uu.seUppsala University Publications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
A design for an electromagnetic filter for precision energy measurements at the tritium endpoint
INFN, Sez Roma, Rome, Italy;Sapienza Univ Roma, Rome, Italy.
Univ Genoa, Genoa, Italy;INFN, Sez Genova, Genoa, Italy.
Univ Politecn Madrid, Madrid, Spain.
Univ Politecn Madrid, Madrid, Spain.
Show others and affiliations
2019 (English)In: Progress in Particle and Nuclear Physics, ISSN 0146-6410, E-ISSN 1873-2224, Vol. 106, p. 120-131Article, review/survey (Refereed) Published
Abstract [en]

We present a detailed description of the electromagnetic filter for the PTOLEMY project to directly detect the Cosmic Neutrino Background (CNB). Starting with an initial estimate for the orbital magnetic moment, the higher-order drift process of E x B is configured to balance the gradient-B drift motion of the electron in such a way as to guide the trajectory into the standing voltage potential along the mid-plane of the filter. As a function of drift distance along the length of the filter, the filter zooms in with exponentially increasing precision on the transverse velocity component of the electron kinetic energy. This yields a linear dimension for the total filter length that is exceptionally compact compared to previous techniques for electromagnetic filtering. The parallel velocity component of the electron kinetic energy oscillates in an electrostatic harmonic trap as the electron drifts along the length of the filter. An analysis of the phase-space volume conservation validates the expected behavior of the filter from the adiabatic invariance of the orbital magnetic moment and energy conservation following Liouville's theorem for Hamiltonian systems. (C) 2019 Elsevier B.V. All rights reserved.

Place, publisher, year, edition, pages
ELSEVIER SCIENCE BV , 2019. Vol. 106, p. 120-131
Keywords [en]
PTOLEMY, Relic neutrino, Cosmic Neutrino Background, CNB, Neutrino mass, Transverse drift filter
National Category
Condensed Matter Physics
Identifiers
URN: urn:nbn:se:uu:diva-383047DOI: 10.1016/j.ppnp.2019.02.004ISI: 000464490900003OAI: oai:DiVA.org:uu-383047DiVA, id: diva2:1315356
Available from: 2019-05-13 Created: 2019-05-13 Last updated: 2019-05-13Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full text

Authority records BETA

Pérez de los Heros, Carlos

Search in DiVA

By author/editor
Pérez de los Heros, Carlos
By organisation
High Energy Physics
In the same journal
Progress in Particle and Nuclear Physics
Condensed Matter Physics

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 162 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf