_version_ 1866911618704605184
author Yamada, Shinya
Ichinohe, Yuto
Tatsuno, Hideyuki
Hayakawa, Ryota
Suda, Hirotaka
Ohashi, Takaya
Ishisaki, Yoshitaka
Uruga, Tomoya
Sekizawa, Oki
Nitta, Kiyofumi
Takahashi, Yoshio
Itai, Takaaki
Suga, Hiroki
Nagasawa, Makoto
Tanaka, Masato
Kurisu, Minako
Hashimoto, Tadashi
Bennett, Douglas
Denison, Ed
William
Doriese
Durkin, Malcolm
Fowler, Joseph
O'Neil, Galen
Morgan, Kelsey
Schmidt, Dan
Swetz, Daniel
Ullom, Joel
Vale, Leila
Okada, Shinji
Okumura, Takuma
Azuma, Toshiyuki
Tamagawa, Toru
Isobe, Tadaaki
Kohjiro, Satoshi
Noda, Hirofumi
Tanaka, Keigo
Taguchi, Akimichi
Imai, Yuki
Sato, Kosuke
Hayashi, Tasuku
Kashiwabara, Teruhiko
Sakata, Kohei
author_facet Yamada, Shinya
Ichinohe, Yuto
Tatsuno, Hideyuki
Hayakawa, Ryota
Suda, Hirotaka
Ohashi, Takaya
Ishisaki, Yoshitaka
Uruga, Tomoya
Sekizawa, Oki
Nitta, Kiyofumi
Takahashi, Yoshio
Itai, Takaaki
Suga, Hiroki
Nagasawa, Makoto
Tanaka, Masato
Kurisu, Minako
Hashimoto, Tadashi
Bennett, Douglas
Denison, Ed
William
Doriese
Durkin, Malcolm
Fowler, Joseph
O'Neil, Galen
Morgan, Kelsey
Schmidt, Dan
Swetz, Daniel
Ullom, Joel
Vale, Leila
Okada, Shinji
Okumura, Takuma
Azuma, Toshiyuki
Tamagawa, Toru
Isobe, Tadaaki
Kohjiro, Satoshi
Noda, Hirofumi
Tanaka, Keigo
Taguchi, Akimichi
Imai, Yuki
Sato, Kosuke
Hayashi, Tasuku
Kashiwabara, Teruhiko
Sakata, Kohei
contents We have succeeded in operating a transition-edge sensor (TES) spectrometer and evaluating its performance at the SPring-8 synchrotron X-ray light source. The TES spectrometer consists of a 240 pixel National Institute of Standards and Technology (NIST) TES system, and 220 pixels are operated simultaneously with an energy resolution of $4$~eV at 6~keV at a rate of about 1~c/s/pixel. The tolerance for high count rates is evaluated in terms of energy resolution and live time fraction, leading to an empirical compromise of about 2 x 10^3 c/s/all pixels with an energy resolution of 5 eV at 6 keV. By utilizing the TES's wide-band spectroscopic capability, simultaneous multi-element analysis is demonstrated for a standard sample. We conducted X-ray absorption near-edge structure (XANES) analysis in fluorescence mode using the TES spectrometer. The excellent energy resolution of the TES enabled us to detect weak fluorescence lines from dilute samples and trace elements that have previously been difficult to resolve due to the nearly overlapping emission lines of other dominant elements. The neighboring lines of As K alpha and Pb L alpha2 of the standard sample were clearly resolved and the XANES of Pb L alpha2 was obtained. Moreover, the X-ray spectrum from the small amount of Fe in aerosols was distinguished from the spectrum of a blank target, which helps us to understand the targets and the environment. These results are the first important step for the application of high resolution TES-based spectroscopy at hard X-ray synchrotron facilities.
format Preprint
id arxiv_https___arxiv_org_abs_2604_21846
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Broad-band High-Energy Resolution Hard X-ray Spectroscopy using Transition Edge Sensors at SPring-8
Yamada, Shinya
Ichinohe, Yuto
Tatsuno, Hideyuki
Hayakawa, Ryota
Suda, Hirotaka
Ohashi, Takaya
Ishisaki, Yoshitaka
Uruga, Tomoya
Sekizawa, Oki
Nitta, Kiyofumi
Takahashi, Yoshio
Itai, Takaaki
Suga, Hiroki
Nagasawa, Makoto
Tanaka, Masato
Kurisu, Minako
Hashimoto, Tadashi
Bennett, Douglas
Denison, Ed
William
Doriese
Durkin, Malcolm
Fowler, Joseph
O'Neil, Galen
Morgan, Kelsey
Schmidt, Dan
Swetz, Daniel
Ullom, Joel
Vale, Leila
Okada, Shinji
Okumura, Takuma
Azuma, Toshiyuki
Tamagawa, Toru
Isobe, Tadaaki
Kohjiro, Satoshi
Noda, Hirofumi
Tanaka, Keigo
Taguchi, Akimichi
Imai, Yuki
Sato, Kosuke
Hayashi, Tasuku
Kashiwabara, Teruhiko
Sakata, Kohei
Instrumentation and Methods for Astrophysics
High Energy Physics - Experiment
Accelerator Physics
Chemical Physics
Instrumentation and Detectors
We have succeeded in operating a transition-edge sensor (TES) spectrometer and evaluating its performance at the SPring-8 synchrotron X-ray light source. The TES spectrometer consists of a 240 pixel National Institute of Standards and Technology (NIST) TES system, and 220 pixels are operated simultaneously with an energy resolution of $4$~eV at 6~keV at a rate of about 1~c/s/pixel. The tolerance for high count rates is evaluated in terms of energy resolution and live time fraction, leading to an empirical compromise of about 2 x 10^3 c/s/all pixels with an energy resolution of 5 eV at 6 keV. By utilizing the TES's wide-band spectroscopic capability, simultaneous multi-element analysis is demonstrated for a standard sample. We conducted X-ray absorption near-edge structure (XANES) analysis in fluorescence mode using the TES spectrometer. The excellent energy resolution of the TES enabled us to detect weak fluorescence lines from dilute samples and trace elements that have previously been difficult to resolve due to the nearly overlapping emission lines of other dominant elements. The neighboring lines of As K alpha and Pb L alpha2 of the standard sample were clearly resolved and the XANES of Pb L alpha2 was obtained. Moreover, the X-ray spectrum from the small amount of Fe in aerosols was distinguished from the spectrum of a blank target, which helps us to understand the targets and the environment. These results are the first important step for the application of high resolution TES-based spectroscopy at hard X-ray synchrotron facilities.
title Broad-band High-Energy Resolution Hard X-ray Spectroscopy using Transition Edge Sensors at SPring-8
topic Instrumentation and Methods for Astrophysics
High Energy Physics - Experiment
Accelerator Physics
Chemical Physics
Instrumentation and Detectors
url https://arxiv.org/abs/2604.21846