Zobrazeno 1 - 10
of 16
pro vyhledávání: '"M. N. Kinnane"'
Publikováno v:
Metrologia. 52:244-250
We describe a simple method for high-precision rotary angle encoder calibration for long-range angular errors. By using a redesigned electronic nulling autocollimator, an optical-polygon artifact is calibrated simultaneously with determining the enco
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::13228af2504b3328dc703c35e6c3875b
https://doi.org/10.1088/0026-1394/52/2/244
https://doi.org/10.1088/0026-1394/52/2/244
Autor:
Endre Takacs, Christopher T. Chantler, Joshua M. Pomeroy, L. F. Smale, Albert Henins, John D. Gillaspy, Joseph N. Tan, Lawrence T. Hudson, B. Radics, M. N. Kinnane, Csilla I. Szabo, J. A. Kimpton
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 580:246-249
A new data acquisition system coupled to a backgammon-type gas proportional counter capable of single-photon counting over a wide range of count rates has been developed and replaces a CAMAC-based system. The new apparatus possesses improved architec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8a6ee6f9f0db15eb457d411bbcc097b5
https://doi.org/10.1016/j.nima.2007.05.093
https://doi.org/10.1016/j.nima.2007.05.093
Publikováno v:
Radiation Physics and Chemistry. 75:1744-1748
The electron beam ion trap has opened the door for experimental physics to perform critical tests of bound state QED in the medium- Z regime. The relatively small uncertainties associated with the theoretical predictions necessitate highly accurate e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4cf4ac0b8871c145db864606a76f0cee
https://doi.org/10.1016/j.radphyschem.2005.09.017
https://doi.org/10.1016/j.radphyschem.2005.09.017
Publikováno v:
Measurement Science and Technology. 16:2280-2286
Two-dimensional backgammon configuration and multiwire gas proportional counters have been in use for decades in the field of x-ray physics for high-precision or high-flux experiments. Systematics inherent to this type of detector lead to image disto
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9d194f8a2369d4cf9006ffb7be381778
https://doi.org/10.1088/0957-0233/16/11/021
https://doi.org/10.1088/0957-0233/16/11/021
Autor:
K. Makonyi, Albert Henins, A T Payne, John D. Gillaspy, Lawrence T. Hudson, J. A. Kimpton, Joshua M. Pomeroy, M. N. Kinnane, Endre Takacs, Christopher T. Chantler, L. F. Smale
Publikováno v:
Physical Review Letters. 110
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::894a96037b1947fc3fcaf4dabfb49179
https://doi.org/10.1103/physrevlett.110.159302
https://doi.org/10.1103/physrevlett.110.159302
Publikováno v:
Physical Review A. 87
Characteristic radiation is used extensively in most high-accuracy x-ray experiments as a standard for calibration, both in laboratory physics and in astrophysics. $K\ensuremath{\alpha}$ and $K\ensuremath{\beta}$ radiations have complex asymmetric st
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1099293055ed9da511e3e27225829666
https://doi.org/10.1103/physreva.87.022512
https://doi.org/10.1103/physreva.87.022512
Autor:
Joseph N. Tan, Endre Takacs, Lawrence T. Hudson, Christopher T. Chantler, L. F. Smale, John D. Gillaspy, Joshua M. Pomeroy, Albert Henins, M. N. Kinnane, A T Payne, K. Makonyi, J. A. Kimpton
Publikováno v:
Physical Review Letters. 109
We report a new test of quantum electrodynamics (QED) for the w (1s2p(1)P(1)→1s(2)(1)S(0)) x-ray resonance line transition energy in heliumlike titanium. This measurement is one of few sensitive to two-electron QED contributions. Systematic errors
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::63c1a72009fe5adc606e05c37854e690
https://doi.org/10.1103/physrevlett.109.153001
https://doi.org/10.1103/physrevlett.109.153001
Autor:
C T, Chantler, M N, Kinnane, J D, Gillaspy, L T, Hudson, A T, Payne, L F, Smale, A, Henins, J M, Pomeroy, J N, Tan, J A, Kimpton, E, Takacs, K, Makonyi
Publikováno v:
Physical review letters. 109(15)
We report a new test of quantum electrodynamics (QED) for the w (1s2p(1)P(1)→1s(2)(1)S(0)) x-ray resonance line transition energy in heliumlike titanium. This measurement is one of few sensitive to two-electron QED contributions. Systematic errors
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::8b4f19715612b5756dd92528ed002468
https://pubmed.ncbi.nlm.nih.gov/25167322
https://pubmed.ncbi.nlm.nih.gov/25167322
Autor:
Joshua M. Pomeroy, Lawrence T. Hudson, Joseph N. Tan, Endre Takacs, M. N. Kinnane, John D. Gillaspy, B. Radics, Christopher T. Chantler, L. F. Smale, Csilla I. Szabo, J. A. Kimpton
We report here our methods and results of measurements of very low-signal X-ray spectra produced by highly charged ions in an electron beam ion trap (EBIT). A megapixel Si charge-coupled device (CCD) camera was used in a direct-detection, single-phot
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::114809ce42c7e62fbd86ed66c53c3e78
Publikováno v:
Physical Review A. 73
In most high-accuracy x-ray experiments, characteristic radiation is used to determine calibration energies or wavelengths. This paper presents experimental results for vanadium $K\ensuremath{\alpha}$, and component refitting for scandium, titanium,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3839e89a2a51d8d2867d5d3cda471a9c
https://doi.org/10.1103/physreva.73.012508
https://doi.org/10.1103/physreva.73.012508