A modular NaI(Tl) detector for 20–1000 MeV photons
نویسندگان
چکیده
منابع مشابه
A Position Sensitive Detector for 1 - 10 MeV Gamma RaysJoel
A position sensitive detector for 9 MeV gamma rays has been developed as part of a contraband detection system for airports. The system images contraband, such as explosives or drugs, in a geometry similar to medical x-ray computed tomography. A point source of gamma rays shines through an unknown object. Transmission projections of the areal density of detected gamma rays are reconstructed int...
متن کاملA Proposed Model for Evaluating Modular Education
Introduction: Educational evaluation is one of the main elements of educational systems. It also has a particular role in different educational standards such as ISO 10015. It seems that oral and written examinations are not enough for an effective evaluation of instructions. In order to accomplish an efficient educational evaluation, an evaluation model was designed for educational assessment ...
متن کاملSearch for hidden sector photons with the ADMX detector.
Hidden U(1) gauge symmetries are common to many extensions of the standard model proposed to explain dark matter. The hidden gauge vector bosons of such extensions may mix kinetically with standard model photons, providing a means for electromagnetic power to pass through conducting barriers. The axion dark matter experiment detector was used to search for hidden vector bosons originating in an...
متن کاملMeV Gamma-Ray Imaging Detector with micro-TPC
We propose a new imaging gamma-ray detector in the MeV region. By measuring the directions and energies of not only a scattered gamma ray but also a recoil electron, the direction of an incident gamma ray would be essentially reconstructed event by event. Furthermore, one of two measured (zenith and azimuth) angles of a recoil electron gives us an additional redundancy which enables us to rejec...
متن کاملGeant4 and Theoretical Pair Production Cross Sections for 1 MeV - 100 GeV photons in Aluminum
Theoretical description of the pair production cross sections are discussed in several papers [1, 2, 3, 4, 5]. The tabulated data results that were used are calculated by H. Hubbell, H. A. Gimm, I. Overbo in JPCRD 9(4) pp. 1023-1147 (1980). The pair production cross sections are based on BetheHeithler bremsstrahlung cross sections since these two physical processes have similarities. If we take...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Nuclear Instruments and Methods in Physics Research
سال: 1983
ISSN: 0167-5087
DOI: 10.1016/0167-5087(83)90417-9