Testing the atomic structure of beryllium with AMS

Autor:	H Rohrs, Stephan Vogt, D. Javorsek, David Elmore, Ephraim Fischbach, T. Miller, M. Bourgeois, J. Marder, M. Stohler, Darren J. Hillegonds
Rok vydání:	2002
Předmět:	Physics Nuclear and High Energy Physics business.industry chemistry.chemical_element Electronic structure Prime (order theory) Ion source Nuclear physics symbols.namesake Pauli exclusion principle chemistry Natural gas symbols Beryllium business Instrumentation Accelerator mass spectrometry
Zdroj:	Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 194:78-89
ISSN:	0168-583X
Popis:	If the Pauli exclusion principle were violated, the electronic structure of Be could be 1s 4 (denoted by Be ′ ) rather than 1s 2 2s 2 . This paper describes the results of an experimental search for Be ′ , carried out at PRIME Lab, the Purdue Rare Isotope Measurement Laboratory. In the process of setting stringent constraints on Be ′ using samples of metallic Be, Be ore, natural gas, and air, we made several modifications to the PRIME Lab facility. These included a new Be-free source and the construction of a gas introduction system which coupled to the existing ion source. The modifications permitted us to reach limits which are a factor of nearly 300 better than those obtained in previous experiments.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::0392418be22c3f6ddbac3f00cf20dfb1 https://doi.org/10.1016/s0168-583x(02)00663-8 Zobrazit plný text záznamu Full Text from ScienceDirect