Radiant energy – Photocells; circuits and apparatus – Photocell controlled circuit
Reexamination Certificate
2006-03-07
2006-03-07
Porta, David (Department: 2878)
Radiant energy
Photocells; circuits and apparatus
Photocell controlled circuit
C250S2140VT
Reexamination Certificate
active
07009162
ABSTRACT:
A method and apparatus for providing a photomultiplier power supply having a transformer with multiple secondary windings forming cells that can provide voltage ratios to a photomultiplier element in which the ratios can be adjusted by the method of connection to the cell, by the number of turns in the transformer, or by a combination of both.
REFERENCES:
patent: 4409474 (1983-10-01), Howarth
patent: 4638164 (1987-01-01), Sonne et al.
patent: 4820914 (1989-04-01), Allen
patent: 4918314 (1990-04-01), Sonne
patent: 5021652 (1991-06-01), Arnold
patent: 5051572 (1991-09-01), Joseph et al.
patent: 5701004 (1997-12-01), Nakaya
patent: WO 9503623 (1995-02-01), None
Hamamatsu Photonics Catalog: Photomultiplier Tube, Chapter 7: How to Use Photomultiplier Tubes and Associated Circuits, Mar. 1994, pp. 126-164.
Haramboure Carlos E.
Koudelka Joseph C.
Baker Hughes Incorporated
Madan Mossman & Sriram P.C.
Monbleau Davienne
Porta David
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