## 1 Introduction  
Silicon, being the most abundant element on earth [1], has facilitated the large-scale production of innumerable silicon-based electronic circuit components such as photonic devices. Therefore, photonic devices are readily available at low cost and are fundamentally fabricated for luminescence applications--detect and produce light. However, medical applications not only use photonic devices for luminescence, but also for diagnostic and therapeutic radiation detection [2]. Multiplication registers and intensifier screens implement sensitivity enhancement in charge-coupled devices (CCDs), such as electron-multiplying CCDs (EMCCDs) and intensified CCDs (ICCDs), respectively [3]. Consequently, EMCCDs and ICCDs have a notably higher sensitivity than traditional CCDs--especially while detecting extremely low light photons [3]. Semiconductor-based detectors, such as avalanche photodiodes (APDs), are also associated with intrinsic signal amplification [4]. However, transimpedance amplifiers and bipolar junction transistors are applied to externally amplify photodiode detected signals [5; 6; 7]. Therefore, photonic device raw signal amplification is of paramount importance--particularly for low radiation-induced signal detection [8; 9; 10]. The current literature and research results have established LEDs as visible light/optical [11; 12; 13] and diagnostic X-ray [14] detectors. In applications [11; 12; 13], two LEDs were employed (one LED as a light emitter and the other as a detector of the light emitted by the first LED) in the form of a paired emitter detector diode (PEDD). Besides, the comparison of blue and red LED emission and sensitivity spectra discovered drift of the LED detection sensitivity to shorter wavelengths--for both the tested LEDs [11]. This LED sensitivity to short wavelengths could imply the ability to detect electromagnetic radiation with short wavelengths, e.g., diagnostic X-rays. LEDs could, thus, be an alternative detection device for diagnostic X-rays, because they are not only spectrally selective (detect a specific wavelength range) [11; 15], but could also be resistant to diagnostic X-ray-induced structural damages [16; 17] (in comparison to other photodetectors, such as photodiodes). The output signal achieved during detection-mode is very low because LEDs are optimized for luminescence (~0.5-4.5 nA [11]). LED luminosity output enhancements, such as those that were observed in [18], have been executed. These have greatly improved the efficiency of LEDs as light emitters. Contrastingly, similar studies augmenting LED efficiency as a detector are non-existent in the present-day literature. Although research [11] has highlighted that LED visible-light-induced signals could be approximately ten times as low as that of photodiode visible-light-induced signals, there is still little evidence regarding the technique to enhance the sensitivity of LEDs--when employed as detectors for diagnostic X-rays. More so, in the early nineties, the application of LEDs as detectors was mainly discouraged due to low detected signals; the technology then was not adequate for providing a solution to this setback [11]. In our earlier work [14], the cold white LED strip was characterized with the best dosimetric response in comparison to warm white, red, green, and blue LED strips. This work approved our further exploitation of the cold white LED strip for dosimetry applications with respect to dosimetric traits, such as LED signal linearity to diagnostic X-ray dose and tube current-time product (mAs), and slight degradations in LED signal output as a consequence of accumulated dose/increased radiation exposure. Even though quantifiable, the cold white signals were low and they ranged from 0 to 1.1 mV. Today, operational amplifiers and high gain transistors are applied to amplify the electrical output signals of photodiodes [5].