The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 26, 2005
Filed:
Sep. 19, 2002
John J. Simonetti, Hamilton Square, NJ (US);
Wolfgang Peter Ziegler, Hightstown, NJ (US);
Edward F. Durner, Jr., Cranbury, NJ (US);
Catherine Danielle Marie Busser, Lyons, FR;
John J. Simonetti, Hamilton Square, NJ (US);
Wolfgang Peter Ziegler, Hightstown, NJ (US);
Edward F. Durner, Jr., Cranbury, NJ (US);
Catherine Danielle Marie Busser, Lyons, FR;
Schlumberger Technology Corporation, Ridgefield, CT (US);
Abstract
The present invention provides scintillation material having good stability at continuous operating temperatures of at least 175° C. The scintillation material includes a cross linked copolymer with improved aromatic character that form a host plastic having properties of a thermoset polymer. The host plastic contains a primary fluorescent agent and a wavelength shifter. Preferably, the copolymer is comprised of a styrene derivative such as, for example, p-t-butylstyrene, and a higher melting point compound such as, for example, 4-vinylbiphenyl. In accordance with one aspect of the present invention, the scintillation material possesses properties of: good mechanical properties at high temperature (e.g., a Tg of about 180° C.); excellent light output (e.g., energy transfer efficiency); high hydrogen content for fast neutron detection; good optical transparency; and stable operation at temperature.