Artículos de revistas
Purification And Growth Of Pbi2 Crystals: Dependence Of The Radiation Response On The Pbi2 Crystal Purity
Registro en:
Ieee Transactions On Nuclear Science. , v. 49 I, n. 4, p. 1968 - 1973, 2002.
189499
10.1109/TNS.2002.801483
2-s2.0-0036703252
Autor
Oliveira I.B.
Costa F.E.
Armelin M.J.
Cardoso L.P.
Hamada M.M.
Institución
Resumen
Lead iodide starting materials have been purified by a multipass zone refining process. The effectiveness of the purification method on the material purity was determined by neutron activation analysis after three different purification passes numbers. A significant decrease of the impurities concentration was observed in function of the passes number. The purest material of the zone refined ingots, middle section, was used for crystal growth by Bridgman method. The results of the dark leakage current, the resistivity, and the response of the alpha and gamma radiations were strongly dependent on the purity of the crystal. 49 I 4 1968 1973 McGregor, D.S., Hermon, H., Room-temperature compound semi conductor radiation detectors (1997) Nucl. Instrum. Methods, A395, pp. 101-124 Lund, J.C., Olschner, F., Burger, A., (1995) Semiconductors for Room Temperature Nuclear Detector Applications, Semiconductors and Semimetals, 43. , T.E. Schlesinger and R.B. James, Eds. San Diego, CA: Academic Chen, K.T., Burger, A., Chen, H., Chen, Y.F., Hansen, K., Suber, L., Calorimetric and spectroscopic characterization of zone refined and regrown lead iodide (1998) Proc. Material Research Society Symp., 487, pp. 369-372 Shah, K.S., Bennett, P., Klugerman, M., Moy, L., Cirignano, L., Dmitriyev, Y., Lead iodide optical detectors for gamma ray spectroscopy (1997) IEEE Trans. Nucl. Sci., 44, pp. 448-450. , June Shoji, T., Ohba, K., Suehiro, T., Hiratate, Y., Characterization of the PbI2 crystal as a material for radiation detectors (1997) IEEE Trans. Nucl. Sci., 44, pp. 451-452. , June Hermon, H., Lead iodide X-ray and gamma-ray spectrometers for room and high temperature operation (1998) Proc. Material Research Society Symp., 487, pp. 361-368 Schlesinger, T.E., Characterization of lead iodide for nuclear spectrometers (1996) Nucl. Instrum. Methods, A380, pp. 193-197 Zhang, J., Shah, K.S., Olschner, F., Lund, J.C., Moy, L.P., Daley, K., Cirignano, L., Squillante, M.R., An improvement in growing large, oriented lead iodide single crystals for detector applications (1992) Nucl. Instrum. Methods, A322, pp. 499-503 Shah, K.S., Lead iodide x-ray detection systems (1996) Nucl. Instrum. Methods, A380, pp. 266-270 Deich, V., Roth, M., Improved performance lead iodide nuclear radiation detectors (1996) Nucl. Instrum. Methods, A380, pp. 169-172 Lund, J.C., Shah, K.S., Squillante, M.R., Moy, L.P., Sinclair, F., Entine, G., Properties of lead iodide semiconductor radiation detectors (1989) Nucl. Instrum. Methods, A283, pp. 299-302 Shah, K.S., Eletronic noise in lead iodide X-ray detectors (1994) Nucl. Instrum. Methods, A353, pp. 85-88 Fornaro, L., Saucedo, E., Ma, X., Mussio, L., Yerman, I., Burger, A., Lead iodide film position and characterization (2001) Nucl. Instrum. Methods, A458, pp. 406-412 Shoji, T., Ohba, K., Hiratate, Y., Suehiro, T., Fabrication of radiation detector using PhI2 crystal (1995) IEEE Trans. Nucl. Sci., 42, pp. 659-661. , Aug Lund, J.C., Zhang, J., Olschner, F., Moy, L., Shah, K.S., Medrick, S., Daley, K., Squillante, M.R., Recent progress in lead iodide X-ray spectrometer development (1992) Nucl. Instrum. Methods, A322, pp. 464-466 Glascock, M.D., (2001) An overview of neutron activation analysis, , http://web.missouri.edu/~glascock/naa_over.htm, Mar. Online Microfilm JCPDS7-235 Shoji, T., Hitomi, K., Suehiro, T., Tiba, T., Hiratate, Y., Fabrication of a nuclear radiation detector using the PbI2 crystal and response characteristics for gamma-rays (1998) IEEE Trans. Nucl. Sci., 45, pp. 581-584. , June