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Title:
高密度電子装置の冷却方法
Document Type and Number:
Japanese Patent JP4429723
Kind Code:
B2
Abstract:
For nuclear imaging of a subject injected with a radioactive isotope, each detector array (18) is associated with event analyzer circuitry (64) and detector array signals due to gamma ray emissions indicative of nuclear decay are processed and reconstructed into an image of the subject anatomy. Cadmium zinc telluride (CZT) crystals (20) outputs are amplified by complex low−noise integrated preamplifier circuits (P−ASIC 60) dissipating 300−500 mW each. Additionally, low−noise linear voltage regulators (66) providing regulated DC power to assure delivery of clean power to the P−ASIC (60), dissipate 150−250 mW each. In order to facilitate cooling of electrical components (60,66) which account for most of the dissipated power on circuit boards (62), the boards (62) are arranged parallel to each other and extend perpendicularly away from the detector array (18) to provide channels between the boards (62) through which cooling air is drawn by an array of fans.

Inventors:
Jerome Jay Griesmer
Barry Decline
Application Number:
JP2003547994A
Publication Date:
March 10, 2010
Filing Date:
November 21, 2001
Export Citation:
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Assignee:
Koninklijke Philips Electronics N.V.
International Classes:
G01T1/161; G01T1/20; G01T1/24; G01T7/00; H01L27/14; H01L31/09; H05K7/20
Domestic Patent References:
JP63180010U
Foreign References:
US5742060
US4090080
US4571495
Attorney, Agent or Firm:
Tadahiko Ito