Plastic scintillators discriminating alpha-rays from beta rays emitted by a radioactive medium and method for discriminating alpha-rays from beta-rays using said scintillators

Abstract

A plastic scintillator discriminating alpha-rays from beta-rays emitted by a radioactive medium, the plastic scintillator including a plastic scintillator material capable of discriminating an alpha radiation from a beta radiation by a shape of a scintillation pulse that the alpha and the beta radiations create, having a ratio of a surface S able to be in contact with the radioactive medium to a total volume V of the plastic scintillator (S/V) greater than or equal to 7 cm−1 and the surface S able to be in contact with the radioactive medium greater than or equal to 10 cm2. A method of preparing the plastic scintillator, including: shaping the plastic scintillation material into a monolith; and machining, cutting the monolith into a final shape of the plastic scintillator. A detection device, including: the plastic scintillator; and a display device enabling an operator to read a level of ambient radioactivity.

Dependencies are inferred from the claim text.