Abstract
We present our new results from testing 15-mm-long virtual Frisch-grid CdZnTe detectors with a common-cathode readout for correcting pulse-height distortions. The array employs parallelepiped-shaped CdZnTe (CZT) detectors of a large geometrical aspect ratio, with two planar contacts on the top and bottom surfaces (anode and cathode) and an additional shielding electrode on the crystal's sides to create the virtual Frisch-grid effect. We optimized the geometry of the device and improved its spectral response. We found that reducing to 5 mm the length of the shielding electrode placed next to the anode had no adverse effects on the device's performance. At the same time, this allowed corrections for electron loss by reading the cathode signals to obtain depth information.
| Original language | English |
|---|---|
| Title of host publication | Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XII |
| DOIs | |
| Publication status | Published - 2010 Nov 8 |
| Externally published | Yes |
| Event | Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XII - San Diego, CA, United States Duration: 2010 Aug 2 → 2010 Aug 4 |
Publication series
| Name | Proceedings of SPIE - The International Society for Optical Engineering |
|---|---|
| Volume | 7805 |
| ISSN (Print) | 0277-786X |
Other
| Other | Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XII |
|---|---|
| Country | United States |
| City | San Diego, CA |
| Period | 10/8/2 → 10/8/4 |
Fingerprint
Keywords
- CdZnTe detectors
- crystal defects
- virtual Frisch-grid detectors
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering
Cite this
Array of virtual Frisch-grid CZT detectors with common cathode readout and pulse-height correction. / Bolotnikov, A. E.; Camarda, G. S.; Cui, Y.; Egarievwe, S. U.; Fochuk, P. M.; Fuerstnau, M.; Gul, R.; Hossain, A.; Jones, F.; Kim, Kihyun; Kopach, O. V.; Taggart, R.; Yang, G.; Ye, Z.; Xu, L.; James, R. B.
Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XII. 2010. 780504 (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 7805).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Array of virtual Frisch-grid CZT detectors with common cathode readout and pulse-height correction
AU - Bolotnikov, A. E.
AU - Camarda, G. S.
AU - Cui, Y.
AU - Egarievwe, S. U.
AU - Fochuk, P. M.
AU - Fuerstnau, M.
AU - Gul, R.
AU - Hossain, A.
AU - Jones, F.
AU - Kim, Kihyun
AU - Kopach, O. V.
AU - Taggart, R.
AU - Yang, G.
AU - Ye, Z.
AU - Xu, L.
AU - James, R. B.
PY - 2010/11/8
Y1 - 2010/11/8
N2 - We present our new results from testing 15-mm-long virtual Frisch-grid CdZnTe detectors with a common-cathode readout for correcting pulse-height distortions. The array employs parallelepiped-shaped CdZnTe (CZT) detectors of a large geometrical aspect ratio, with two planar contacts on the top and bottom surfaces (anode and cathode) and an additional shielding electrode on the crystal's sides to create the virtual Frisch-grid effect. We optimized the geometry of the device and improved its spectral response. We found that reducing to 5 mm the length of the shielding electrode placed next to the anode had no adverse effects on the device's performance. At the same time, this allowed corrections for electron loss by reading the cathode signals to obtain depth information.
AB - We present our new results from testing 15-mm-long virtual Frisch-grid CdZnTe detectors with a common-cathode readout for correcting pulse-height distortions. The array employs parallelepiped-shaped CdZnTe (CZT) detectors of a large geometrical aspect ratio, with two planar contacts on the top and bottom surfaces (anode and cathode) and an additional shielding electrode on the crystal's sides to create the virtual Frisch-grid effect. We optimized the geometry of the device and improved its spectral response. We found that reducing to 5 mm the length of the shielding electrode placed next to the anode had no adverse effects on the device's performance. At the same time, this allowed corrections for electron loss by reading the cathode signals to obtain depth information.
KW - CdZnTe detectors
KW - crystal defects
KW - virtual Frisch-grid detectors
UR - http://www.scopus.com/inward/record.url?scp=78049365220&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=78049365220&partnerID=8YFLogxK
U2 - 10.1117/12.861775
DO - 10.1117/12.861775
M3 - Conference contribution
AN - SCOPUS:78049365220
SN - 9780819483010
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XII
ER -