A design for an electromagnetic filter for precision energy measurements at the tritium endpoint

M. G. Betti, M. Biasotti, A. Boscá, F. Calle, J. Carabe-Lopez, G. Cavoto, C. Chang, W. Chung, A. G. Cocco, A. P. Colijn, J. Conrad, N. D'Ambrosio, P. F. de Salas, M. Faverzani, A. Ferella, E. Ferri, P. Garcia-Abia, G. Garcia Gomez-Tejedor, S. Gariazzo, F. GattiC. Gentile, A. Giachero, J. E. Gudmundsson, Y. Hochberg, Y. Kahn, M. Lisanti, C. Mancini-Terracciano, G. Mangano, L. E. Marcucci, C. Mariani, J. Martínez, M. Messina, A. Molinero-Vela, E. Monticone, A. Nucciotti, F. Pandolfi, S. Pastor, J. Pedrós, C. Pérez de los Heros, O. Pisanti, A. D. Polosa, A. Puiu, Y. Raitses, M. Rajteri, N. Rossi, R. Santorelli, K. Schaeffner, C. F. Strid, C. G. Tully, F. Zhao, K. M. Zurek

Research output: Contribution to journalReview article

Abstract

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×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.

Original languageEnglish (US)
Pages (from-to)120-131
Number of pages12
JournalProgress in Particle and Nuclear Physics
Volume106
DOIs
StatePublished - May 2019
Externally publishedYes

Fingerprint

tritium
electromagnetism
filters
energy
conservation
electrons
magnetic moments
kinetic energy
Liouville theorem
orbitals
energy conservation
invariance
neutrinos
trajectories
traps
electrostatics
harmonics
gradients
electric potential
estimates

Keywords

  • CNB
  • Cosmic Neutrino Background
  • Neutrino mass
  • PTOLEMY
  • Relic neutrino
  • Transverse drift filter

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Betti, M. G., Biasotti, M., Boscá, A., Calle, F., Carabe-Lopez, J., Cavoto, G., ... Zurek, K. M. (2019). A design for an electromagnetic filter for precision energy measurements at the tritium endpoint. Progress in Particle and Nuclear Physics, 106, 120-131. https://doi.org/10.1016/j.ppnp.2019.02.004

A design for an electromagnetic filter for precision energy measurements at the tritium endpoint. / Betti, M. G.; Biasotti, M.; Boscá, A.; Calle, F.; Carabe-Lopez, J.; Cavoto, G.; Chang, C.; Chung, W.; Cocco, A. G.; Colijn, A. P.; Conrad, J.; D'Ambrosio, N.; de Salas, P. F.; Faverzani, M.; Ferella, A.; Ferri, E.; Garcia-Abia, P.; Gomez-Tejedor, G. Garcia; Gariazzo, S.; Gatti, F.; Gentile, C.; Giachero, A.; Gudmundsson, J. E.; Hochberg, Y.; Kahn, Y.; Lisanti, M.; Mancini-Terracciano, C.; Mangano, G.; Marcucci, L. E.; Mariani, C.; Martínez, J.; Messina, M.; Molinero-Vela, A.; Monticone, E.; Nucciotti, A.; Pandolfi, F.; Pastor, S.; Pedrós, J.; de los Heros, C. Pérez; Pisanti, O.; Polosa, A. D.; Puiu, A.; Raitses, Y.; Rajteri, M.; Rossi, N.; Santorelli, R.; Schaeffner, K.; Strid, C. F.; Tully, C. G.; Zhao, F.; Zurek, K. M.

In: Progress in Particle and Nuclear Physics, Vol. 106, 05.2019, p. 120-131.

