Published November 1985
| Version v1
Report
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The device for the poloidal profile measurement of H sub(α)-line emission by photodiode and its calibration
Creators
- 1. Japan Atomic Energy Research Inst., Naka, Ibaraki. Naka Fusion Research Establishment
Description
The device for the poloidal profile measurement of H sub(α)-line emission has been equipped by photodiode (S1225-5BQ by HAMAMATSU PHOTONICS K.K.) and operational amplifier. The absolute efficiency was calibrated by using He-Ne laser. The device is constructed by 44 channels. The fast type of 8 channels is for the monitor of pellet abration profile. The slow type of 36 channels is for the poloidal profile measurement of H sub(α)-line emission from JFT-2M plasma. The rise time of the fast type and the slow type is about 2.8 μsec and about 350 μsec, respectively. The absolute efficiency of the fast type and the slow type is 72.7 V/mW and 18.2 V/μW, respectively. (author)
Availability note (English)
MF available from INIS under the Report Number.Files
17056420.pdf
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Additional details
Publishing Information
- Imprint Pagination
- 25 p.
- Report number
- JAERI-M--85-192
INIS
- Country of Publication
- Japan
- Country of Input or Organization
- Japan
- INIS RN
- 17056420
- Subject category
- S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
- Descriptors DEI
- CALIBRATION; FUEL PELLETS; HELIUM-NEON LASERS; HYDROGEN; OPERATIONAL AMPLIFIERS; OPTICAL SYSTEMS; PHOTODIODES; PLASMA; PLASMA DIAGNOSTICS; PULSE RISE TIME; TOKAMAK DEVICES
- Descriptors DEC
- AMPLIFIERS; CLOSED PLASMA DEVICES; ELECTRONIC EQUIPMENT; ELEMENTS; EQUIPMENT; GAS LASERS; LASERS; NONMETALS; SEMICONDUCTOR DEVICES; SEMICONDUCTOR DIODES; THERMONUCLEAR DEVICES; TIMING PROPERTIES