Figure 6

(a) Experimental setup for detection of the alpha particles including electronic devices such as a Preamplifier-Ortec 142B, an Amplifier Ortec 672, a High Voltage Supply- Stanford PS350, a MCA(Ortec MCA) and a laptop computer(Lenovo T420i). (b) response spectra to ²³⁹Pu alpha particles for the three SiC detectors before (black open blocks) and after neutron irradiation at a reverse bias voltage of 300 V (blue open circles with neutron radiation fluence of 1.31 × 10¹⁴ cm⁻² and blue open up-triangles with neutron radiation fluence of 7.29 × 10¹⁴ cm⁻²) acquired at room temperature.