The results obtained in laboratory tests, iTagPro reviews utilizing scintillator bars read by silicon photomultipliers are reported. The present method is step one for designing a precision monitoring system to be positioned inside a free magnetized quantity for the cost identification of low energy crossing particles. The devised system is demonstrated able to supply a spatial decision better than 2 mm. Scintillators, Photon Solid State detector, particle tracking devices. Among the deliberate actions was the development of a light spectrometer seated in a 20-30 m3 magnetized air quantity, the Air Core Magnet (ACM). The whole design must be optimised for the willpower of the momentum and cost of muons within the 0.5 - 5 GeV/c vary (the mis-identification is required to be lower than 3% at 0.5 GeV/c). 1.5 mm is required inside the magnetized air quantity. On this paper we report the outcomes obtained with a small array of triangular scintillator bars coupled to silicon photomultiplier (SiPM) with wavelength shifter (WLS) fibers.

This bar profile is here demonstrated in a position to provide the required spatial decision in reconstructing the place of the crossing particle by profiting of the cost-sharing between adjacent bars readout in analog mode. SiPMs are wonderful candidates in replacing customary photomultipliers in lots of experimental conditions. Tests have been carried out with laser beam pulses and radioactive supply as a way to characterize the scintillator bar response and SiPM behaviour. Here we briefly current the noticed behaviour of the SiPM utilized in our tests relating to the main sources of noise and the impact of temperature on its response and linearity. Several models and ItagPro packaging have been considered. The principle supply of noise which limits the SiPM’s single photon resolution is the "dark current" rate. It is originated by charge carriers thermally created in the delicate volume and iTagPro reviews current within the conduction band and due to this fact it is dependent upon the temperature. The dependence of the dark current single pixel price as a operate of the temperature has been investigated using Peltier cells so as to alter and keep the temperature controlled.

Dark current price depends also on the Vwk as shown in Fig. 3. With a purpose to have low charges of dark present the value of Vbias has been mounted at 1.5 V giving a working voltage Vwk of 29 V. It is evident that, if needed, it may be handy to use a bias voltage regulator