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Created
July 15, 2021 09:15
by
Researcher Metadata Database
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Added
2011.01100.pdf
July 15, 2021 09:15
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Researcher Metadata Database
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Added Creator Benjamin D. Donovan
July 15, 2021 09:15
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Researcher Metadata Database
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Added Creator Randall Lee McEntaffer
July 15, 2021 09:15
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Researcher Metadata Database
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Added Creator Casey T. Deroo
July 15, 2021 09:15
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Researcher Metadata Database
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Added Creator James Henry Tutt
July 15, 2021 09:15
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Researcher Metadata Database
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Added Creator Fabien Grise
July 15, 2021 09:15
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Researcher Metadata Database
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Added Creator Chad M. Eichfeld
July 15, 2021 09:15
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Researcher Metadata Database
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Added Creator Oren Zaak Gall
July 15, 2021 09:15
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Researcher Metadata Database
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Added Creator Vadim Burwitz
July 15, 2021 09:15
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Researcher Metadata Database
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Added Creator Gisela Hartner
July 15, 2021 09:15
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Researcher Metadata Database
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Added Creator Carlo Pelliciari
July 15, 2021 09:15
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Researcher Metadata Database
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Added Creator Marlis Madeleine La Caria
July 15, 2021 09:15
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Researcher Metadata Database
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Published
July 15, 2021 09:15
by
Researcher Metadata Database
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Updated
February 28, 2022 22:44
by
[unknown user]
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Updated
March 22, 2022 16:17
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[unknown user]
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Updated
April 04, 2024 10:21
by
[unknown user]
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May 28, 2024 14:54
by
avs5190
Keyword
- Performance testing, Reflection grating, Off-plane mount, X-ray spectroscopy, Suborbital rocket
Description
<p>The soft X-ray grating spectrometer on board the Off-plane Grating Rocket Experiment (OGRE) hopes to achieve the highest resolution soft X-ray spectrum of an astrophysical object when it is launched via suborbital rocket. Paramount to the success of the spectrometer are the performance of the >250 reflection gratings populating its reflection grating assembly. To test current grating fabrication capabilities, a grating prototype for the payload was fabricated via electron-beam lithography at The Pennsylvania State University's Materials Research Institute and was subsequently tested for performance at Max Planck Institute for Extraterrestrial Physics' PANTER X-ray Test Facility. Bayesian modeling of the resulting data via Markov chain Monte Carlo (MCMC) sampling indicated that the grating achieved the OGRE single-grating resolution requirement of Rg(λ/λ)>4500 at the 94% confidence level. The resulting Rg posterior probability distribution suggests that this confidence level is likely a conservative estimate though, since only a finite Rg parameter space was sampled and the model could not constrain the upper bound of Rg to less than infinity. Raytrace simulations of the tested system found that the observed data can be reproduced with a grating performing at Rg=∞. It is therefore postulated that the behavior of the obtained Rg posterior probability distribution can be explained by a finite measurement limit of the system and not a finite limit on Rg. Implications of these results and improvements to the test setup are discussed. </p>
- <p>The soft X-ray grating spectrometer on board the Off-plane Grating Rocket Experiment (OGRE) hopes to achieve the highest resolution soft X-ray spectrum of an astrophysical object when it is launched via suborbital rocket. Paramount to the success of the spectrometer are the performance of the >250 reflection gratings populating its reflection grating assembly. To test current grating fabrication capabilities, a grating prototype for the payload was fabricated via electron-beam lithography at The Pennsylvania State University's Materials Research Institute and was subsequently tested for performance at Max Planck Institute for Extraterrestrial Physics' PANTER X-ray Test Facility. Bayesian modeling of the resulting data via Markov chain Monte Carlo (MCMC) sampling indicated that the grating achieved the OGRE single-grating resolution requirement of Rg(λ/Δλ)>4500 at the 94% confidence level. The resulting Rg posterior probability distribution suggests that this confidence level is likely a conservative estimate though, since only a finite Rg parameter space was sampled and the model could not constrain the upper bound of Rg to less than infinity. Raytrace simulations of the tested system found that the observed data can be reproduced with a grating performing at Rg=∞. It is therefore postulated that the behavior of the obtained Rg posterior probability distribution can be explained by a finite measurement limit of the system and not a finite limit on Rg. Implications of these results and improvements to the test setup are discussed. </p>
Publication Date
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May 28, 2024 14:55
by
avs5190
Randall Lee McEntaffer
- Randall L. McEntaffer
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May 28, 2024 14:55
by
avs5190
James Henry Tutt
- James H. Tutt
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May 28, 2024 14:55
by
avs5190
Fabien Grise
- Fabien Grisé
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May 28, 2024 14:55
by
avs5190
Oren Zaak Gall
- Oren Z. Gall
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May 28, 2024 14:55
by
avs5190
Marlis Madeleine La Caria
- Marlis-Madeleine La Caria