Collection:
Juneau—Douglas City Museum
Object ID:
2007.22.058AB
Accession#:
2007.22
Credit Line:
Transferred from the U.S. Bureau of Land Management.
Object Name:
Counter, Scintillation
Title:
Scintillometer
Year Range from:
1950
Year Range to:
1959
Description:
Scintillation Counter.
Used to detect and measure radioactivity by detecting gamma rays; Works similar to but more sensitive than a Geiger counter.
A: Instrument
Rectangular instrument with wooden casing. On the back there is metal grating with hooks around which electrical plug is wrapped around. The plug is attached to the instrument via a hole in the bottom of the back. There are four other knobs along the back bottom and another plug which the hand held sensor is attached to the instrument. On the top there is a silver metal handle. On the left side there is a clip that the sensor is held in. The front of the instrument is slanted at about a 45 degree angle. Angle goes about 2/3 of the way down. There are four knobs on slant (two of left and two on right). In between the knob, there is a "counts per minute" meter. On the lower third of the face (straight part), there are two more knobs. It also says "Laboratory Monitor / Tracer Lab, inc."
B: Hand Held Sensor
Hand sized silver metal tube with gold metal cover and ring towards base. Has wire coming out of base that plugs into instrument.
Used to detect and measure radioactivity by detecting gamma rays; Works similar to but more sensitive than a Geiger counter.
A: Instrument
Rectangular instrument with wooden casing. On the back there is metal grating with hooks around which electrical plug is wrapped around. The plug is attached to the instrument via a hole in the bottom of the back. There are four other knobs along the back bottom and another plug which the hand held sensor is attached to the instrument. On the top there is a silver metal handle. On the left side there is a clip that the sensor is held in. The front of the instrument is slanted at about a 45 degree angle. Angle goes about 2/3 of the way down. There are four knobs on slant (two of left and two on right). In between the knob, there is a "counts per minute" meter. On the lower third of the face (straight part), there are two more knobs. It also says "Laboratory Monitor / Tracer Lab, inc."
B: Hand Held Sensor
Hand sized silver metal tube with gold metal cover and ring towards base. Has wire coming out of base that plugs into instrument.
Notes:
A Scintillation Detector is a device for detecting and measuring radiation by means of tiny visible flashes produced by the radiation when it strikes a sensitive substance known as a phosphor. Phosphors used in scintillation counters include zinc, sulfide, sodium iodide, various liquids, and organic phosphors. The individual flashes are caused by absorption and remission of radiation by the phosphor. They may be amplified by photomultiplier devices or amplified and converted to an electrical signal by photoemissive substances. Scintillate counters may be used to detect the various types of radioactivity (alpha, beta, and gamma rays), cosmic rays, and various elementary particles.
People:
ing
Search Terms:
JMIC
Assaying
T&E
Mining
Prospecting
Assaying
T&E
Mining
Prospecting
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2007.22.058A-B
2007.22.058A-B