LARGE-SIZE AND HIGHLY RADIOACTIVE H-3 AND CD-109 LANGMUIR-BLODGETT-FILMS

Authors
SHIBATA S KAWAKAMI H KATO S NISIMURA K OHSHIMA T SUGAI I UKAI K YASUDA T MORIKAWA N NOGAWA N HAGA K SHOJI Y NAGAFUCHI T NAITO F SUZUKI T SIGETA M IWAHASHI M HISATAKE K FUJIOKA M MATSUDA T
Citation
S. Shibata et al., LARGE-SIZE AND HIGHLY RADIOACTIVE H-3 AND CD-109 LANGMUIR-BLODGETT-FILMS, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 350(1-2), 1994, pp. 263-274
Citations number
35
Categorie Soggetti
Nuclear Sciences & Tecnology","Physics, Particles & Fields","Instument & Instrumentation",Spectroscopy
Journal title
Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment → ACNP
ISSN journal
01689002
Volume
350
Issue
1-2
Year of publication
1994
Pages
263 - 274
Database
ISI
SICI code
0168-9002(1994)350:1-2<263:LAHRHA>2.0.ZU;2-4
Abstract
A device for the deposition of a radioactive Langmuir-Blodgett (LB) fi lm was developed with the use of: (1) a modified horizontal lifting me thod, (2) an extremely shallow trough, and (3) a surface pressure-gene rating system without piston oil. It made a precious radioactive subph ase solution repeatedly usable while keeping its radioactivity concent ration as high as possible. Any large-size thin films can be prepared by just changing the trough size. Two monomolecular-layers of Y-type f ilms of cadmium [H-3] icosanoate and Cd-109 icosanoate were built up a s H-3 and Cd-109 beta-sources for electron spectroscopy with intensiti es of 1.5 GBq (40 mCi) and 7.4 MBq (200 muCi), respectively, and a siz e of 65 x 200 mm2. Excellent uniformity of the distribution of deposit ed radioactivity was confirmed by autoradiography and photometry.