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transistorized five decade scale
transistorized five decade scale

transistorized five decade scale

Inventory Number2012-1-0055
ClassificationGeiger Counter
Subject
    Maker Nucleonic Corporation of America founded 1949
    User Department of Physics, Harvard University founded 1884
    Cultural Region
      Place of Origin
        Place of Use
          Dimensions29.2 × 30.5 × 18.1 cm (11 1/2 × 12 × 7 1/8 in.)
          Material
            AccessoriesManual
            Signedetched and black filled on front panel, lower right corner: NUCLEONIC CORP. OF AMERICA / BROOKLYN, N.Y.
            Inscribedetched and black filled on front panel, upper right corner: MODEL RC-6A etched and black filled on front panel, center right: PULSE HEIGHT DISCRIMINATOR printed on face of meter: NCA painted in orange on top: PHYSICS 247
            FunctionIt is essential that a counting system be capable of accurate counting at high rates. Electromechanical registers can only accommodate counting rates up to 60 per sec, while many experiments demand recording data at rates of 30,000 counts/sec or more. This is accomplished by dividing the number of incoming pulses by a known factor (the scaling factor), so that a register will follow the reduced rate. The electronic device for performing this division is called a scaler.

            website.
            Historical AttributesUsed for instruction in the course PHYS 247 at the Department of Physics, Harvard University.
            geiger counter
            geiger counter
            Oxford Engineering Corporation
            Object number: 2012-1-0058
            motor driven x-ray time switch
            motor driven x-ray time switch
            Nucleonic Corporation of America
            Object number: 2012-1-0056
            Geiger counter
            Geiger counter
            Harvard Cyclotron Laboratory
            Date: circa 1948
            Object number: 2003-1-0307
            Geiger tube
            Geiger tube
            Kenneth T. Bainbridge
            Accessories: key to open the can is taped to the top.
            Object number: 2004-1-0421
            Geiger counter for detecting cosmic rays
            Geiger counter for detecting cosmic rays
            Marion Electrical Instrument Company
            Date: circa 1920
            Accessories: Laboratory built Geiger counter (RS1072a).
            Object number: RS1072
            laboratory built Geiger counter
            laboratory built Geiger counter
            Date: circa 1920
            Accessories: Geiger counter for detecting cosmic rays (RS1072).
            Object number: RS1072a
            2 geigerscopes
            2 geigerscopes
            Object number: 1998-1-1899
            Decade counter, type DEC-100
            Decade counter, type DEC-100
            Thornton Associates, Inc.
            Date: circa 1970
            Object number: 2006-1-0071
            six-decade counter / scaler unit
            six-decade counter / scaler unit
            Radiation Instrument Development Laboratory
            Date: 1960-1965
            Object number: 2003-1-0301
            decade counter, 0-99
            decade counter, 0-99
            Wilcox Pratt Overbeck
            Date: 1941
            Object number: RS1153
            transistorized cesium beam atomic clock
            transistorized cesium beam atomic clock
            National Company, Inc.
            Date: 1970
            Object number: RS1502c
            proportional counter converter & box of parts
            proportional counter converter & box of parts
            Nuclear Measurements Corporation
            Date: circa 1960
            Accessories: 5 baseplates, 1 ?, and 2 ? all in gray box next to instrument.
            Object number: 2006-1-0007