Vacuum tube

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Ingenium, 1997.0800.001
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OBJECT TYPE: END-ON/14 PIN
DATE: 1970
ARTIFACT NUMBER: 1997.0800.001

MANUFACTURER: Unknown
MODEL: Unknown
LOCATION: England

More Information

General Information

Serial #: 4261002
Part Number: 1
Total Parts: 1
AKA: N/A
Patents: N/A
General Description: GLASS, METAL AND SYNTHETIC COMPONENTS.

Dimensions

Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.

Length: 14.5 cm
Width: 5.5 cm
Height: N/A
Thickness: N/A
Weight: N/A
Diameter: N/A
Volume: N/A

Lexicon

Group: Physics
Category: Light & electromagnetic radiation
Sub-Category: N/A

Manufacturer

AKA: Unknown
Country: England
State/Province: Unknown
City: Unknown

Context

Country: Canada
State/Province: Quebec
Period: THIS TUBE PRESUMABLY USED C. 1960S- MID 1970S.
Canada: USED BY DR. ROGER GHYS FOR REGULATING RADIATION DOSES TO BE GIVEN TO HIS PATIENTS AND FOR MEASURING RADIOACTIVITY IN NUCLEAR MEDICINE PROCEDURES. THIS WAS FOR LIQUID SCINTILLATION COUNTING OR IN CONJUNCTION WITH SODIUM IODIDE CRYSTALS. (REF. 1)
Function: TO DETECT LOW LIGHT LEVEL EMISSIONS.
Technical: EXAMPLE OF TYPICAL PHOTOMULTIPLIER TUBE, ONCE COMMON IN LOW LIGHT LEVEL APPLICATIONS IN ASTRONOMY, MEDICINE & PHYSICS. DEVELOPED IN THE 1920-30S TO REPLACE SELENIUM DETECTORS, THEIR USE PEAKED DURING THE 1960S-1970S. PHOTOMULTIPLIER TUBES WERE REPLACED BY MORE EFFICIENT COMPUTER CONTROLLED CCD DETECTORS IN THE 1980S.(REF.1
Area Notes: Unknown

Details

Markings: " MADE IN ENGLAND " printed on tube, on upper edge. "4261002" appears on tube, near base. "4261002" incised on base; pin numbers 1 through 14 appear in raised print on base.
Missing: NONE.
Finish: CLEAR GLASS TUBE HAS BROWN SYNTHETICBASE, AND SILVER METAL COATING AROUND SIDES OF TUBE TOP. TOP OF GLASS TUBE APPEARS TO HAVE SMOKED FINISH. SILVER METAL AND WHITE SYNTHETIC (OR POSSIBLY PORCELAIN?) COMPONENTS ARE VISIBLE WITHIN.
Decoration: N/A

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Unknown Manufacturer, Vacuum tube, before 1970, Artifact no. 1997.0800, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1997.0800.001/

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