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Title: Rotatable superconducting cyclotron adapted for medical use

Abstract

A superconducting cyclotron (10) rotatable on a support structure (11) in an arc of about 180.degree. around a pivot axis (A--A) and particularly adapted for medical use is described. The rotatable support structure (13, 15) is balanced by being counterweighted (14) so as to allow rotation of the cyclotron and a beam (12), such as a subparticle (neutron) or atomic particle beam, from the cyclotron in the arc around a patient. Flexible hose (25) is moveably attached to the support structure for providing a liquified gas which is supercooled to near 0.degree. K. to an inlet means (122) to a chamber (105) around superconducting coils (101, 102). The liquid (34) level in the cyclotron is maintained approximately half full so that rotation of the support structure and cyclotron through the 180.degree. can be accomplished without spilling the liquid from the cyclotron. With the coils vertically oriented, each turn of the winding is approximately half immersed in liquid (34) and half exposed to cold gas and adequate cooling to maintain superconducting temperatures in the section of coil above the liquid level is provided by the combination of cold gas/vapor and by the conductive flow of heat along each turn of themore » winding from the half above the liquid to the half below.« less

Inventors:
 [1];  [2];  [1];  [3]
  1. (East Lansing, MI)
  2. (Williamston, MI)
  3. (Berkeley, CA)
Issue Date:
Research Org.:
Michigan State Univ., East Lansing, MI (United States)
OSTI Identifier:
865388
Patent Number(s):
4507616
Assignee:
Board of Trustees operating Michigan State University (East Lansing, MI) OSTI
DOE Contract Number:  
AC02-80ER10579
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
rotatable; superconducting; cyclotron; adapted; medical; 10; support; structure; 11; 180; degree; pivot; axis; a-a; particularly; described; 13; 15; balanced; counterweighted; 14; allow; rotation; beam; 12; subparticle; neutron; atomic; particle; patient; flexible; 25; moveably; attached; providing; liquified; gas; supercooled; near; inlet; means; 122; chamber; 105; coils; 101; 102; liquid; 34; level; maintained; approximately; half; accomplished; spilling; vertically; oriented; winding; immersed; exposed; cold; adequate; cooling; maintain; temperatures; section; coil; provided; combination; vapor; conductive; flow; heat; below; superconducting coils; liquified gas; superconducting temperatures; superconducting coil; particularly adapted; vertically oriented; particle beam; liquid level; support structure; cold gas; inlet means; conducting coils; superconducting temperature; superconducting cyclotron; pivot axis; /315/250/313/505/600/

Citation Formats

Blosser, Henry G., Johnson, David A., Riedel, Jack, and Burleigh, Richard J. Rotatable superconducting cyclotron adapted for medical use. United States: N. p., 1985. Web.
Blosser, Henry G., Johnson, David A., Riedel, Jack, & Burleigh, Richard J. Rotatable superconducting cyclotron adapted for medical use. United States.
Blosser, Henry G., Johnson, David A., Riedel, Jack, and Burleigh, Richard J. Tue . "Rotatable superconducting cyclotron adapted for medical use". United States. https://www.osti.gov/servlets/purl/865388.
@article{osti_865388,
title = {Rotatable superconducting cyclotron adapted for medical use},
author = {Blosser, Henry G. and Johnson, David A. and Riedel, Jack and Burleigh, Richard J.},
abstractNote = {A superconducting cyclotron (10) rotatable on a support structure (11) in an arc of about 180.degree. around a pivot axis (A--A) and particularly adapted for medical use is described. The rotatable support structure (13, 15) is balanced by being counterweighted (14) so as to allow rotation of the cyclotron and a beam (12), such as a subparticle (neutron) or atomic particle beam, from the cyclotron in the arc around a patient. Flexible hose (25) is moveably attached to the support structure for providing a liquified gas which is supercooled to near 0.degree. K. to an inlet means (122) to a chamber (105) around superconducting coils (101, 102). The liquid (34) level in the cyclotron is maintained approximately half full so that rotation of the support structure and cyclotron through the 180.degree. can be accomplished without spilling the liquid from the cyclotron. With the coils vertically oriented, each turn of the winding is approximately half immersed in liquid (34) and half exposed to cold gas and adequate cooling to maintain superconducting temperatures in the section of coil above the liquid level is provided by the combination of cold gas/vapor and by the conductive flow of heat along each turn of the winding from the half above the liquid to the half below.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1985},
month = {1}
}

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