scholarly journals SHiP: a new facility with a dedicated detector to search for new long-lived neutral particles and studying tau neutrino properties

2017 ◽  
Author(s):  
Antonia Di Crescenzo ◽  
Keyword(s):  
Tau Neutrino ◽  
Neutral Particles ◽  
New Facility

First H+ Charge-Exchange Images in the Stim.

1976 ◽  
Vol 34 ◽  
pp. 504-505
Author(s):  
Wm. H. Escovitz ◽  
T. R. Fox ◽  
R. Levi-Setti
Keyword(s):  
Charge Exchange ◽  
Neutral Component ◽  
Channel Electron Multiplier ◽  
Electron Multiplier ◽  
Neutral Particles ◽  
Charged Beam ◽  
Scanning Transmission ◽  
Contrast Mechanism ◽  
Ion Microscopy ◽  
Beam Component

Charge exchange, the neutralization of ions by electron capture as the ions traverse matter, is a well-known phenomenon of atomic physics which is relevant to ion microscopy. In conventional transmission ion microscopes, the neutral component of the beam after it emerges from the specimen cannot be focused. The scanning transmission ion microscope (STIM) enables the detection of this signal to make images. Experiments with a low-resolution 55 kV STIM indicate that the charge-exchange signal provides a new contrast mechanism to detect extremely small amounts of matter. In an early version of charge-exchange detection (fig. 1), a permanent magnet installed between the specimen and the detector (a channel electron multiplier) sweeps the charged beam component away from the detector and allows only the neutrals to reach it. When the magnet is removed, both charged and neutral particles reach the detector.

Channeling of neutral particles and photons in crystals

1992 ◽  
Vol 162 (9) ◽  
pp. 1 ◽  
Author(s):  
V.I. Vysotskii ◽  
R.N. Kuz'min
Keyword(s):  
Neutral Particles
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