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AssigneeHamamatsu Photonics K.K.
InventorsHiroyuki Sugiyama, Keisuke Inoue, Hitoshi Kishita, Hideki Shimoi, Hiroyuki Kyushima
Estimating the term…
A photomultiplier tube 1 is an electron tube comprising an envelope 5 including a frame 3b having at least one end part formed with an opening and an upper substrate 2 airtightly joined to the opening, and a photocathode 6 contained within the envelope 5, the photocathode 6 emitting a photoelectron into the envelope 5 in response to light incident thereon from the outside; wherein multilayer metal films 10b, 10a each constituted by a metal film made of titanium, a metal film made of platinum, and a metal film made of gold laminated in this order are formed at the opening and the joint part between the upper substrate 2 and opening; and wherein the frame 3b and upper side substrate 2 are joined to each other by holding a joint layer 14 containing indium between the respective multilayer metal films 10b, 10a.
An electron tube comprising:
A method of making an electron tube, including a photocathode positioned within an envelope and emitting a photoelectron into the envelope in response to light incident onto the photocathode from the outside the envelope, and a multiplier part positioned within the envelope and multiplying the photoelectron, the method comprising the steps of:
Dependencies are inferred from the claim text.