Variation with Temperature of the Energy of Recoil-Free Gamma Rays from Solids

Pound, R. V.; Rebka, G. A.

doi:10.1103/physrevlett.4.274

Cited by 293 publications

(55 citation statements)

References 5 publications

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“…Consider now another situation, when the upper atom (absorber) moves in the laboratory frame with a velocity v = gh/c downwards. Then in the elevator frame it will have zero velocity at the moment of absorption and hence it will be able to absorb the photon resonantly in complete agreement with experiments [4,5]. Obviously, in the elevator frame there is no room for the interpretation of the redshift in terms of a photon losing its energy as it climbs out of the gravitational well.…”

Section: Methodssupporting

confidence: 60%

“…The first laboratory measurement of the gravitational redshift was performed at Harvard in 1960 by Robert Pound and Glenn Rebka [4], [5] (with 10% accuracy) and in 1964 by Pound and Snider [6] (with 1% accuracy). The photons moved in a 22.5-meter tall tower.…”

Section: Methodsmentioning

confidence: 99%

“…A number of ingenious experiments have been performed [4]- [9] to measure various manifestations of this effect. They are discussed in a number of excellent reviews [10] whose main goal is to contrast the predictions of GR with those of various non-standard theories of gravity.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

On the interpretation of the redshift in a static gravitational field

Okun¹,

Selivanov²,

Telegdi³

2000

American Journal of Physics

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The classical phenomenon of the redshift of light in a static gravitational potential, usually called the gravitational redshift, is described in the literature essentially in two ways: on the one hand the phenomenon is explained through the behaviour of clocks which run the faster the higher they are located in the potential, whereas the energy and frequency of the propagating photon do not change with height. The light thus appears to be redshifted relative to the frequency of the clock. On the other hand the phenomenon is alternatively discussed (even in some authoritative texts) in terms of an energy loss of a photon as it overcomes the gravitational attraction of the massive body. This second approach operates with notions such as the "gravitational mass" or the "potential energy" of a photon and we assert that it is misleading. We do not claim to present any original ideas or to give a comprehensive review of the subject, our goal being essentially a pedagogical one.

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Section: Methodssupporting

confidence: 60%

Section: Methodsmentioning

confidence: 99%

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On the interpretation of the redshift in a static gravitational field

Okun¹,

Selivanov²,

Telegdi³

2000

American Journal of Physics

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“…The plot of area ratio versus temperature can be seen in Figure 5, Another observed change in the spectra with the decrease of temperature is the increment of the IS ( Figure 6). This is a result of the temperature dependent second-order Doppler shift contribution to the IS [11]. This effect was observed for all studied nuclei but while for the Fc the IS was increasing over the whole range of temperature, the [Fe(tpy) 2 The QS is more "inert" to the temperature variation ( Figure 7) so that only a minor increment of 0.01 mm/s was observed for Fc but a more pronounced effect of 0.04 mm/s was noticed for [Fe(tpy) 2 ] 2+ .…”

Section: Resultsmentioning

confidence: 99%

Temperature Dependence of 57Fe-Mössbauer Spectra for a Trinuclear System

Sirbu¹

2015

ChemJMold

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“…Here, we want to point out that the reported second order Doppler effect shall inhibit the resonant absorption [16]. Nevertheless, the Lamb-Mössbauer factor of rhodium at room temperature still exists from this extraordinary observation.…”

mentioning

confidence: 89%

Generation of long-lived isomeric states via bremsstrahlung irradiation

et al. 2006

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A method to generate long-lived isomeric states effectively for Mössbauer applications is reported. We demonstrate that this method is better and easier to provide highly sensitive Mössbauer effect of long-lived isomers (>1ms) such as 103 Rh. Excitation of (γ,γ) process by synchrotron radiation is painful due mainly to their limited linewidth.Instead, (γ,γ') process of bremsstrahlung excitation is applied to create these long-lived Rh have been generated from this method.Among them, 103 Rh is the only one that we have obtained the gravitational effect at room temperature.

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Variation with Temperature of the Energy of Recoil-Free Gamma Rays from Solids

Cited by 293 publications

References 5 publications

On the interpretation of the redshift in a static gravitational field

On the interpretation of the redshift in a static gravitational field

Temperature Dependence of 57Fe-Mössbauer Spectra for a Trinuclear System

Generation of long-lived isomeric states via bremsstrahlung irradiation

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