X-ray or gamma ray systems or devices – Beam control – Window
Patent
1991-02-27
1992-11-03
Porta, David P.
X-ray or gamma ray systems or devices
Beam control
Window
378140, 228194, G21K 100
Patent
active
051611791
ABSTRACT:
A beryllium window comprises a disk-shaped beryllium plate containing beryllium as an essential element, a welding film partially merged into the outer peripheral portion of the beryllium plate and formed of a substance having at least one element selected from the group consisting of silver, gold, nickel and copper, and a reinforcing unit of a stainless steel, and the welding film is partially merged into the reinforcing unit, wherein the welding film fixes the beryllium plate to the reinforcing unit through diffusion welding so that the beryllium window is less deformative against heat stress.
REFERENCES:
patent: 2394984 (1946-02-01), Claussen
patent: 3222558 (1965-12-01), Hoeschen
patent: 3608490 (1971-09-01), O'Keefe
patent: 3878417 (1975-04-01), Eberlein
patent: 4431709 (1984-02-01), Bronnes et al.
patent: 5017245 (1991-05-01), Suzuki et al.
"Metals Handbook Ninth Ed.-vol. 6 Welding, Brazing, and Soldering", pp. 677-679, no date.
Suzuki Kunio
Tomita Nobuaki
Porta David P.
Yamaha Corporation
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