Superconducting and Normal Specific Heats of a Single Crystal of Niobium

Leupold, H. A.; Boorse, H. A.

doi:10.1103/physrev.134.a1322

Cited by 134 publications

(24 citation statements)

References 18 publications

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“…For the sake of definiteness, consider how large a change is necessary to bring the calculated D(t) of spectrum 1 down to that given in Ref. 24, say, as an arbitrarily chosen example. There are many ways of doing this, but some possibilities can be ruled out from the start.…”

Section: Application Of Functional Derivativesmentioning

confidence: 99%

Thermodynamic properties of superconducting niobium

Daams

Ćarbotte

1980

J Low Temp Phys

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The thermodynamic properties of superconducting Nb are calculated numerically from the solution of the Eliashberg equations on the imaginary axis for several possible electron-phonon spectral densities ae(o)F(o). Comparison with experiment is made in order to see which spectrum gives the best agreement, and functional derivatives with respect to o~2 (o)F(o) are used to estimate how this agreement might be improved by small changes in a2 (o)F(o). Possible gap anisotropy effects are also considered with the help of a simple model anisotropy for the interaction.

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Section: Application Of Functional Derivativesmentioning

confidence: 99%

Thermodynamic properties of superconducting niobium

Daams

Ćarbotte

1980

J Low Temp Phys

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“…We obtain P d ≈ 1 W/cm 2 during time of order τ leading to the energy deposition per unit volume of ∆W/∆V = P d τ / = 3.1 nJ/cm 3 . Taking the specific heat of superconducting Nb at 2K [11] to be c heat = 0.12 mJ/(cm 3 ·K), we obtain for the pulse heating ∆T pulse = (∆W/∆V )/c heat ≤ 0.025 mK.…”

Section: Pulsed Temperature Rise Caused By the Bunch Fieldsmentioning

confidence: 99%

Some wakefield effects in the superconducting RF cavities of LCLS-II

Bane¹,

Romanenko²,

Yakovlev³

2014

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“…For the following comparison of the maximum RF field with theory the value of T c =9.11 K derived from the pulsed measurement will be used. Figure 4 shows the maximum RF field normalized to the thermodynamic critical field B c =199 mT 18,19 as a function of temperature. Here it can be seen that the maximum RF field systematically exceeds B c .…”

Section: Maximum Rf Fieldmentioning

confidence: 99%

Extension of the measurement capabilities of the quadrupole resonator

Junginger

Weingarten

Welsch

2012

Review of Scientific Instruments

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The Quadrupole Resonator, designed to measure the surface resistance of superconducting samples at 400 MHz has been refurbished. The accuracy of its RF-DC compensation measurement technique is tested by an independent method. It is shown that the device enables also measurements at 800 and 1200 MHz and is capable to probe the critical RF magnetic field. The electric and magnetic field configuration of the Quadrupole Resonator are dependent on the excited mode. It is shown how this can be used to distinguish between electric and magnetic losses.

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Superconducting and Normal Specific Heats of a Single Crystal of Niobium

Cited by 134 publications

References 18 publications

Thermodynamic properties of superconducting niobium

Thermodynamic properties of superconducting niobium

Some wakefield effects in the superconducting RF cavities of LCLS-II

Extension of the measurement capabilities of the quadrupole resonator

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