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proton beam aperture
proton beam aperture

proton beam aperture

Date2002
Inventory Number2002-1-0028a
ClassificationAperture
Subject
    Maker Elliot Hammerman
    Dimensions8.9 x 8.9 x 3.8 cm (3 1/2 x 3 1/2 x 1 1/2 in.)
    Material
      DescriptionThe brass aperture has an irregular hole drilled through the center with a diameter ranging from 2.5 to 3.0 cm. Holes are drilled on the faces in order to mate the aperture with the range compensator (2002-1-0028b).

      Along the side of the cylinder there are markings in black ink: "DE / R / [partly obliterated letters and numerals]" and "RL1." There is also a cross marked in line with a scratched line on the front face of the cylinder.

      The front face is marked with obliterated letters and "RL1 T[hole]P WED 1-23." This refers to the orientation of the treatment (Right Lateral One) and the date.

      A green circular sticker is scotch taped on the side and labeled, "1/23/02 / RAS." This refers to the patient and date of treatment.
      In Collection(s)
      Signedunsigned
      FunctionA brass aperture was used to shape the transverse cross-section of the proton beam used to treat a tumor or other tissue in a medical patient.
      Historical AttributesThis aperture was used to treat a tumor in a patient at the Harvard Cyclotron Laboratory in 2002.
      proton beam aperture
      proton beam aperture
      Elliot Hammerman
      Date: 2002
      Object number: 2002-1-0029a
      proton beam range compensator
      proton beam range compensator
      Elliot Hammerman
      Date: 2002
      Object number: 2002-1-0028b
      proton beam aperture
      proton beam aperture
      Elliot Hammerman
      Date: 2002
      Object number: 2002-1-0027
      proton beam aperture
      proton beam aperture
      Elliot Hammerman
      Date: 2001
      Object number: 2002-1-0030a
      proton beam range compensator
      proton beam range compensator
      Elliot Hammerman
      Date: 2002
      Object number: 2002-1-0029b
      proton beam range compensator
      proton beam range compensator
      Elliot Hammerman
      Date: 2001
      Object number: 2002-1-0030b
      control console from Harvard Cyclotron Laboratory
      control console from Harvard Cyclotron Laboratory
      Harvard Cyclotron Laboratory
      Date: 1947-2002
      Object number: 2003-1-0291
      Green wooden storage box,containing misc. coils, variometers
      Green wooden storage box,containing misc. coils, variometers
      Date: late 19th-early 20th Century
      Object number: RS0168
      Image Not Available for Polaroid SX-70 Land camera shown off at stockholder's meeting, 1973
      Polaroid SX-70 Land camera shown off at stockholder's meeting, 1973
      Polaroid Corporation
      Date: 1973
      Object number: 2004-1-0515
      Green wooden storage box containing 49 terminial strips and assemblies for radio
      Green wooden storage box containing 49 terminial strips and assemblies for radio
      Date: 1890-1930
      Object number: RS0174
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      model of two-storey gantry
      Andreas Koehler
      Date: circa 1977
      Object number: 2003-1-0279
      Hammond multiplex typewriter
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      Hammond Typewriter Company
      Date: circa 1923
      Accessories: four Hammond type shuttles for different type faces, each with a wooden storage box; four laminated paper rectangles with symbol placement guide; instruction book, instruction sheets, advertisements, and correspondence (in object file)
      Object number: 1996-1-0373