Quantitative analysis with the transition edge sensor microcalorimeter X-ray detector

2007 ◽  
Vol 22 (2) ◽  
pp. 138-141 ◽  
Author(s):  
Terrence Jach ◽  
Nicholas Ritchie ◽  
Joel Ullom ◽  
James A. Beall
Keyword(s):  
Quantitative Analysis ◽  
Transition Edge Sensor ◽  
High Energy ◽  
Standard Reference Materials ◽  
High Energy Resolution ◽  
Chemical Methods ◽  
X Ray ◽  
Transition Edge ◽  
Direct Measurements ◽  
Better Than

We report on the use of a microcalorimeter X-ray detector with a transition edge sensor in an electron probe to perform quantitative analysis. We analyzed two bulk samples of multielement glasses that have been previously characterized by chemical methods for use as standard reference materials. The spectra were analyzed against standards using three different correction schemes. In one of the standards, the reference line was easily resolved despite its proximity within 45 eV of another line. With the exception of direct measurements of oxygen (a particularly challenging element), the results are in agreement with the certified characterization to better than 1% absolute or 8% relative. This demonstrates the potential of microcalorimeter detectors as replacements for conventional energy dispersive detectors in applications requiring high energy resolution.

Transition Edge Sensor (TES) X-Ray Detecting System with Sensitivity Correction to Stabilize the Spectrum Peak Center

2014 ◽  
Vol 617 ◽  
pp. 233-236
Author(s):  
Keiichi Tanaka ◽  
Masataka Ohgaki ◽  
Hidekazu Suzuki ◽  
Masakatsu Hasuda ◽  
Masato Yano ◽  
...  
Keyword(s):  
Energy Resolution ◽  
Transition Edge Sensor ◽  
High Energy ◽  
Transition Curve ◽  
High Energy Resolution ◽  
Time Interval ◽  
Heater Power ◽  
X Ray ◽  
Transition Edge ◽  
Superconducting Current

Transition Edge Sensor (TES) is an energy dispersive X-ray detecting system with high energy resolution. The energy resolution of this system depends on the steepness of superconducting transition curve from normal to superconducting state, heat capacitance and the operating temperature. The TES is based on the dilution refrigerator cooled by about 100 mK. The energy resolution is calculated about 1-2 eV for the detector with maximum detecting energy as 10 eV. The energy resolution also depends on the superconducting current flowing through the TES device because the superconducting current is affected by the temperature stability of the refrigerator. The fluctuation of the superconducting current means the fluctuation of the X-ray spectrum peak center. We have developed the sensitivity correction system to stabilize the peak center of the X-ray spectrum. The peak center of X-ray spectrum correlates with heater power to keep the base temperature of TES device at a constant temperature. The peak center of X-ray spectrum is calibrated by monitoring the heater power at constant time interval using the correlation curve between the peak center of X-ray spectrum and heater power.

scholarly journals Quantitative Analysis on an Electron Probe with the NIST Transition Edge Sensor Microcalorimeter X-ray Detector

2006 ◽  
Vol 12 (S02) ◽  
pp. 832-833
Author(s):  
T Jach ◽  
J Ullom ◽  
N Ritchie ◽  
J Beall
Keyword(s):  
Quantitative Analysis ◽  
Electron Probe ◽  
Transition Edge Sensor ◽  
X Ray ◽  
Transition Edge

Extended abstract of a paper presented at Microscopy and Microanalysis 2006 in Chicago, Illinois, USA, July 30 – August 3, 2006

High sensitivity X-ray analysis for a low accelerating voltage scanning electron microscope using a transition edge sensor

Microscopy ◽  
2020 ◽  
Vol 69 (5) ◽  
pp. 298-303
Author(s):  
Keiichi Tanaka ◽  
Akira Takano ◽  
Atsushi Nagata ◽  
Satoshi Nakayama ◽  
Kaname Takahashi ◽  
...  
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Intensity Ratio ◽  
Transition Edge Sensor ◽  
High Energy Resolution ◽  
Peak Intensity Ratio ◽  
X Ray ◽  
Peak Intensity ◽  
Transition Edge ◽  
Scanning Electron

Abstract A scanning electron microscope transition edge sensor has been developed to analyze the minor or trace constituents contained in a bulk sample and small particles on the sample under a low accelerating voltage (typically <3 keV). The low accelerating voltage enables to improve the spatial analysis resolution because the primary electron diffusion length is limited around the sample surface. The characteristic points of our transition edge sensor are 1) high-energy resolution at 7.2 eV@Al-Kα, 2) continuous operation by using a cryogen-free dilution refrigerator and 3) improvement of transmission efficiency at B-Kα by using thin X-ray film windows between the sample and detector (about 30 times better than our previous system). Our system could achieve a stabilization of the peak shift at Nd-Mα (978 eV) within 1 eV during an operation time of 27 000 s. The detection limits with B-Kα for detection times 600 and 27 000 s were 0.27 and 0.038 wt%, respectively. We investigated the peak separation ability by measuring the peak intensity ratio between the major constitute (silicon) and the minor constitute (tungsten) because the Si-Kα line differs from the W-Mα line by only 35 eV and a small W-Mα peak superimposed on the tail of the large Si-Kα peak. The peak intensity ratio (I(W-Mα)/I(Si-Kα)) was adjusted by the W particle area ratio compared with the Si substrate area. The transition edge sensor could clearly separate the Si-Kα and W-Mα lines even under a peak intensity ratio of 0.01.

