The X-ray response of InP: Part B, synchrotron radiation measurements

Energy nonlinearity in radiation detection materials: Causes and consequences

“…For gamma-and X-rays in Si, the average energy W per created electronhole pair was reported to drop from 3.82 eV at 300 eV to 3.70 eV at 1.0 keV [18]. W then jumped from 3.67 eV just below the K-shell energy of 1840-3.69 eV just above, then dropping to 3.68 eV at 2.0 keV and leveling out at 3.67 eV above 3.7 keV [19]. Other workers found W in Si to be essentially constant above about 50 eV, with little or no measured core shell discontinuity [20,21].…”

Ti and Mn co-doped semi-insulating InP particle detectors operating at room temperature

“…Except the work published by Jayavel et al and some later reported results by Dubecky et al [2], no significant efforts have been made so far to prepare and study InP radiation detectors operating at RT. Moreover, excellent spectrometric results, the FWHM energy resolution 8.5 and 4 keV, respectively, at 59.54 and 22.1 keV, have been reported by Owens et al [12,13] at low temperatures (at 210 K). As well, the relative energy resolution in FWHM 4.7% and the CCE 83% for 59.54 keV source have been reported by Bohacek et al [14] at 220 K. …”

“…[5]. In its turn, excellent results (mentioned above) on InP:Fe radiation detectors have been reported by Jayavel et al [11] and also recently published by Owens et al [12,13] and Bohacek et al [14].…”

Room-temperature particle detectors with guard rings based on semi-insulating InP co-doped with Ti and Zn

“…An energy resolution of 20 at 122 keV and 112 at 661 keV was obtained. Good spectrometric results of g-ray spectra at 210 K, the FWHM energy resolution 2.4 at 5.9 keV, 8.5 at 59.54 keV and 12 at 88 keV, have been published [6,7]. Moreover, g-ray detectors based on SI InP:Fe presented in Ref.…”

“…Earlier studies used iron-doped SI material grown by the Liquid-Encapsulated Czochralski (LEC) method [1][2][3][4][5][6][7] have shown that detectors based on this material possess low CCE and poor energy resolution (R). This is largely due to the high electron and hole capture rate on Fe dopant and the creation of FeP 2 precipitates at the highest Fe concentration in the crystal.…”