Zobrazeno 1 - 10
of 85
pro vyhledávání: '"Joe, P. I."'
Autor:
Kim, Beom Hyun, Lee, Sang-Jun, Huang, H., Lu, D., Hong, S. S., Lee, S., Abbamonte, P., Joe, Y. I., Szypryt, P., Doriese, W. B., Swetz, D. S., Ullom, J. N., Kao, C. -C., Lee, J. -S., Kim, Bongjae
X-ray magnetic circular dichroism (XMCD) and resonant inelastic X-ray scattering with magnetic circular dichroism (RIXS-MCD) provide unparalleled insights into the electronic and magnetic dynamics of complex materials. Yet, their spectra remain chall
Externí odkaz:
http://arxiv.org/abs/2412.07204
Autor:
O'Neil, G. C., Szypryt, P., Takacs, E., Tan, J. N., Buechele, S. W., Naing, A. S., Joe, Y. I., Swetz, D., Schmidt, D. R., Doriese, W. B., Gard, J. D., Reintsema, C. D., Ullom, J. N., Villarrubia, J. S., Ralchenko, Yu.
We use narrow spectral lines from the x-ray spectra of various highlycharged ions to measure low-energy tail-like deviations from a Gaussian responsefunction in a microcalorimter x-ray spectrometer with Au absorbers at energiesfrom 650 eV to 3320 eV.
Externí odkaz:
http://arxiv.org/abs/2005.05395
A principal component analysis (PCA) of clean microcalorimeter pulse records can be a first step beyond statistically optimal linear filtering of pulses towards a fully non-linear analysis. For PCA to be practical on spectrometers with hundreds of se
Externí odkaz:
http://arxiv.org/abs/1911.00423
Autor:
Joe, Y. I., Fang, Y., Lee, S., Sun, S. X. L., de la Peña, G. A., Doriese, W. B., Morgan, K. M., Fowler, J. W., Vale, L. R., Rodolakis, F., McChesney, J. L., Ullom, J. N., Swetz, D. S., Abbamonte, P.
Publikováno v:
Phys. Rev. Applied 13, 034026 (2020)
Resonant soft x-ray scattering (RSXS) is a leading probe of valence band order in materials best known for detecting charge density wave order in the copper-oxide superconductors. One of the biggest limitations on the RSXS technique is the presence o
Externí odkaz:
http://arxiv.org/abs/1907.07864
Autor:
Pappas, C. G., Fowler, J. W., Bennett, D. A., Doriese, W. B., Joe, Y. I., Morgan, K. M., O'Neil, G. C., Ullom, J. N., Swetz, D. S.
Publikováno v:
Pappas, C.G., Fowler, J.W., Bennett, D.A. et al. J Low Temp Phys (2018)
Transition-edge sensor X-ray microcalorimeters are usually calibrated empirically, as the most widely-used calibration metric, optimal filtered pulse height (OFPH), in general has an unknown dependance on photon energy, $E_{\gamma}$. Because the cali
Externí odkaz:
http://arxiv.org/abs/1808.00623
Autor:
Fowler, J. W., Alpert, B. K., Bennett, D. A., Doriese, W. B., Gard, J. D., Hilton, G. C., Hudson, L. T., Joe, Y. -I., Morgan, K. M., O'Neil, G. C., Reintsema, C. D., Schmidt, D. R., Swetz, D. S., Szabo, C. I., Ullom., J. N.
Publikováno v:
Metrologia 54 (2017) 494
We introduce a new technique for determining x-ray fluorescence line energies and widths, and we present measurements made with this technique of 22 x-ray L lines from lanthanide-series elements. The technique uses arrays of transition-edge sensors,
Externí odkaz:
http://arxiv.org/abs/1702.00507
Autor:
Fowler, J. W., Alpert, B. K., Doriese, W. B., Hays-Wehle, J., Joe, Y. -I., Morgan, K. M., O'Neil, G. C., Reintsema, C. D., Schmidt, D. R., Ullom, J. N., Swetz, D. S.
The so-called "optimal filter" analysis of a microcalorimeter's x-ray pulses is statistically optimal only if all pulses have the same shape, regardless of energy. The shapes of pulses from a nonlinear detector can and do depend on the pulse energy,
Externí odkaz:
http://arxiv.org/abs/1611.07856
Autor:
Fowler, J. W., Alpert, B. K., Doriese, W. B., Joe, Y. -I., O'Neil, G. C., Ullom, J. N., Swetz, D. S.
Publikováno v:
J. Low Temperature Phys., Vol 184 (2016), pp 374-381
The analysis of data from x-ray microcalorimeters requires great care; their excellent intrinsic energy resolution cannot usually be achieved in practice without a statistically near-optimal pulse analysis and corrections for important systematic err
Externí odkaz:
http://arxiv.org/abs/1511.03950
Autor:
Fowler, J. W., Alpert, B. K., Doriese, W. B., Fischer, D. A., Jaye, C., Joe, Y. I., O'Neil, G. C., Swetz, D. S., Ullom, J. N.
Transition edge sensor microcalorimeters can measure x-ray and gamma-ray energies with very high energy resolution and high photon-collection efficiency. For this technology to reach its full potential in future x-ray observatories, each sensor must
Externí odkaz:
http://arxiv.org/abs/1503.05989
Autor:
Chen, X. M., Miller, A. J., Nugroho, C., de la Pena, G. A., Joe, Y. I., Kogar, A., Brock, J. D., Geck, J., MacDougall, G. J., Cooper, S. L., Fradkin, E., Van Harlingen, D. J., Abbamonte, P.
We report temperature-dependent transport and x-ray diffraction measurements of the influence of Ti hole doping on the charge density wave (CDW) in 1T-Ta(1-x)Ti(x)S(2). Confirming past studies, we find that even trace impurities eliminate the low-tem
Externí odkaz:
http://arxiv.org/abs/1411.6604