Invention Grant
- Patent Title: Use of aluminum nitride to obtain temperature measurements in a high temperature and high radiation environment
- Patent Title (中): 使用氮化铝可在高温高辐射环境中获得温度测量
-
Application No.: US14186244Application Date: 2014-02-21
-
Publication No.: US09322720B2Publication Date: 2016-04-26
- Inventor: Bernard R. Wernsman , Raymond J. Blasi , Bernhard R. Tittman , David A. Parks
- Applicant: United States Department of Energy
- Applicant Address: US DC Washington
- Assignee: U.S. Department of Energy
- Current Assignee: U.S. Department of Energy
- Current Assignee Address: US DC Washington
- Agent Robert T. Burns; John T. Lucas
- Main IPC: G01K11/22
- IPC: G01K11/22 ; G01N29/24
Abstract:
An aluminum nitride piezoelectric ultrasonic transducer successfully operates at temperatures of up to 1000° C. and fast (>1 MeV) neutron fluencies of more than 1018 n/cm2. The transducer comprises a transparent, nitrogen rich aluminum nitride (AlN) crystal wafer that is coupled to an aluminum cylinder for pulse-echo measurements. The transducer has the capability to measure in situ gamma heating within the core of a nuclear reactor.
Public/Granted literature
Information query
