Absolute Energy Calibration of X-ray TESs with 0.04 eV Uncertainty at 6.4 keV in a Hadron-Beam Environment

Tatsuno, H.; Doriese, W. B.; Bennett, Douglas A.; Curceanu, C.; Fowler, Joseph W.; Gard, Johnathon D.; Gustafsson, F. P.; Hashimoto, T.; Hayano, R.; Hays-Wehle, J. P.; Hilton, G. C.; Iliescu, M.; Ishimoto, S.; Itahashi, K.; Iwasaki, M.; Kuwabara, Kei; Ma, Yue; Márton, J.; Noda, Hirofumi; O’Neil, Galen C.; Okada, S.; Outa, H.; Reintsema, C. D.; Sato, Masaharu; Schmidt, Daniel R.; Shi, H.; Suzuki, K.; Suzuki, T.; Uhlig, Jens; Ullom, Joel N.; Widmann, E.; Yamada, S.; Zmeskal, J.; Swetz, Daniel S.

doi:10.1007/s10909-016-1491-2

Cited by 33 publications

(21 citation statements)

References 12 publications

(17 reference statements)

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“…placed atop of the TES, tests have shown that this material affects the detector response causing an undesirable tail on the low energy side of a monochromatic energy peak. The same behavior concerning bismuth absorbers was found in different TES microcalorimeters [20]. Furthermore, by replacing the bismuth with gold and maintaining the same design, the transition shape showed suppression of the T c due to proximity effects of the superconductor beneath the gold layer [21]: this is reflected in an undesirable kink in the transition shape which in turn causes strong non-linearity in the detector response.…”

Section: Detector Designsupporting

confidence: 53%

High-resolution high-speed microwave-multiplexed low temperature microcalorimeters for the HOLMES experiment

et al. 2019

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We present the first performance results obtained with microwave multiplexed Transition Edge Sensors prototypes specifically designed for the HOLMES experiment, a project aimed at directly measuring the electron neutrino mass through the calorimetric measurement of the 163 Ho electron capture spectrum. The detectors required for such an experiment feature a high energy resolution at the Qvalue of the transition, around ∼ 2.8 keV, and a fast response time combined with the compatibility to be multiplexed in large arrays in order to collect a large statistics while keeping the pileup contribution as small as possible. In addition, the design has to be suitable for future ion-implantation of 163 Ho. The results obtained in these tests allowed us to identify the optimal detector design among several prototypes. The chosen detector achieved an energy resolution of (4.5 ± 0.3) eV on the chlorine K α line, at ∼ 2.6 keV, obtained with an exponential rise time of 14 µs. The achievements described in this paper pose a milestone for the HOLMES detectors, setting a baseline for the subsequent developments, aiming to the actual ion-implantation of the 163 Ho nuclei. In the first section the HOLMES experiment is outlined along with its physics goal, while in the second section the HOLMES detectors are described; the experimental setup and the calibration source used for the measurements described in this paper are reported in Sects. 3 and 4, respectively; finally, the details of the data analysis and the results obtained are reported in Sect. 6.

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Section: Detector Designsupporting

confidence: 53%

High-resolution high-speed microwave-multiplexed low temperature microcalorimeters for the HOLMES experiment

et al. 2019

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“…Typically, one or multiple strong lines in the calibration data are measured at multiple times during an ADR cycle to generate the data necessary for drift correction, but strong lines in the measured EBIT data could also be used for this purpose if they exist for a given measurement. This approach to drift correction has previously been used to achieve on order 10 −5 fractional line position accuracy 80,81 . In addition to the drift in pulse height throughout an ADR cy-cle, there is also a small amount of pulse height variation between different ADR cycles (detectors typically show ∼ 10 −4 − 10 −3 cycle-to-cycle variation in fractional pulse height when measured at the same time after the start of an ADR cycle).…”

Section: Data Reductionmentioning

confidence: 99%

A transition-edge sensor-based x-ray spectrometer for the study of highly charged ions at the National Institute of Standards and Technology electron beam ion trap

Szypryt

O’Neil

Takács

et al. 2019

Review of Scientific Instruments

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We report on the design, commissioning, and initial measurements of a Transition-edge Sensor (TES) x-ray spectrometer for the Electron Beam Ion Trap (EBIT) at the National Institute of Standards and Technology (NIST). Over the past few decades, the NIST EBIT has produced numerous studies of highly charged ions in diverse fields such as atomic physics, plasma spectroscopy, and laboratory astrophysics. The newly commissioned NIST EBIT TES Spectrometer (NETS) improves the measurement capabilities of the EBIT through a combination of high x-ray collection efficiency and resolving power. NETS utilizes 192 individual TES x-ray microcalorimeters (166/192 yield) to improve upon the collection area by a factor of ∼30 over the 4-pixel neutron transmutation doped germanium-based microcalorimeter spectrometer previously used at the NIST EBIT. The NETS microcalorimeters are optimized for the x-ray energies from roughly 500 eV to 8,000 eV and achieve an energy resolution of 3.7 eV to 5.0 eV over this range, a more modest (< 2×) improvement over the previous microcalorimeters. Beyond this energy range NETS can operate with various trade-offs, the most significant of which are reduced efficiency at lower energies and being limited to a subset of the pixels at higher energies. As an initial demonstration of the capabilities of NETS, we measured transitions in He-like and H-like O, Ne, and Ar as well as Ni-like W. We detail the energy calibration and data analysis techniques used to transform detector counts into x-ray spectra, a process that will be the basis for analyzing future data.

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“…One of the keys in this highprecision measurement is the absolute energy calibration for every single readout channel. We use the X-ray generators and secondary target metals of chromium, cobalt, and copper based on the result of a test experiment [6,7]. Details of the experimental setup are described in reference [8].…”

Section: Kaonic Helium 3d → 2p With Tes (J-parc E62)mentioning

confidence: 99%

Kaonic Atom Experiments at J-PARC

Hashimoto

Aikawa

Ajimura

et al. 2019

Proceedings of the 8th International Conference on Quarks and Nuclear Physics (QNP2018)

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Absolute Energy Calibration of X-ray TESs with 0.04 eV Uncertainty at 6.4 keV in a Hadron-Beam Environment

Cited by 33 publications

References 12 publications

High-resolution high-speed microwave-multiplexed low temperature microcalorimeters for the HOLMES experiment

High-resolution high-speed microwave-multiplexed low temperature microcalorimeters for the HOLMES experiment

A transition-edge sensor-based x-ray spectrometer for the study of highly charged ions at the National Institute of Standards and Technology electron beam ion trap

Kaonic Atom Experiments at J-PARC

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