Journal of Astronomical Telescopes Instruments and Systems最新文献_第7页

Rules for optical metrology: Webb primary mirror case study 光学计量规则:韦伯主镜案例研究

3区工程技术

Journal of Astronomical Telescopes Instruments and Systems Pub Date : 2023-11-02 DOI: 10.1117/1.jatis.10.1.011202

H. Philip Stahl

引用次数: 0

Large mission implementation lessons from history 从历史上吸取的教训

3区工程技术

Journal of Astronomical Telescopes Instruments and Systems Pub Date : 2023-11-02 DOI: 10.1117/1.jatis.10.1.011203

H. Philip Stahl

{"title":"Large mission implementation lessons from history","authors":"H. Philip Stahl","doi":"10.1117/1.jatis.10.1.011203","DOIUrl":"https://doi.org/10.1117/1.jatis.10.1.011203","url":null,"abstract":"Pathways to Discovery in Astronomy and Astrophysics for the 2020s has recommended a Great Observatory Maturation Program (GOMaP) to invest in co-maturation of mission concepts and technologies to inform an analysis of alternatives study for an ∼6 m off-axis inscribed telescope. The purpose of this telescope is to sample atmospheric spectra of around 25 potentially habitable exoplanets using ultraviolet, visible, and near-infrared wavelengths; it is planned to launch in the early 2040s with a total cost of less than $11B, including 5 years of operation. A historical review of past missions yields basic programmatic lessons learned to be considered as the community prepares to implement the Decadal Vision. First, technology development is critical for enabling missions. The robustness, breadth, and duration of concept/technology co-maturation is important for mission success. Second, NASA has never “exactly” implemented a Decadal mission as it was recommended. Third, all missions have the same basic technology challenges of mass constraints: mechanical and thermal stability to design, building a space telescope that achieves the required on-orbit performance, and verifying and validating that performance by test and model correlation. Finally, Decadal missions require sustained community support.","PeriodicalId":54342,"journal":{"name":"Journal of Astronomical Telescopes Instruments and Systems","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135973287","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Achieving success in flagship missions: technical and programmatic insights from Ball Aerospace’s legacy 在旗舰任务中取得成功:来自鲍尔航空航天公司遗产的技术和规划见解

IF 2.3 3区工程技术

Journal of Astronomical Telescopes Instruments and Systems Pub Date : 2023-11-01 DOI: 10.1117/1.jatis.10.1.011205

Allison Barto, Paul Lightsey, Tim Schoeneweis, Gregory D. Wirth

引用次数: 0

James Webb Space Telescope optical stability lessons learned for future great observatories 詹姆斯·韦伯太空望远镜光学稳定性的经验教训，为未来伟大的天文台

IF 2.3 3区工程技术

Journal of Astronomical Telescopes Instruments and Systems Pub Date : 2023-11-01 DOI: 10.1117/1.jatis.10.1.011204

Lee D. Feinberg, Michael W. McElwain, Charles W. Bowers, John D. Johnston, Gary E. Mosier, Randy A. Kimble, Joshua S. Levi, Paul Lightsey, J. Scott Knight, Marcel Bluth, Alden S. Jurling, Marie B. Levine, D. Scott Acton, Charles Atkinson, Allison Barto, Matthew D. Bergkoetter, Gregory R. Brady, Larkin Carey, Lester Cohen, Laura Coyle, Bruce H. Dean, Michael Eisenhower, Nicolas Flagey, George F. Hartig, Keith A. Havey, Brian Hicks, Joseph M. Howard, Ritva A. Keski-Kuha, Charles-Philippe Lajoie, Matthew D. Lallo, Gary W. Matthews, Marcio Meléndez, Michael T. Menzel, Sang Park, Marshall D. Perrin, Laurent Pueyo, Lisbeth Quesnel, Paul Reynolds, Jane R. Rigby, Babak N. Saif, Christopher C. Stark, Randal Telfer, Scott C. Texter, Julie M. Van Campen, Begoña Vila, Garrett West, Erin Wolf, Tony L. Whitman, Thomas P. Zielinski

