In the framework of the CRYSTAL proposal for the pro- duction and studies of ordered beams, a direct imaging di- agnostics of longitudinal structures of ordered ions is now under development. The fundamental elements of the di- agnostics device are a thin foil, an accelerating grid, an RF camera and an imaging detector. The thin carbon foil is responsible for the direct production of time correlated electrons upon the arrival of ordered ions. The accelerating grid (10-15 kV) is used to enhance the time correlation of the electrons against the angular spread of emission. The accelerating grid is followed by the RF camera, working at 2.465 GHz, for the transverse deflection of the correlated electrons. A detector with spatial resolution around 50 micron is foreseen after a drift length of 30 cm. The time response of the thin carbon foil was investigated with a Monte Carlo method with particular emphasis to electrons with kinetic energies smaller than few hundreds eV. According to the adopted model, the time lags originated by the transport of the primary electrons through the thin foil are limited at few tens of femto-seconds.

Time correlation studies of secondary emission processes

CIULLO, Giuseppe;PILATI, Amadio;GUIDI, Vincenzo;
1996

Abstract

In the framework of the CRYSTAL proposal for the pro- duction and studies of ordered beams, a direct imaging di- agnostics of longitudinal structures of ordered ions is now under development. The fundamental elements of the di- agnostics device are a thin foil, an accelerating grid, an RF camera and an imaging detector. The thin carbon foil is responsible for the direct production of time correlated electrons upon the arrival of ordered ions. The accelerating grid (10-15 kV) is used to enhance the time correlation of the electrons against the angular spread of emission. The accelerating grid is followed by the RF camera, working at 2.465 GHz, for the transverse deflection of the correlated electrons. A detector with spatial resolution around 50 micron is foreseen after a drift length of 30 cm. The time response of the thin carbon foil was investigated with a Monte Carlo method with particular emphasis to electrons with kinetic energies smaller than few hundreds eV. According to the adopted model, the time lags originated by the transport of the primary electrons through the thin foil are limited at few tens of femto-seconds.
1996
0750303875
9780750303873
41.85.-p Electron optics; 41.85.Qg Particle beam analyzers; heavy-ion
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in SFERA sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11392/497895
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? ND
social impact