[Sneap] replacement klystron needed for linac

[Fred B. Bateman]

Dear SNEAPer's,

We are looking to replace or possibly repair our Thomson 2040E 
klystron on our CGR/MeV Sagittaire linac.  This is an S-band klystron 
operating at 8 MW.  The heater filament has gone bad and this 
particular model is no longer available.

I realize it's a long shot, but we are hoping to locate a used or new 
2040E which is no longer in service or is no longer needed.  Barring 
that, we are wondering if there's any possibility of repairing these 
klystrons by replacing the filament.  I understand they are encased 
in glass but perhaps this can be accessed and then resealed.

Any information would be most appreciated.

Thanks in advance,
Fred Bateman


Dr. Fred B. Bateman
NIST Radiation Interactions and Dosimetry
100 Bureau Dr. Stop 8460
Gaithersburg, MD  20899
ph: 301-975-5580
fax: 301-869-7682