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proton beam aperture
proton beam aperture

proton beam aperture

Date2001
Inventory Number2002-1-0030a
ClassificationAperture
Subject
    Maker Elliot Hammerman
    Cultural Region
      Place of Use
        Dimensions27.9 lb. (12.7 kg)
        Overall - Storage: 19 x 19 x 4.4 cm (7 1/2 x 7 1/2 x 1 3/4 in.)
        the instrument: 19 x 19 x 19 x 4.4 cm (7 1/2 x 7 1/2 x 7 1/2 x 1 3/4 in.)
        Material
          DescriptionThe brass aperture has an irregular hole drilled through the center. Holes are drilled on the faces in order to mate the aperture with the range compensator (2002-1-0030b).

          Along the side, it is marked in purple ink, "PA1/ WED 12/12" (twice). A green circular sticker is scotch-taped to the side with the label, "Alt / 10/21/01." There is also a cross.

          On the front face, there is an obliterated inscription and the engraved markings, "PA1 T[hole]P WED 12 FA." PA1 stands for Posterior Anterior One.
          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 2001.
          proton beam aperture
          proton beam aperture
          Elliot Hammerman
          Date: 2002
          Object number: 2002-1-0028a
          proton beam aperture
          proton beam aperture
          Elliot Hammerman
          Date: 2002
          Object number: 2002-1-0027
          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: 2001
          Object number: 2002-1-0030b
          proton beam range compensator
          proton beam range compensator
          Elliot Hammerman
          Date: 2002
          Object number: 2002-1-0028b
          proton beam range compensator
          proton beam range compensator
          Elliot Hammerman
          Date: 2002
          Object number: 2002-1-0029b
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          beam compass
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          Date: circa 1799
          Accessories: original curatorial cards (in instrument file); typed draft of curatorial card on white paper from January 1967 (in instrument file); two black and white photos (in instrument file)
          Object number: 0066a