A 256-element mercuric iodide (Hg12) detector array has been developed which is intended for use as an intraoperative gamma camera (IOGC). The camera is specifically designed for use in imaging gamma-emitting radiopharmaceuticals (such as 99m-Tc labeled Sestamibi) incorporated into brain tumors in the intraoperative surgical environment. The system is intended to improve the success of tumor re...

Gamma transparent materials are necessary to avoid detection Development of a small area (1-2 cm2) in situ beta imaging device includes optimization of the front end scintillation detector which is fiber optically coupled to a remote photon detector. Thin plastic scintillation detectors, which are sensitive to charged particles, are the ideal detectors due to the low sensitivity to ambient gamm...

Compton suppression system was established to accurately and precisely measure low-level radiation during insitu measurement of sites. HPGe detector was selected as the main detector and plastics scintillation detector was selected as the guard detector. Using Cs source, while changing the height(h) and width(w) about plastic scintillation detector the gamma spectrum was simulated using the Mon...

A method for determining the photo excitation reaction cross section of at gamma energy is investigated. HPCe detector used to measure absolute activity induced, producing a practical value calculating average section. Which found be (0.6683) ub matching expected theoretical value.
 This work may considered pioneer measurements such – section.
 Key words: Activity induced,Cross sectio...

The SPI anticoincidence shield consists of 91 BGO crystals and is operated as a nearly omnidirectional gamma-ray burst detector above 75 keV. Since the start of the mission 269 gamma-ray burst candidates have been detected. 110 bursts have been confirmed with the instruments included in the 3rd Interplanetary Network. Here we present a preliminary statistical analysis of the SPI-ACS sample of g...

The ClearMind project aims to develop the TOF-PET position sensitive detection module optimized for time resolution, spatial and efficiency. For this, uses a large (59 × 59 mm2) monolithic PbWO4 (PWO) scintillating crystal with bialkali photo-electric layer deposited directly on crystal. Scintillation Cherenkov photons result together from 511 keV gamma-ray interaction into PWO A micro-channel ...