X-ray or gamma ray systems or devices – Beam control
Patent
1989-11-27
1991-02-26
Howell, Janice A.
X-ray or gamma ray systems or devices
Beam control
378160, 328235, G21K 100, G21K 104, H05H 700
Patent
active
049967002
ABSTRACT:
Irradiation equipment comprising a beam duct disposed along the synchrotron radiation beam, and a multistage axial flow turbine installed in the beam duct. The multistage axial flow turbine comprises a plurality of stators and rotors arranged alternately in an axial direction. Each stator has vanes and a beam transmission hole formed through the vane region. Each rotor has vanes and gaps between adjacent vanes. A plurality of beam transmission holes are aligned in a direction of the synchrotron radiation beam, and a plurality of gaps of the rotors are intermittently aligned in the direction of the synchrotron radiation beam, whereby the synchrotron radiation beam can intermittently penetrate through the multistage axial flow turbine through the beam transmission holes and gaps with rotation of the rotor.
REFERENCES:
patent: 4748646 (1988-05-01), Osada et al.
patent: 4769829 (1988-09-01), Webb et al.
Nuclear Instruments and Methods in Physics Research, vol. 222, 1984, pp. 345-346, Amsterdam, NL; R. Tatchyn et al.: "A UHV Chopper Design for SSRL".
Nuclear Instruments and Methods in Physics Research, vol. A-246, 1986, pp. 41-44, Amsterdam, NL; E. S. Gluskin et al.: "First Experiments with SR from the 75 KG Superconducting Wiggler on the VEPP-2M Storage Ring".
European Search Report--EP 89 12 2557.
Horiuchi Kei
Yamashita Yoshimi
Fujitsu Limited
Howell Janice A.
Wong Don
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