{"title":"James Webb Space Telescope optical stability lessons learned for future great observatories","authors":"Lee D. Feinberg, Michael W. McElwain, Charles W. Bowers, John D. Johnston, Gary E. Mosier, Randy A. Kimble, Joshua S. Levi, Paul Lightsey, J. Scott Knight, Marcel Bluth, Alden S. Jurling, Marie B. Levine, D. Scott Acton, Charles Atkinson, Allison Barto, Matthew D. Bergkoetter, Gregory R. Brady, Larkin Carey, Lester Cohen, Laura Coyle, Bruce H. Dean, Michael Eisenhower, Nicolas Flagey, George F. Hartig, Keith A. Havey, Brian Hicks, Joseph M. Howard, Ritva A. Keski-Kuha, Charles-Philippe Lajoie, Matthew D. Lallo, Gary W. Matthews, Marcio Meléndez, Michael T. Menzel, Sang Park, Marshall D. Perrin, Laurent Pueyo, Lisbeth Quesnel, Paul Reynolds, Jane R. Rigby, Babak N. Saif, Christopher C. Stark, Randal Telfer, Scott C. Texter, Julie M. Van Campen, Begoña Vila, Garrett West, Erin Wolf, Tony L. Whitman, Thomas P. Zielinski","doi":"10.1117/1.jatis.10.1.011204","DOIUrl":"https://doi.org/10.1117/1.jatis.10.1.011204","url":null,"abstract":"The James Webb Space Telescope (JWST) launched on December 25, 2021, and its optical performance in orbit has been even better than predicted pre-flight. The static wavefront error (WFE) is less than half the value specified for the requirement of having diffraction-limited image quality at 2 microns in the NIRCam shortwave channel, enabling the observatory to deliver both sharper images and higher sensitivity than anticipated. In addition to the excellent image quality, the optical stability has also exceeded expectations, both in terms of high-frequency dynamic contributions (which would be perceived as part of “static WFE”) and in terms of drifts over minutes, hours, and days. Stability over long timescales is critical for several important science cases, including exoplanet transit spectroscopy and coronagraphy. JWST’s stability success was achieved through detailed design and testing, with several important lessons learned for future observatories, especially the Habitable Worlds Observatory that is expected to need even higher levels of stability. We review the stability architecture, how it was technologically demonstrated, the ground test results and improvements, the on-orbit results, and the lessons learned.","PeriodicalId":54342,"journal":{"name":"Journal of Astronomical Telescopes Instruments and Systems","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138530656","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Prospects of measuring gamma-ray burst polarization with the Daksha mission 利用达克沙任务测量伽马射线暴偏振的前景

3区工程技术

Journal of Astronomical Telescopes Instruments and Systems Pub Date : 2023-10-31 DOI: 10.1117/1.jatis.9.4.048002

Suman Bala, Sujay Mate, Advait Mehla, Parth Sastry, N. P. S. Mithun, Sourav Palit, Mehul Vijay Chanda, Divita Saraogi, C. S. Vaishnava, Gaurav Waratkar, Varun Bhalerao, Dipankar Bhattacharya, Shriharsh Tendulkar, Santosh Vadawale

{"title":"Prospects of measuring gamma-ray burst polarization with the Daksha mission","authors":"Suman Bala, Sujay Mate, Advait Mehla, Parth Sastry, N. P. S. Mithun, Sourav Palit, Mehul Vijay Chanda, Divita Saraogi, C. S. Vaishnava, Gaurav Waratkar, Varun Bhalerao, Dipankar Bhattacharya, Shriharsh Tendulkar, Santosh Vadawale","doi":"10.1117/1.jatis.9.4.048002","DOIUrl":"https://doi.org/10.1117/1.jatis.9.4.048002","url":null,"abstract":"The proposed Daksha mission comprises of a pair of highly sensitive space telescopes for detecting and characterizing high-energy transients, such as electromagnetic counterparts of gravitational wave events and gamma-ray bursts (GRBs). Along with spectral and timing analysis, Daksha can also undertake polarization studies of these transients, providing data crucial for understanding the source geometry and physical processes governing high-energy emission. Each Daksha satellite will have 340 pixelated cadmium zinc telluride (CZT) detectors arranged in a quasi-hemispherical configuration without any field-of-view collimation (open detectors). These CZT detectors are good polarimeters in the energy range 100 to 400 keV, and their ability to measure polarization has been successfully demonstrated by the cadmium zinc telluride imager onboard AstroSat. Here, we demonstrate the hard x-ray polarization measurement capabilities of Daksha and estimate the polarization measurement sensitivity (in terms of the minimum detectable polarization: MDP) using extensive simulations. We find that Daksha will have MDP of 30% for a fluence threshold of 10 − 4 erg cm − 2 (in 10 to 1000 keV). We estimate that with this sensitivity, if GRBs are highly polarized, Daksha can measure the polarization of about five GRBs per year.","PeriodicalId":54342,"journal":{"name":"Journal of Astronomical Telescopes Instruments and Systems","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135813850","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Line emission mapper cryogenic system design 线发射成像仪低温系统设计

