Large-sized and highly radioactive 3H and 109Cd Langmuir-Blodgett films
Description
A device for the deposition of a radioactive Langmuir-Blodgett (LB) film was developed with the use of: (1) a modified horizontal lifting method, (2) an extremely shallow trough, and (3) a surface pressure-generating system without piston oil. It made a precious radioactive subphase solution repeatedly usable while keeping its radioactivity concentration as high as possible. Any large-size thin films can be prepared by just changing the trough size. Two monomolecular-layers of Y-type films of cadmium [3H] icosanoate and 109Cd icosanoate were built up as 3H and 109Cd β-sources for electron spectroscopy with intensities of 1.5 GBq (40 mCi) and 7.4 MBq (200 μCi), respectively, and a size of 65x200 mm2. Excellent uniformity of the distribution of deposited radioactivity was confirmed by autoradiography and photometry. (author)
Availability note (English)
MF available from INIS under the Report Number.Files
25061180.pdf
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Additional details
Publishing Information
- Imprint Pagination
- 29 p.
- Report number
- INS--1024
INIS
- Country of Publication
- Japan
- Country of Input or Organization
- Japan
- INIS RN
- 25061180
- Subject category
- S38: RADIATION CHEMISTRY, RADIOCHEMISTRY AND NUCLEAR CHEMISTRY;
- Descriptors DEI
- AUTORADIOGRAPHY; BETA SOURCES; CADMIUM COMPOUNDS; CADMIUM 109; ELECTRON SPECTROSCOPY; PHOTOMETRY; RADIOACTIVITY; THIN FILMS; TRITIUM; TRITIUM COMPOUNDS
- Descriptors DEC
- BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; CADMIUM ISOTOPES; ELECTRON CAPTURE RADIOISOTOPES; EVEN-ODD NUCLEI; FILMS; HYDROGEN COMPOUNDS; HYDROGEN ISOTOPES; INTERMEDIATE MASS NUCLEI; ISOTOPES; LIGHT NUCLEI; NUCLEI; ODD-EVEN NUCLEI; PARTICLE SOURCES; RADIATION SOURCES; RADIOISOTOPES; SPECTROSCOPY; YEARS LIVING RADIOISOTOPES