Patent ID: 8878128

Claim:
A microchannel plate comprising a main body comprised of lead glass which exhibits electric insulation before a reduction treatment and exhibits electric conduction after the reduction treatment, wherein the main body comprises: a front surface; a back surface opposing the front surface; channel walls each of which emits secondary electrons and continuously extends along a predetermined direction from the front surface to the back surface, the each continuous channel wall having one end located at the front surface and the other end located at the back surface; first cladding glasses each of which has a hollow structure extending along the predetermined direction and has an inner wall functioning as the each continuous channel wall, the each first cladding glass having one end located at the front surface and the other end located at the back surface; and a second cladding glass which has through holes each extending along the predetermined direction and accommodating an associated one among the first cladding glasses, the each through hole having one end located at the front surface and the other end located at the back surface while an entire inner wall of the each through hole is completely covered by and in direct contact with the associated first cladding glass, and wherein in comparison before the reduction treatment, the first cladding glasses have an acid resistance higher than an acid resistance of the second cladding glass, so that after the reduction treatment a low-resistance microchannel plate is produced with an expanded dynamic range and excellent environment resistance.