3区工程技术

Journal of Astronomical Telescopes Instruments and Systems Pub Date : 2023-10-26 DOI: 10.1117/1.jatis.9.4.041007

Elizabeth Osborne, Jeffrey R. Olson, Michael Jacoby, Isaac Hayden, Caroline A. Kilbourne, Simon R. Bandler, Xiaoyi Li, Edgar R. Canavan, Joseph S. Adams

引用次数: 1

Wavelet-based image decomposition method for NuSTAR stray light background studies 基于小波的核星杂散光背景图像分解方法研究

3区工程技术

Journal of Astronomical Telescopes Instruments and Systems Pub Date : 2023-10-26 DOI: 10.1117/1.jatis.9.4.048001

Andrey Mukhin, Roman Krivonos, Alexey Vikhlinin, Brian Grefenstette, Kristin Madsen, Daniel Wik

{"title":"Wavelet-based image decomposition method for NuSTAR stray light background studies","authors":"Andrey Mukhin, Roman Krivonos, Alexey Vikhlinin, Brian Grefenstette, Kristin Madsen, Daniel Wik","doi":"10.1117/1.jatis.9.4.048001","DOIUrl":"https://doi.org/10.1117/1.jatis.9.4.048001","url":null,"abstract":"The large side aperture of the Nuclear Spectroscopic Telescope Array (NuSTAR) telescope for unfocused photons (so-called stray light) is a known source of rich astrophysical information. To support many studies based on the NuSTAR stray light data, we present a fully automatic method for determining detector area suitable for background analysis and free from any kind of focused x-ray flux. The method’s main idea is “á trous” wavelet image decomposition, capable of detecting structures of any spatial scale and shape, which makes the method of general use. Applied to the NuSTAR data, the method provides a detector image region with the highest possible statistical quality, suitable for the NuSTAR stray light studies. We developed an open-source Python nuwavdet package, which implements the presented method. The package contains subroutines to generate detector image region for further stray light analysis and/or to produce a list of detector bad-flagged pixels for processing in the NuSTAR Data Analysis Software for conventional x-ray analysis.","PeriodicalId":54342,"journal":{"name":"Journal of Astronomical Telescopes Instruments and Systems","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136381112","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Assessing phase reconstruction accuracy for different nonlinear curvature wavefront sensor configurations 评估不同非线性曲率波前传感器配置的相位重建精度

3区工程技术

Journal of Astronomical Telescopes Instruments and Systems Pub Date : 2023-10-25 DOI: 10.1117/1.jatis.9.4.049001

Letchev, Stanimir, Crass, Jonathan, Crepp, Justin R.

{"title":"Assessing phase reconstruction accuracy for different nonlinear curvature wavefront sensor configurations","authors":"Letchev, Stanimir, Crass, Jonathan, Crepp, Justin R.","doi":"10.1117/1.jatis.9.4.049001","DOIUrl":"https://doi.org/10.1117/1.jatis.9.4.049001","url":null,"abstract":"The nonlinear curvature wavefront sensor (nlCWFS) offers improved sensitivity for adaptive optics (AO) systems compared to existing wavefront sensors, such as the Shack-Hartmann. The nominal nlCWFS design uses a series of imaging planes offset from the pupil along the optical propagation axis as inputs to a numerically-iterative reconstruction algorithm. Research into the nlCWFS has assumed that the device uses four measurement planes configured symmetrically around the optical system pupil. This assumption is not strictly required. In this paper, we perform the first systematic exploration of the location, number, and spatial sampling of measurement planes for the nlCWFS. Our numerical simulations show that the original, symmetric four-plane configuration produces the most consistently accurate results in the shortest time over a broad range of seeing conditions. We find that the inner measurement planes should be situated past the Talbot distance corresponding to a spatial period of $r_0$. The outer planes should be large enough to fully capture field intensity and be situated beyond a distance corresponding to a Fresnel-number-scaled equivalent of $Zapprox50$ km for a $D=0.5$ m pupil with $lambda=532$ nm. The minimum spatial sampling required for diffraction-limited performance is 4-5 pixels per $r_0$ as defined in the pupil plane. We find that neither three-plane nor five-plane configurations offer significant improvements compared to the original design. These results can impact future implementations of the nlCWFS by informing sensor design.","PeriodicalId":54342,"journal":{"name":"Journal of Astronomical Telescopes Instruments and Systems","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134971621","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Characterization of a hybrid array of single and multi-absorber transition-edge sensor microcalorimeters for the Line Emission Mapper 线发射成像仪中单吸收体和多吸收体过渡边缘传感器微热计混合阵列的表征

3区工程技术

Journal of Astronomical Telescopes Instruments and Systems Pub Date : 2023-10-20 DOI: 10.1117/1.jatis.9.4.041006

Nicholas Wakeham, Joseph S. Adams, Simon R. Bandler, James A. Chervenak, Renata S. Cumbee, Fred M. Finkbeiner, Joshua Fuhrman, Samuel Hull, Richard L. Kelley, Caroline A. Kilbourne, Kazuhiro Sakai, Stephen J. Smith, Edward J. Wassell, Sang Yoon

{"title":"Characterization of a hybrid array of single and multi-absorber transition-edge sensor microcalorimeters for the Line Emission Mapper","authors":"Nicholas Wakeham, Joseph S. Adams, Simon R. Bandler, James A. Chervenak, Renata S. Cumbee, Fred M. Finkbeiner, Joshua Fuhrman, Samuel Hull, Richard L. Kelley, Caroline A. Kilbourne, Kazuhiro Sakai, Stephen J. Smith, Edward J. Wassell, Sang Yoon","doi":"10.1117/1.jatis.9.4.041006","DOIUrl":"https://doi.org/10.1117/1.jatis.9.4.041006","url":null,"abstract":". The Line Emission Mapper (LEM) is a proposed x-ray probe mission to study the physics of galaxy formation through spectral and spatial measurements of x-rays in the energy band of 0.2 to 2 keV. The LEM Microcalorimeter Spectrometer instrument on LEM will have a hybrid transition-edge sensor (TES) microcalorimeter array made up of an inner array of single-pixels with one x-ray absorber connected to one TES and an outer array of multi-absorber microcalorimeters, or “ hydras, ” with four absorbers connected to a single TES, each with a different thermal conductance. Here, we characterize the first hybrid array of single-pixel and multi-absorber micro-calorimeters designed for LEM. We present the fundamental transition, noise, and detector performance properties to demonstrate their suitability for the mission. We also show that the spectral resolution at the Al K α line is 1 . 92 (cid:1) 0 . 02 eV for the 4-pixel hydra (coadded) and 0 . 90 (cid:1) 0 . 02 eV for the single-pixels. This is significantly better resolution than the LEM mission level requirement. Finally, we demonstrate that the position discrimination between the four pixels of the hydra can be achieved down to 200 eV when measured with a time-division multiplexed readout using timings representative of the anticipated LEM requirements. © The Authors. Published by SPIE under a Creative Commons Attribution 4.0 International License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI. [DOI: 10.1117/1.JATIS.9.4.041006","PeriodicalId":54342,"journal":{"name":"Journal of Astronomical Telescopes Instruments and Systems","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135617744","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Compact and efficient continuous adiabatic demagnetization refrigerator for line emission mapper 一种紧凑高效的线发射成像用连续绝热消磁制冷机

3区工程技术

Journal of Astronomical Telescopes Instruments and Systems Pub Date : 2023-10-20 DOI: 10.1117/1.jatis.9.4.041003

Amir E. Jahromi, Peter J. Shirron

引用次数: 0