Permanent polarization in pyroelectric TGS in detectors due to x-rays
Abstract
The dielectric constant, pyroelectric coefficient, and loss tangent of triglycine sulphate (TGS) crystals that had been poled and subsequently irradiated with x-rays are presented as a function of x-ray exposure and temperature. The results are compared with similar measurements made on poled Co 60 gamma irradiated TGS. An estimated x-ray dosage of 1.5-2.0 × 10 6Rmin-1 for 1-2 min gave equivalent results to 2.3 Mr of Co 60 gamma rays in achieving optimum non-ferroelectric pyroelectric in TGS ir detectors.
- Publication:
-
Optics Laser Technology
- Pub Date:
- February 1977
- DOI:
- 10.1016/0030-3992(77)90045-7
- Bibcode:
- 1977OptLT...9...17G
- Keywords:
-
- Defocusing;
- Diffraction Patterns;
- Photographic Recording;
- Speckle Patterns;
- Structural Analysis;
- Topology;
- Coherent Light;
- Elastic Deformation;
- Plastic Deformation;
- Structural Engineering;
- Instrumentation and Photography