Toshiba Optical Disk Stores 15000 CT Images

Haruo Kato; Kouichi Kita

doi:10.1117/12.964742

3 August 1984 Toshiba Optical Disk Stores 15000 CT Images

Haruo Kato, Kouichi Kita

Proceedings Volume 0515, Medical Images and Icons; (1984) https://doi.org/10.1117/12.964742
Event: Medical Images and Icons, 1984, Arlington, United States

Abstract

The Toshiba computed tomography scanner system TCT60A/500X is equipped with an optical disk data storage device for image data archiving. One optical disk stores 3.6 gigabytes of data, or 15000 CT images on both sides. When writing on an optical disk, one spiral of data pits is produced with a semiconductor laser by evaporating the Te-C film coated on the PMMA (poly(methyl methacrylate)) substrate. The pits are read by the same laser at a lower power along with CRC (cyclic redundancy code) error correction. A bit error rate of 1.0E-12 was attained. The IEEE488 interface bus (GPIB) is used to communicate with a host computer. The mean data transfer rate through the bus is 100 kilobytes per second.

Citation Download Citation

Haruo Kato and Kouichi Kita "Toshiba Optical Disk Stores 15000 CT Images", Proc. SPIE 0515, Medical Images and Icons, (3 August 1984); https://doi.org/10.1117/12.964742

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