Digital spectroscopy with Silicon Photomultiplier (SiPM) array coupled on CsI(Tl) crystal, needs some consideration to achieve desirable energy resolution. an array of SiPMs must be used with large scintillation crystal, therewithal signal from whole SiPMs is not ideal. Also silicon pixels are arranged in arrays at regular intervals. The distances between the pixels and the interference of the cross-talk of adjacent pixels are undesirable factors for energy resolution when the light is received by the crystal and transmitted to the SiPM array. On the other hand, due to the advantages of the SiPM array, there is a need to improve the energy resolution in order to be able to be applied. In this paper, an attempt is made to obtain the desired energy resolution by using the digital spectroscopy method and digital filters and properly shaping the output pulse of the preamplifier by the trapezoidal filter method. In this case, it will be possible to use it in different applications such as spectroscopy by the detector.

Near-infrared spectroscopy (NIRS) is a spectroscopic method that uses the near-infrared region of the electromagnetic spectrum. Typical applications include medical and physiological diagnostics. NIRS can be used for non-invasive assessment of brain function through the intact skull in human subjects by detecting changes in blood hemoglobin concentrations associated with neural activity, e. g., in branches of cognitive psychology as a partial replacement for fMRI techniques. NIRS cannot fully replace fMRI because it can only be used to scan cortical tissue, where fMRI can be used to measure activation throughout the brain. In this approach we compared NIRS with different functional brain tests.

Gamma rays associated with the decay of states in 102Ag nucleus have been identified, sixty-four of them for the first time following the reaction 50Cr (56Fe, 3pn) 102Ag at a mean energy of 195 MeV. Identification was made using an array of nine, escapesuppressed Ge detectors coupled to a Daresbury Recoil Separator. Excited states in 102Ag were identified using recoil-gamma and gamma-gamma coincidences. From the intensity balance and the coincidence data, a new set of levels was identified which may be interpreted as the reminiscent of "three quasiparticle" bands in neighboring odd-mass nuclei and similar to a four quasi-particle band observed in 106Ag.