Radiant energy – Invisible radiant energy responsive electric signalling – With or including a luminophor
Patent
1994-01-18
1995-06-13
Fields, Carolyn E.
Radiant energy
Invisible radiant energy responsive electric signalling
With or including a luminophor
250368, 2504861, 128659, G01T 1203
Patent
active
054245460
ABSTRACT:
It is an objective of the present invention to provide a scintillation counter that can measure the intensity of only .beta. rays. Two scintillation fibers (11 and 12) which emit different wavelengths are provided in series to a probe (10). One of the scintillation fibers (12) is covered with a .beta.-ray shield. The optical signal generated at the probe (10) is transmitted through the optical fiber (20) and separated by the light separating element (31). One portion of the separated optical signal is incident on a light detector (32) and the intensity of the incident light detected. The other portion of the separated optical signal is incident on a light detector (33) and the intensity of the incident light detected.
REFERENCES:
patent: 5008546 (1991-04-01), Mazziotta et al.
patent: 5087818 (1992-02-01), Bellian et al.
patent: 5313065 (1994-05-01), Reed
J. E. Litton et al., "Transcutaneous Measurement of the Arterial Input Function in Positron Emission Tomography," IEEE Transactions on Nuclear Science, vol. 37, No. 2, Apr. 1990.
Okada Hiroyuki
Yamashita Takaji
Fields Carolyn E.
Hamamatsu Photonics K.K.
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