Sensitivity of YBa2Cu3O7 thick films to gamma rays by B. A. Albiss and M. A. Al-Akhras

Crystal Research and Technology

Cryst. Res. Technol. 41, 1203 (2006) - Abstract -

Sensitivity of YBa₂Cu₃O₇ thick films to gamma rays

B. A. Albiss and M. A. Al-Akhras*

Superconductivity and Magnetic Measurements Laboratory, Physics Department, Jordan University of Science and Technology, Irbid, Jordan
*Physics Department, United Arab Emirates University, Al-Ein, United Arab Emirates

Keywords	YBa₂Cu₃O₇, thick film, gamma irradiation, superconductor
PACS	74.72.-h, 74.72.Bk, 78.70.-g
DOI	10.1002/crat.200610750

Superconducting YBa₂Cu₃O₇ (YBCO) thick films have been prepared using the screen printing method. Effects of gamma irradiation on their structure and transport properties have been investigated up to a gamma dose of 50 MR. A considerable decrease in the intensities of the major diffraction peaks of the XRD pattern was observed due to gamma irradiation. A gradual increase in the normal state resistance, with a gradual increase in the slope of the resistance-temperature curves was observed with increasing gamma doses. However, slight decrease in the transition temperature has been observed. The Voltage-current data were fitted to the power law in which the power exponent was found to increase gradually with gamma dose. The sensitivity of the R-T and V-I curves to gamma rays where precisely estimated and from which the regions of linear response were deduced. The possibility of using YBCO thick film as a candidate device for gamma rays sensing was presented.

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