The noise and energy resolution of the Ti/Au bilayer X-ray TES calorimeter with an Au absorber

T. Yoshino; K. Mukai; Y. Ezoe; N. Y. Yamasaki; K. Mitsuda; H. Kurabayashi; Y. Ishisaki; T. Takano; R. Maeda

doi:10.1007/s10909-007-9617-1

The noise and energy resolution of the Ti/Au bilayer X-ray TES calorimeter with an Au absorber

T. Yoshino
, K. Mukai
, Y. Ezoe
, N. Y. Yamasaki
, K. Mitsuda
, H. Kurabayashi
, Y. Ishisaki
, T. Takano
, R. Maeda

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

We fabricated the TES microcalorimeter with TES(Ti/Au) and gold absorber, and obtained FWHM energy resolution of 4.8±0.3 eV at 5.9keV. The baseline resolution, i.e. the resolution determined by noise, was 4.1±0.1 eV. From the noise spectra we found that the square of the baseline resolution could be approximately decomposed into contributions of three noise components. They are estimated to be (2.5 eV)² (the intrinsic noise), (1.5 eV)² (the readout noise), and (3.0 eV)² (so-called excess noise). There is additional broadening of (2.5 eV)² from the baseline resolution. The excess noise is the largest limiting factor of the energy resolution of the device.

Original language	English
Pages (from-to)	185-189
Number of pages	5
Journal	Journal of Low Temperature Physics
Volume	151
Issue number	1-2 PART 1
DOIs	https://doi.org/10.1007/s10909-007-9617-1
State	Published - Apr 2008
Externally published	Yes

Keywords

Au absorber
Microcalorimeter
TES
Transition-edge sensor

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10.1007/s10909-007-9617-1

Cite this

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title = "The noise and energy resolution of the Ti/Au bilayer X-ray TES calorimeter with an Au absorber",

abstract = "We fabricated the TES microcalorimeter with TES(Ti/Au) and gold absorber, and obtained FWHM energy resolution of 4.8±0.3 eV at 5.9keV. The baseline resolution, i.e. the resolution determined by noise, was 4.1±0.1 eV. From the noise spectra we found that the square of the baseline resolution could be approximately decomposed into contributions of three noise components. They are estimated to be (2.5 eV)2 (the intrinsic noise), (1.5 eV)2 (the readout noise), and (3.0 eV)2 (so-called excess noise). There is additional broadening of (2.5 eV)2 from the baseline resolution. The excess noise is the largest limiting factor of the energy resolution of the device.",

keywords = "Au absorber, Microcalorimeter, TES, Transition-edge sensor",

author = "T. Yoshino and K. Mukai and Y. Ezoe and Yamasaki, \{N. Y.\} and K. Mitsuda and H. Kurabayashi and Y. Ishisaki and T. Takano and R. Maeda",

year = "2008",

month = apr,

doi = "10.1007/s10909-007-9617-1",

language = "英语",

volume = "151",

pages = "185--189",

journal = "Journal of Low Temperature Physics",

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publisher = "Springer New York",

number = "1-2 PART 1",

}

TY - JOUR

T1 - The noise and energy resolution of the Ti/Au bilayer X-ray TES calorimeter with an Au absorber

AU - Yoshino, T.

AU - Mukai, K.

AU - Ezoe, Y.

AU - Yamasaki, N. Y.

AU - Mitsuda, K.

AU - Kurabayashi, H.

AU - Ishisaki, Y.

AU - Takano, T.

AU - Maeda, R.

PY - 2008/4

Y1 - 2008/4

N2 - We fabricated the TES microcalorimeter with TES(Ti/Au) and gold absorber, and obtained FWHM energy resolution of 4.8±0.3 eV at 5.9keV. The baseline resolution, i.e. the resolution determined by noise, was 4.1±0.1 eV. From the noise spectra we found that the square of the baseline resolution could be approximately decomposed into contributions of three noise components. They are estimated to be (2.5 eV)2 (the intrinsic noise), (1.5 eV)2 (the readout noise), and (3.0 eV)2 (so-called excess noise). There is additional broadening of (2.5 eV)2 from the baseline resolution. The excess noise is the largest limiting factor of the energy resolution of the device.

AB - We fabricated the TES microcalorimeter with TES(Ti/Au) and gold absorber, and obtained FWHM energy resolution of 4.8±0.3 eV at 5.9keV. The baseline resolution, i.e. the resolution determined by noise, was 4.1±0.1 eV. From the noise spectra we found that the square of the baseline resolution could be approximately decomposed into contributions of three noise components. They are estimated to be (2.5 eV)2 (the intrinsic noise), (1.5 eV)2 (the readout noise), and (3.0 eV)2 (so-called excess noise). There is additional broadening of (2.5 eV)2 from the baseline resolution. The excess noise is the largest limiting factor of the energy resolution of the device.

KW - Au absorber

KW - Microcalorimeter

KW - TES

KW - Transition-edge sensor

UR - https://www.scopus.com/pages/publications/40649124728

U2 - 10.1007/s10909-007-9617-1

DO - 10.1007/s10909-007-9617-1

M3 - 文章

AN - SCOPUS:40649124728

SN - 0022-2291

VL - 151

SP - 185

EP - 189

JO - Journal of Low Temperature Physics

JF - Journal of Low Temperature Physics

IS - 1-2 PART 1

ER -

The noise and energy resolution of the Ti/Au bilayer X-ray TES calorimeter with an Au absorber

Abstract

Keywords

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