Study of inelastic nuclear interactions of 400 GeV/c protons in bent silicon crystals for beam steering purposes
- Scandale, W.
- Andrisani, F.
- Arduini, G.
- Cerutti, F.
- Garattini, M.
- Gilardoni, S.
- Masi, A.
- Mirarchi, D.
- Montesano, S.
- Petrucci, S.
- Redaelli, S.
- Schoofs, P.
- Rossi, R.
- Breton, D.
- Chaumat, D.
- Dubos, S.
- Maalmi, J.
- Natochii, A.
- Puill, V.
- Stocchi, A.
- Bagli, E.
- Bandiera, L.
- Germogli, G.
- Guidi, V.
- Mazzolari, A.
- Murtas, F.
- Addesa, F.
- Cavoto, G.
- Iacoangeli, F.
- Galluccio, F.
- Afonin, A. G.
- Chesnokov, Yu. A.
- Durum, A. A.
- Maisheev, V. A.
- Sandomirskiy, Yu. E.
- Yanovich, A. A.
- Kovalenko, A. D.
- Taratin, A. M.
- Smirnov, G. I.
- Desinov, A. S.
- Gavrikov, Yu. A.
- Ivanov, Yu. M.
- Lapina, L. P.
- Malyarenko, L. G.
- Skorobogatov, V. V.
- Fulcher, J.
- James, T.
- Hall, G.
- Pesaresi, M.
- Raymond, M.
DOIAbstract
Inelastic nuclear interaction probability of 400 GeV/c protons interacting with bent silicon crystals was investigated, in particular for both types of crystals installed at the CERN Large Hadron Collider for beam collimation purposes. In comparison to amorphous scattering interaction, in planar channeling this probability is ∼ 36 % for the quasi-mosaic type (planes (111)), and ∼ 27 % for the strip type (planes (110)). Moreover, the absolute inelastic nuclear interaction probability in the axial channeling orientation, along the ⟨ 110 ⟩ axis, was estimated for the first time, finding a value of 0.6 % for a crystal 2 mm long along the beam direction, with a bending angle of 55 μ rad. This value is more than two times lower with respect to th...
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