Research output: Contribution to journalReview article

Betti, MG, Biasotti, M, Boscá, A, Calle, F, Carabe-Lopez, J, Cavoto, G, Chang, C, Chung, W, Cocco, AG, Colijn, AP, Conrad, J, D'Ambrosio, N, de Salas, PF, Faverzani, M, Ferella, A, Ferri, E, Garcia-Abia, P, Gomez-Tejedor, GG, Gariazzo, S, Gatti, F, Gentile, C, Giachero, A, Gudmundsson, JE, Hochberg, Y, Kahn, Y, Lisanti, M, Mancini-Terracciano, C, Mangano, G, Marcucci, LE, Mariani, C, Martínez, J, Messina, M, Molinero-Vela, A, Monticone, E, Nucciotti, A, Pandolfi, F, Pastor, S, Pedrós, J, de los Heros, CP, Pisanti, O, Polosa, AD, Puiu, A, Raitses, Y, Rajteri, M, Rossi, N, Santorelli, R, Schaeffner, K, Strid, CF, Tully, CG, Zhao, F & Zurek, KM 2019, 'A design for an electromagnetic filter for precision energy measurements at the tritium endpoint', Progress in Particle and Nuclear Physics, vol. 106, pp. 120-131. https://doi.org/10.1016/j.ppnp.2019.02.004
Betti, M. G. ; Biasotti, M. ; Boscá, A. ; Calle, F. ; Carabe-Lopez, J. ; Cavoto, G. ; Chang, C. ; Chung, W. ; Cocco, A. G. ; Colijn, A. P. ; Conrad, J. ; D'Ambrosio, N. ; de Salas, P. F. ; Faverzani, M. ; Ferella, A. ; Ferri, E. ; Garcia-Abia, P. ; Gomez-Tejedor, G. Garcia ; Gariazzo, S. ; Gatti, F. ; Gentile, C. ; Giachero, A. ; Gudmundsson, J. E. ; Hochberg, Y. ; Kahn, Y. ; Lisanti, M. ; Mancini-Terracciano, C. ; Mangano, G. ; Marcucci, L. E. ; Mariani, C. ; Martínez, J. ; Messina, M. ; Molinero-Vela, A. ; Monticone, E. ; Nucciotti, A. ; Pandolfi, F. ; Pastor, S. ; Pedrós, J. ; de los Heros, C. Pérez ; Pisanti, O. ; Polosa, A. D. ; Puiu, A. ; Raitses, Y. ; Rajteri, M. ; Rossi, N. ; Santorelli, R. ; Schaeffner, K. ; Strid, C. F. ; Tully, C. G. ; Zhao, F. ; Zurek, K. M. / A design for an electromagnetic filter for precision energy measurements at the tritium endpoint. In: Progress in Particle and Nuclear Physics. 2019 ; Vol. 106. pp. 120-131.
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abstract = "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×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.",
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T1 - A design for an electromagnetic filter for precision energy measurements at the tritium endpoint

AU - Betti, M. G.

AU - Biasotti, M.

AU - Boscá, A.

AU - Calle, F.

AU - Carabe-Lopez, J.

AU - Cavoto, G.

AU - Chang, C.

AU - Chung, W.

AU - Cocco, A. G.

AU - Colijn, A. P.

AU - Conrad, J.

AU - D'Ambrosio, N.

AU - de Salas, P. F.

AU - Faverzani, M.

AU - Ferella, A.

AU - Ferri, E.

AU - Garcia-Abia, P.

AU - Gomez-Tejedor, G. Garcia

AU - Gariazzo, S.

AU - Gatti, F.

AU - Gentile, C.

AU - Giachero, A.

AU - Gudmundsson, J. E.

AU - Hochberg, Y.

AU - Kahn, Y.

AU - Lisanti, M.

AU - Mancini-Terracciano, C.

AU - Mangano, G.

AU - Marcucci, L. E.

AU - Mariani, C.

AU - Martínez, J.

AU - Messina, M.

AU - Molinero-Vela, A.

AU - Monticone, E.

AU - Nucciotti, A.

AU - Pandolfi, F.

AU - Pastor, S.

AU - Pedrós, J.

AU - de los Heros, C. Pérez

AU - Pisanti, O.

AU - Polosa, A. D.

AU - Puiu, A.

AU - Raitses, Y.

AU - Rajteri, M.

AU - Rossi, N.

AU - Santorelli, R.

AU - Schaeffner, K.

AU - Strid, C. F.

AU - Tully, C. G.

AU - Zhao, F.

AU - Zurek, K. M.

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N2 - 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×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.

AB - 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×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.

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KW - Neutrino mass

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