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Pulsed-Laser Calibration of Thermal Microcalorimeters for X-Ray Astronomy
Pulsed-Laser Calibration of Thermal Microcalorimeters for X-Ray Astronomy
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20250211153046
- ISBN
- 9798346746881
- DDC
- 530
- 저자명
- Roy, Avirup.
- 서명/저자
- Pulsed-Laser Calibration of Thermal Microcalorimeters for X-Ray Astronomy
- 발행사항
- [Sl] : The University of Wisconsin - Madison, 2024
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2024
- 형태사항
- 116 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 86-05, Section: B.
- 주기사항
- Advisor: McCammon, Dan.
- 학위논문주기
- Thesis (Ph.D.)--The University of Wisconsin - Madison, 2024.
- 초록/해제
- 요약The performance of single photon microcalorimeters for high-resolution X-ray spectroscopy has improved to the point that it can be limited by our ability to calibrate these detectors. X-ray fluorescent lines have been the usual standard for calibrations, but they have intrinsic widths much broader than the current detector resolution. Since microcalorimeters respond to total energy deposited as heat, we have investigated the idea that five hundred 3 eV photons from an ultraviolet laser delivered in a pulse much shorter than the thermal integration time of the detectors should look the same as a single 1500 eV X-ray photon.We have illuminated devices that have 290 µm square gold absorbers, superconducting transition-edge sensor (TES) thermometers, and about 1 eV FWHM resolution with ∼ 100 ns pulses from an ultraviolet laser. This produces combs of lines with 3 eV spacing and negligible intrinsic width that can be distinguished to at least 1700 eV. The accuracy of the line energies is limited only by our knowledge of the laser wavelength. Simultaneous illumination with oxygen and aluminum K fluorescent lines shows that the response to an X-ray photon is indistinguishable from the response to a burst of UV photons with the same total energy to better than 0.4 eV at 1500 eV. This performance is more than adequate for our current sounding rocket instrument. We discuss the path forward to possibly demonstrating the 0.1 eV at 10 keV standard that would be desirable for instruments on major space missions.
- 일반주제명
- Physics
- 일반주제명
- Astronomy
- 일반주제명
- Low temperature physics
- 키워드
- Calibration
- 키워드
- Pulsed laser
- 키워드
- X-ray
- 기타저자
- The University of Wisconsin - Madison Physics
- 기본자료저록
- Dissertations Abstracts International. 86-05B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■00520250211153046
■006m o d
■007cr#unu||||||||
■020 ▼a9798346746881
■035 ▼a(MiAaPQ)AAI31640591
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a530
■1001 ▼aRoy, Avirup.
■24510▼aPulsed-Laser Calibration of Thermal Microcalorimeters for X-Ray Astronomy
■260 ▼a[Sl]▼bThe University of Wisconsin - Madison▼c2024
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2024
■300 ▼a116 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 86-05, Section: B.
■500 ▼aAdvisor: McCammon, Dan.
■5021 ▼aThesis (Ph.D.)--The University of Wisconsin - Madison, 2024.
■520 ▼aThe performance of single photon microcalorimeters for high-resolution X-ray spectroscopy has improved to the point that it can be limited by our ability to calibrate these detectors. X-ray fluorescent lines have been the usual standard for calibrations, but they have intrinsic widths much broader than the current detector resolution. Since microcalorimeters respond to total energy deposited as heat, we have investigated the idea that five hundred 3 eV photons from an ultraviolet laser delivered in a pulse much shorter than the thermal integration time of the detectors should look the same as a single 1500 eV X-ray photon.We have illuminated devices that have 290 µm square gold absorbers, superconducting transition-edge sensor (TES) thermometers, and about 1 eV FWHM resolution with ∼ 100 ns pulses from an ultraviolet laser. This produces combs of lines with 3 eV spacing and negligible intrinsic width that can be distinguished to at least 1700 eV. The accuracy of the line energies is limited only by our knowledge of the laser wavelength. Simultaneous illumination with oxygen and aluminum K fluorescent lines shows that the response to an X-ray photon is indistinguishable from the response to a burst of UV photons with the same total energy to better than 0.4 eV at 1500 eV. This performance is more than adequate for our current sounding rocket instrument. We discuss the path forward to possibly demonstrating the 0.1 eV at 10 keV standard that would be desirable for instruments on major space missions.
■590 ▼aSchool code: 0262.
■650 4▼aPhysics
■650 4▼aAstronomy
■650 4▼aLow temperature physics
■653 ▼aCalibration
■653 ▼aMicrocalorimeters
■653 ▼aPulsed laser
■653 ▼aTransition-edge sensors
■653 ▼aX-ray
■690 ▼a0605
■690 ▼a0606
■690 ▼a0598
■71020▼aThe University of Wisconsin - Madison▼bPhysics.
■7730 ▼tDissertations Abstracts International▼g86-05B.
■790 ▼a0262
■791 ▼aPh.D.
■792 ▼a2024
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17164785▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
