[spark chamber] n (1961): a device usu. used to detect the path of a high-energy particle that consists of a series of charged metal plates or wires separated by a gas (as neon) in which observable electric discharges follow the path of the particle
SPARK CHAMBER
Meaning of SPARK CHAMBER in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012