Searching for centers of point emissions on the cathode of a multiwire proportional chamber via atomic force microscopy

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Abstract

Spontaneous self-sustained currents on the cathodes of multiwire proportional chambers pose a problem for detectors in experiments at the Large Hadron Collider with prolonged exposure to radiation. The nature of spontaneous currents is studied using samples of a chamber cathode on which such currents occurred. A set of atomic force microscopy procedures for detecting and studying point emission centers is developed.

About the authors

G. E. Gavrilov

B. P. Konstantinov Petersburg Nuclear Physics Institute of National Research Center “Kurchatov Institute”

Author for correspondence.
Email: gavrilov_ge@pnpi.nrcki.ru
Russian Federation, Gatchina, 188350

М. E. Buzoverya

Russian Federal Nuclear Center — All-Russian Research Institute of Experimental Physics

Email: gavrilov_ge@pnpi.nrcki.ru
Russian Federation, Sarov, 607189

A. Yu. Arkhipov

Russian Federal Nuclear Center — All-Russian Research Institute of Experimental Physics

Email: gavrilov_ge@pnpi.nrcki.ru
Russian Federation, Sarov, 607189

A. A. Dzyuba

B. P. Konstantinov Petersburg Nuclear Physics Institute of National Research Center “Kurchatov Institute”

Email: gavrilov_ge@pnpi.nrcki.ru
Russian Federation, Gatchina, 188350

I. A. Karpov

Russian Federal Nuclear Center — All-Russian Research Institute of Experimental Physics

Email: gavrilov_ge@pnpi.nrcki.ru
Russian Federation, Sarov, 607189

O. E. Maev

B. P. Konstantinov Petersburg Nuclear Physics Institute of National Research Center “Kurchatov Institute”

Email: gavrilov_ge@pnpi.nrcki.ru
Russian Federation, Gatchina, 188350

M. V. Suyasova

B. P. Konstantinov Petersburg Nuclear Physics Institute of National Research Center “Kurchatov Institute”

Email: gavrilov_ge@pnpi.nrcki.ru
Russian Federation, Gatchina, 188350

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