Apparatus for proton radiography

Details Apparatus for proton radiography Apparatus for proton radiography

1975-11-14

1976-10-12

Borchelt, Archie R.

Radiant energy

Inspection of solids or liquids by charged particles

250358R, 328235, G01N 2302

Patent

active

039860264

ABSTRACT:
An apparatus for effecting diagnostic proton radiography of patients in hospitals comprises a source of negative hydrogen ions, a synchrotron for accelerating the negative hydrogen ions to a predetermined energy, a plurality of stations for stripping extraction of a radiography beam of protons, means for sweeping the extracted beam to cover a target, and means for measuring the residual range, residual energy, or percentage transmission of protons that pass through the target. The combination of information identifying the position of the beam with information about particles traversing the subject and the back absorber is performed with the aid of a computer to provide a proton radiograph of the subject. In an alternate embodiment of the invention, a back absorber comprises a plurality of scintillators which are coupled to detectors.

REFERENCES:
patent: 3139591 (1964-06-01), Rheaume et al.
patent: 3370167 (1968-02-01), Sterk
patent: 3576997 (1971-05-01), Slavin
proton Radiography in Tumor Detection, by Steward et al., from Science, vol. 179 (1973), pp. 913, 914.

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