EXPERIMENTS ON GASEOUS ISOTOPE LAMP (in Japanese)
Journal Article
·
· Proc. Japan Conf. Radioisotopes
OSTI ID:4700418
The essential part of the lamp is a glass bulb (lamp bulb) coated with phosphor film on the inner surface, and filled with radioactive gas (Kr/sup 85/ or T). Advantages of these lamps are: no necessity for external power; and long life. The experimental bulb is made from non-browning glass, and its volume is about 3 cm/sup 3/. From a standpoint of luminosity factor, green light emissive phosphors are selected. ZnS: Cu is found most suitable because it shows no appreciable depreciation within experimental error against Co-60 gamma irradiation. hioreover, it has a high luminosity factor and quantum efficiency for electron. The relation between the brightness and the amount of radioactive gas is examined. Filling pressure of gas is varied up to 4 atm, and luminosity is measured intermittently at a fixed distance from the bulb. At about three atm, illumination or brightness saturates entirely. (T.F.H.)
- Research Organization:
- Mitsubishi Electric Mfg. Co., Ltd.
- NSA Number:
- NSA-17-029963
- OSTI ID:
- 4700418
- Journal Information:
- Proc. Japan Conf. Radioisotopes, Journal Name: Proc. Japan Conf. Radioisotopes Vol. Vol: 4th
- Country of Publication:
- Country unknown/Code not available
- Language:
- Japanese
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