PRODUCTION OF RADIOISOTOPES BY JRR-1 REACTOR. IV. TEST PRODUCTION OF Na- 24, K-42, Au-198, AND OTHERS

Journal Article · Sun Jan 01 04:00:00 EST 1961 · Proc. Japan Conf. Radioisotopes

OSTI ID:4692380

Mochizuki, T; Amano, H; Ito, T; Takeda, T; Tachikawa, K; Yokoshima, T; Kimura, K

The radioisotopes Na-24, K-42, Au-198, and others were produced on a trial basis in reactor JRR-1. Sodium carbonate, potassium carbonate, and gold wire were used as target materials. Irradiations were carried out for 2 or 15 hours intermittently in JRR-1 in a thermal flux of about 2 to 3 x 10/sup 11/ n/cm/ sup 2//sec. The target materials are enclosed in the polyethylene sheet and packed into the screw type capsules, made of 2S aluminum. As for chemical processing, the irradiated target materials are only dissolved in appointed concentrated hydrochloric acid in case of Na-24 and K-42, and in aqua regia in case of Au-198. The apparatus was simple, consisting of a glass dissolver, sampling pipettes, and solenoid valves or Teflon stopcocks, connected together by glass tubing. The production was carried out several times, the maximum activities of products were 50, 30, and 160 mC for Na-24, K-42, and Au-198, respectively, and their specific activity was approximates 25 mC per g of Na, approximates 2 mC per g of K, and approximates 200 mC per g of Au. (T.F.H.)

• Research Organization: Japan Atomic Energy Research Inst.
• NSA Number: NSA-17-029943
• OSTI ID: 4692380
• 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

Related Subjects

ALUMINUM
CAPSULES
CHEMICAL REACTIONS
COILS
GENERAL AND MISCELLANEOUS
GLASS
GOLD 198
HYDROCHLORIC ACID
IRRADIATION
LAYERS
MATERIALS TESTING
ORGANIC FLUORINE COMPOUNDS
POLYETHYLENES
POLYMERS
POTASSIUM 42
PRODUCTION
RADIOACTIVITY
RADIOISOTOPES
REACTORS
SODIUM 24
SODIUM CARBONATES
TARGETS
TEFLON
VALVES
WIRES