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Article: The new MRTOF mass spectrograph following the ZeroDegree spectrometer at RIKEN’s RIBF facility

TitleThe new MRTOF mass spectrograph following the ZeroDegree spectrometer at RIKEN’s RIBF facility
Authors
KeywordsHeavy nuclei
Multi-reflection time-of-flight mass spectrometry
Nuclear masses
Precision physics
Time-of-flight mass spectrometry
Issue Date21-Dec-2022
PublisherElsevier
Citation
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2023, v. 1047, p. 1-12 How to Cite?
Abstract

A newly assembled multi-reflection time-of-flight mass spectrograph (MRTOF-MS) at RIKEN’s RIBF facility
became operational for the first time in spring 2020; further modifications and performance tests using stable ions were completed in early 2021. By using a pulsed-drift-tube technique to modify the ions’ kinetic energy in a wide range, we directly characterize the dispersion function of the system for use in a new procedure for optimizing the voltages applied to the electrostatic mirrors. Thus far, a mass resolving power of 𝑅𝑚 > 1 000 000 is reached within a total time-of-flight of only 12.5 ms, making the spectrometer capable of studying shortlived nuclei possessing low-lying isomers. Detailed information about the setup and measurement procedure is reported, and an alternative in-MRTOF ion selection scheme to remove molecular contaminants in the absence of a dedicated deflection device is introduced. The setup underwent an initial on-line commissioning at the BigRIPS facility at the end of 2020, where more than 70 nuclear masses have been measured. A summary of the commissioning experiments and results from a test of mass accuracy will be presented.


Persistent Identifierhttp://hdl.handle.net/10722/338969
ISSN
2023 Impact Factor: 1.5
2023 SCImago Journal Rankings: 0.514
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorRosenbusch, M-
dc.contributor.authorWada, M-
dc.contributor.authorChen, S-
dc.contributor.authorTakamine, A-
dc.contributor.authorIimura, S-
dc.contributor.authorHou, D-
dc.contributor.authorXian, W-
dc.contributor.authorYan, S-
dc.contributor.authorSchury, P-
dc.contributor.authorHirayama, Y-
dc.contributor.authorIto, Y-
dc.contributor.authorIshiyama, H-
dc.contributor.authorKimura, S-
dc.contributor.authorKojima, T-
dc.contributor.authorLee, J-
dc.contributor.authorLiu, J-
dc.contributor.authorMichimasa, S-
dc.contributor.authorMiyatake, H-
dc.contributor.authorMoon, JY-
dc.contributor.authorMukai, M-
dc.contributor.authorNaimi, S-
dc.contributor.authorNishimura, S-
dc.contributor.authorNiwase, T-
dc.contributor.authorSonoda, T-
dc.contributor.authorWatanabe, YX-
dc.contributor.authorWollnik, H-
dc.date.accessioned2024-03-11T10:32:53Z-
dc.date.available2024-03-11T10:32:53Z-
dc.date.issued2022-12-21-
dc.identifier.citationNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2023, v. 1047, p. 1-12-
dc.identifier.issn0168-9002-
dc.identifier.urihttp://hdl.handle.net/10722/338969-
dc.description.abstract<p>A newly assembled multi-reflection time-of-flight mass spectrograph (MRTOF-MS) at RIKEN’s RIBF facility<br>became operational for the first time in spring 2020; further modifications and performance tests using stable ions were completed in early 2021. By using a pulsed-drift-tube technique to modify the ions’ kinetic energy in a wide range, we directly characterize the dispersion function of the system for use in a new procedure for optimizing the voltages applied to the electrostatic mirrors. Thus far, a mass resolving power of 𝑅𝑚 > 1 000 000 is reached within a total time-of-flight of only 12.5 ms, making the spectrometer capable of studying shortlived nuclei possessing low-lying isomers. Detailed information about the setup and measurement procedure is reported, and an alternative in-MRTOF ion selection scheme to remove molecular contaminants in the absence of a dedicated deflection device is introduced. The setup underwent an initial on-line commissioning at the BigRIPS facility at the end of 2020, where more than 70 nuclear masses have been measured. A summary of the commissioning experiments and results from a test of mass accuracy will be presented.</p>-
dc.languageeng-
dc.publisherElsevier-
dc.relation.ispartofNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment-
dc.subjectHeavy nuclei-
dc.subjectMulti-reflection time-of-flight mass spectrometry-
dc.subjectNuclear masses-
dc.subjectPrecision physics-
dc.subjectTime-of-flight mass spectrometry-
dc.titleThe new MRTOF mass spectrograph following the ZeroDegree spectrometer at RIKEN’s RIBF facility-
dc.typeArticle-
dc.identifier.doi10.1016/j.nima.2022.167824-
dc.identifier.scopuseid_2-s2.0-85145663733-
dc.identifier.volume1047-
dc.identifier.spage1-
dc.identifier.epage12-
dc.identifier.eissn1872-9576-
dc.identifier.isiWOS:000993715600001-
dc.identifier.issnl0168-9002-

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