CORRELATION OF CRITICAL TEMPERATURES AND ELECTRICAL PROPERTIES IN TITANIUM FILMS

2003 ◽  
Vol 17 (04n06) ◽  
pp. 948-952 ◽  
Author(s):  
C. GANDINI ◽  
V. LACQUANITI ◽  
E. MONTICONE ◽  
C. PORTESI ◽  
M. RAJTERI ◽  
...  
Keyword(s):  
High Energy ◽  
Transition Edge Sensors ◽  
High Energy Resolution ◽  
Critical Temperatures ◽  
X Ray ◽  
Silicon Nitride Films ◽  
Transition Edge ◽  
Electrical Resistivities ◽  
Different Thickness ◽  
Deposition Substrate

Recently transition-edge sensors (TES) have obtained an increasing interest as light detectors due to their high energy resolution and broadband response. Titanium (Ti), with transition temperature up to 0.5 K, is among the suitable materials for TES application. In this work we investigate Ti films obtained from two materials of different purity deposited by e-gun on silicon nitride. Films with different thickness and deposition substrate temperature have been measured. Critical temperatures, electrical resistivities and structural properties obtained from x-ray are related to each other.

Broadband high-energy resolution hard x-ray spectroscopy using transition edge sensors at SPring-8

2021 ◽  
Vol 92 (1) ◽  
pp. 013103
Author(s):  
Shinya Yamada ◽  
Yuto Ichinohe ◽  
Hideyuki Tatsuno ◽  
Ryota Hayakawa ◽  
Hirotaka Suda ◽  
...  
Keyword(s):  
Energy Resolution ◽  
High Energy ◽  
Transition Edge Sensors ◽  
High Energy Resolution ◽  
X Ray ◽  
Transition Edge

Position-sensing transition-edge sensors for large-field high-energy-resolution x-ray imaging spectroscopy

2000 ◽  
Author(s):  
Enectali Figueroa-Feliciano ◽  
Caroline K. Stahle ◽  
Fred M. Finkbeiner ◽  
Mary J. Li ◽  
Mark A. Lindeman ◽  
...  
Keyword(s):  
Energy Resolution ◽  
Imaging Spectroscopy ◽  
High Energy ◽  
Transition Edge Sensors ◽  
Large Field ◽  
High Energy Resolution ◽  
X Ray ◽  
Position Sensing ◽  
Transition Edge ◽  
X Ray Imaging

High Count-Rate Studies of Small-Pitch Transition-Edge Sensor X-ray Microcalorimeters

2014 ◽  
Vol 176 (3-4) ◽  
pp. 597-603 ◽  
Author(s):  
S. J. Lee ◽  
S. R. Bandler ◽  
S. E. Busch ◽  
J. S. Adams ◽  
J. A. Chervenak ◽  
...  
Keyword(s):  
Count Rate ◽  
Transition Edge Sensor ◽  
High Count ◽  
High Count Rate ◽  
X Ray ◽  
Transition Edge ◽  
Small Pitch

scholarly journals High-Energy-Resolution Fluorescence-Detected X-ray Absorption of the Q Intermediate of Soluble Methane Monooxygenase

2017 ◽  
Vol 139 (49) ◽  
pp. 18024-18033 ◽  
Author(s):  
Rebeca G. Castillo ◽  
Rahul Banerjee ◽  
Caleb J. Allpress ◽  
Gregory T. Rohde ◽  
Eckhard Bill ◽  
...  
Keyword(s):  
Energy Resolution ◽  
Methane Monooxygenase ◽  
High Energy ◽  
High Energy Resolution ◽  
X Ray ◽  
Soluble Methane Monooxygenase ◽  
X Ray Absorption

scholarly journals High-energy resolution X-ray absorption and emission spectroscopy reveals insight into unique selectivity of La-based nanoparticles for CO2

2015 ◽  
Vol 112 (52) ◽  
pp. 15803-15808 ◽  
Author(s):  
Ofer Hirsch ◽  
Kristina O. Kvashnina ◽  
Li Luo ◽  
Martin J. Süess ◽  
Pieter Glatzel ◽  
...  
Keyword(s):  
Energy Resolution ◽  
Emission Spectroscopy ◽  
High Energy ◽  
Unit Cell ◽  
High Energy Resolution ◽  
Electron Configuration ◽  
Edge Structure ◽  
X Ray ◽  
X Ray Absorption

The lanthanum-based materials, due to their layered structure and f-electron configuration, are relevant for electrochemical application. Particularly, La2O2CO3 shows a prominent chemoresistive response to CO2. However, surprisingly less is known about its atomic and electronic structure and electrochemically significant sites and therefore, its structure–functions relationships have yet to be established. Here we determine the position of the different constituents within the unit cell of monoclinic La2O2CO3 and use this information to interpret in situ high-energy resolution fluorescence-detected (HERFD) X-ray absorption near-edge structure (XANES) and valence-to-core X-ray emission spectroscopy (vtc XES). Compared with La(OH)3 or previously known hexagonal La2O2CO3 structures, La in the monoclinic unit cell has a much lower number of neighboring oxygen atoms, which is manifested in the whiteline broadening in XANES spectra. Such a superior sensitivity to subtle changes is given by HERFD method, which is essential for in situ studying of the interaction with CO2. Here, we study La2O2CO3-based sensors in real operando conditions at 250 °C in the presence of oxygen and water vapors. We identify that the distribution of unoccupied La d-states and occupied O p- and La d-states changes during CO2 chemoresistive sensing of La2O2CO3. The correlation between these spectroscopic findings with electrical resistance measurements leads to a more comprehensive understanding of the selective adsorption at La site and may enable the design of new materials for CO2 electrochemical applications.

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