperatures, respectively; Λ ₅ and Λ ₇ - wavelengths of oscillations of phonons in objects, by changing the intensity I _SH and / or I _sre phonon oscillations in the objects using the polarizer, and then measured with a spectrometer frequency ν and ν _{sre SH} wavelengths Λ and Λ _{n in} the formula

calculate the desired value of the Boltzmann constant k _in .