S. T. P. Boyd |  Tijmen de Haan -  《IEEE Transactions on Applied Superconductivity》 - 2025,35(5 Pt.1) - 1～6 - 共6页

摘要：LiteBIRD is an upcoming JAXA-led mission that aims to measure primordial gravitational waves in the B-mode polarization of the cosmic microwave background. It is set to launch in 2032. The LiteBIRD de...

关键词： Noise |  SQUIDs |  Software as a service |  Transformers |  Coils |  Inductance |  Damping |  Mathematical models |  Detectors |  Capacitance

S. T. P. Boyd |  G.-B. Kim... -  《Journal of Low Temperature Physics》 - 2020,199(3/4) - 681～687 - 共7页 - 被引量：8

摘要：Metallic magnetic calorimeters (MMCs) combine the excellent energy resolution of cryogenic gamma ray detectors with a very small nonlinearity and a reproducible response, owing to their magnetization-...

关键词： Nuclear safeguards |  Metallic magnetic calorimeter |  MMC

G. B. Kim |  S. T. P. Boyd... -  《Journal of Low Temperature Physics》 - 2020,199(3/4) - 1055～1061 - 共7页 - 被引量：3

摘要：We report a new measurement of the 60 keV transition from ~(241)Am. It uses a metallic magnetic calorimeter gamma-ray detector calibrated in the region around 60 keV by four accurately known X-rays an...

关键词： Am-241 |  Gamma-ray spectroscopy |  Nuclear data |  Metallic magnetic calorimeter |  Microcalorimeter

T. de Haan |  A. Suzuki... -  《Journal of Low Temperature Physics》 - 2020,199(3/4) - 754～761 - 共8页 - 被引量：4

摘要：Cosmic microwave background (CMB) measurements are fundamentally limited by photon statistics. Therefore, ground-based CMB observatories have been increasing the number of detectors that are simultane...

关键词： Transition edge sensors |  Frequency-domain multiplexing |  Readout electronics

S. T. P. Boyd |  R. Hummatov... -  《Journal of Low Temperature Physics》 - 2018,193(3/4) - 435～440 - 共6页 - 被引量：8

摘要：Metallic magnetic microcalorimeters (MMCs) achieve energy resolution comparable to transition-edge sensors (TESs) but rely on different measurement physics that may allow MMCs to surpass TESs in some ...

关键词： MMC |  Metallic magnetic calorimeter |  Gamma-ray spectroscopy

Ruslan Hummatov |  John A. Hall... -  《Journal of Low Temperature Physics》 - 2018,193(5/6) - 752～757 - 共6页 - 被引量：8

摘要：We are developing metallic magnetic calorimeters for high-resolution gamma-ray spectroscopy for non-destructive assay of nuclear materials. Absorbers for these higher-energy photons can require substa...

关键词： MMC |  Metallic magnetic calorimeter |  Gamma-ray spectroscopy |  Non-destructive assay |  Thick absorber |  Dry-film photoresist

M. P. Croce |  D. T. Becker... -  《63rd Annual Meeting of the Institute of Nuclear Materials Management: Moving Forward in a Changing World, vol. 2: 63rd Annual Meeting of the Institute of Nuclear Materials Management (INMM 2022), 24-28 July 2022, Online》 -  Annual Meeting of the Institute of Nuclear Materials Management - 2022, - 1027～1032 - 共6页

摘要：The SOFIA microcalorimeter gamma spectrometer is the first instrument of its type successfully demonstrated in a working nuclear facility. Experience in the LANL Plutonium Facility has shown that micr...

Z. Xie |  N. C. Menicucci... -  《Journal of Low Temperature Physics》 - 2005,138(1/2) - 79～84 - 共6页

摘要：We report on the development of a fully time-dependent computer simulation of the ~(4)He normal fluid/superfluid (He-I/He-II) interface dynamics. Both the diverging thermal conductivity and the rapidl...

D. A. Sergatskov |  A. V. Babkin... -  《Journal of Low Temperature Physics》 - 2004,134(1/2) - 517～526 - 共10页

摘要：We report on new transport phenomena observed within a column of ~4He heated from above and close to its transition to superfluidity. In this configuration the helium sample will self-organize to a st...

R. A. M. Lee |  A. R. Chatto... -  《Journal of Low Temperature Physics》 - 2004,134(1/2) - 495～505 - 共11页

摘要：We have made heat capacity measurements of superfluid ~4He at temperatures very close to the lambda point, T_λ, in a constant heat flux, Q, when the helium sample is heated from above. In this configu...