Claims
- 1. A directional detector of gamma rays comprising a first strip of an electrical conductor of high atomic number, a second strip of an electrical conductor of a low atomic number disposed parallel to the first strip and bonded thereto in physical and electrical contact therewith, an electrode coaxial with the first and second strips, means for maintaining a vacuum inside the detector, means for completing an electrical circuit between the conducting strips and the electrode, and means for measuring the electric current in the circuit.
- 2. The apparatus of claim 1 wherein the first strip is lead and the second strip is graphite.
- 3. The apparatus of claim 1 wherein the vacuum is at least 1 micron of mercury.
CONTRACTUAL ORIGIN OF THE INVENTION
The invention described herein was made in the course of, or under, a contract with the UNITED STATES DEPARTMENT OF ENERGY.
US Referenced Citations (2)
Number |
Name |
Date |
Kind |
3699340 |
Hick et al. |
Oct 1972 |
|
4091288 |
LeVert et al. |
May 1978 |
|