Development of a Gamma-Ray Box (GARBO)

Autor: C. J. Lister, T. Lauritsen, Pat Sangsingkeow, E. F. Moore, T. A. Underwood, M. P. Carpenter, T. Sienko, R. V. F. Janssens, D. T. Nisius, Gaurab Mukherjee, T. L. Khoo, I. Ahmad, J. Amman, S. M. Fischer, B. Truett
Rok vydání: 2003
Předmět:
Zdroj: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 505:163-166
ISSN: 0168-9002
DOI: 10.1016/s0168-9002(03)01042-8
Popis: Isomer decays, β–γ and electron–γ spectroscopy, α–γ fine structure studies, and Coulomb excitation are cases of nuclear structure experiments where the ideal detector is a compact, highly segmented, very efficient germanium (Ge) detector box. In order to develop such a structure, we are working on the R&D of large, segmented, high-purity planar Ge strip detectors (HPGeDSSD) which form the walls of such a box. We have developed a 92 mm×92 mm×20 mm HPGeDSSD, which has 16×16 orthogonal strips of 5 mm width. We are in the process of designing a focal plane detector for the Argonne fragment mass analyzer which consists of a five-sided box, each side having a HPGeDSSD backed by a large segmented clover HPGe detector. MCNP simulations indicate this detector would have an efficiency of ∼60% for 122 keV gamma rays and ∼15% for 1.33 MeV radiation, which is ideal for studying the decays of nuclei far from stability that are usually produced with very low cross-sections.
Databáze: OpenAIRE