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Fast temperature spectrometer for samples under extreme conditions

Zhang, Dongzhou and Jackson, Jennifer M. and Zhao, Jiyong and Sturhahn, Wolfgang and Alp, E. Ercan and Toellner, Thomas S. and Hu, Michael Y. (2015) Fast temperature spectrometer for samples under extreme conditions. Review of Scientific Instruments, 86 (1). Art. No. 013105. ISSN 0034-6748. doi:10.1063/1.4905431.

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We have developed a multi-wavelength Fast Temperature Readout (FasTeR) spectrometer to capture a sample’s transient temperature fluctuations, and reduce uncertainties in melting temperature determination. Without sacrificing accuracy, FasTeR features a fast readout rate (about 100 Hz), high sensitivity, large dynamic range, and a well-constrained focus. Complimenting a charge-coupled device spectrometer, FasTeR consists of an array of photomultiplier tubes and optical dichroic filters. The temperatures determined by FasTeR outside of the vicinity of melting are, generally, in good agreement with results from the charge-coupled device spectrometer. Near melting, FasTeR is capable of capturing transient temperature fluctuations, at least on the order of 300 K/s. A software tool, SIMFaster, is described and has been developed to simulate FasTeR and assess design configurations. FasTeR is especially suitable for temperature determinations that utilize ultra-fast techniques under extreme conditions. Working in parallel with the laser-heated diamond-anvil cell, synchrotron Mössbauer spectroscopy, and X-ray diffraction, we have applied the FasTeR spectrometer to measure the melting temperature of ^(57)Fe_(0.9) Ni_(0.1) at high pressure.

Item Type:Article
Related URLs:
URLURL TypeDescription
Zhang, Dongzhou0000-0002-6679-892X
Jackson, Jennifer M.0000-0002-8256-6336
Zhao, Jiyong0000-0002-0777-3626
Sturhahn, Wolfgang0000-0002-9606-4740
Alp, E. Ercan0000-0002-4803-8863
Hu, Michael Y.0000-0002-3718-7169
Additional Information:© 2015 AIP Publishing LLC. Received 1 July 2014; accepted 20 December 2014; published online 13 January 2015. We thank G. Shen, V. B. Prakapenka, M. Rivers, Y. Meng, W. Bi, A. Alatas, and B. Chen for useful discussions and help with commissioning of this system. We are grateful to C. A. Murphy for synthesizing the ^(57)Fe_(0.9)Ni_(0.1) sample. We thank the California Institute of Technology and NSF (EAR-1316362) for support of this research, GSE-CARS and HP-CAT for the use of the laser drilling and the ruby fluorescence systems, and an anonymous reviewer for his/her thoughtful and constructive comments. Use of the Advanced Photon Source is supported by the U.S. D.O.E., O.S., O.B.E.S. (DE-AC02-06CH11357). Sector 3 operations are supported in part by COMPRES under NSF Cooperative Agreement EAR 06-49658.
Group:Seismological Laboratory, Division of Geological and Planetary Sciences
Funding AgencyGrant Number
Department of Energy (DOE)DE-AC02-06CH11357
NSFEAR 06-49658
Issue or Number:1
Record Number:CaltechAUTHORS:20150120-113020653
Persistent URL:
Official Citation:Fast temperature spectrometer for samples under extreme conditions Dongzhou Zhang, Jennifer M. Jackson, Jiyong Zhao, Wolfgang Sturhahn, E. Ercan Alp, Thomas S. Toellner and Michael Y. Hu Rev. Sci. Instrum. 86, 013105 (2015);
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:53877
Deposited By: Ruth Sustaita
Deposited On:20 Jan 2015 22:13
Last Modified:10 Nov 2021 20:08

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