6533b838fe1ef96bd12a3d84
RESEARCH PRODUCT
A design for an electromagnetic filter for precision energy measurements at the tritium endpoint
C. L. ChangC. L. ChangA. Molinero-velaA. NucciottiM. MessinaEmanuele FerriC. Pérez De Los HerosR. SantorelliA. D. FerellaKathryn M. ZurekKathryn M. ZurekJorge PedrósYevgeny RaitsesSergio PastorA. PuiuCarlo Mancini-terraccianoJan ConradChristopher George TullyNicola D'ambrosioFang ZhaoJ. Carabe-lopezAuke-pieter ColijnAuke-pieter ColijnMariangela LisantiMichele BiasottiN. RossiC. GentileC. F. StridC. F. StridG. CavotoCarlo MarianiE. MonticoneW. ChungK. SchaeffnerA. BoscáL. E. MarcucciM. RajteriFrancesco PandolfiAndrea GiacheroOfelia PisantiS. GariazzoP. Garcia-abiaG. Garcia Gomez-tejedorJon E. GudmundssonAntonio D. PolosaGianpiero ManganoA. G. CoccoYonit HochbergJavier MartínezP. F. De SalasP. F. De SalasM. FaverzaniFernando CalleFlavio GattiMaria Grazia BettiYonatan KahnYonatan Kahnsubject
Nuclear and High Energy PhysicsPhysics - Instrumentation and DetectorsFOS: Physical sciencesElectron7. Clean energy01 natural sciencesPartícules (Física nuclear)Hamiltonian systemNeutrino massRelic neutrino0103 physical sciencesTransverse drift filter010306 general physicsInstrumentation and Methods for Astrophysics (astro-ph.IM)PTOLEMYPhysicsMagnetic moment010308 nuclear & particles physicsCNB; Cosmic Neutrino Background; Neutrino mass; PTOLEMY; Relic neutrino; Transverse drift filterInstrumentation and Detectors (physics.ins-det)CNBFilter (signal processing)CNB; Cosmic Neutrino Background; Neutrino mass; PTOLEMY; Relic neutrino; Transverse drift filter; Nuclear and High Energy PhysicsComputational physicsEnergy conservationHarmonicAstrophysics - Instrumentation and Methods for AstrophysicsNeutrino maEnergy (signal processing)Cosmic Neutrino BackgroundVoltagedescription
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.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2019-05-01 | Progress in Particle and Nuclear Physics |