NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Collections About News Help Login
Back to Results
High Efficiency Plastic Scintillator Detector with Wave-Length Shifting Fiber Readout for the GLAST Large Area TelescopeThis paper describes the design and performance studies of the scintillator tile detectors for the Anti-Coincidence Detector (ACD) of the Large Area Telescope (LAT) on the Gamma ray Large Area Space Telescope (GLAST), scheduled for launch in early 2008. The scintillator tile detectors utilize wavelength shifting fibers and have dual photomultiplier tube (PMT) readout. The design requires highly efficient and uniform detection of singly charged relativistic particles over the tile area and must meet all requirements for a launch, as well as operation in a space environment. We present here the design of three basic types of tiles used in the ACD, ranging in size from approx.450 sq cm to approx.2500 sq cm, all 1 cm thick, with different shapes, and with photoelectron yield of approx. 20 photoelectrons per minimum ionizing particle (mip) at normal tile incidence, uniform over the tile area. Some tiles require flexible clear fiber cables up to 1.5 m long to deliver scintillator light to remotely located PMT.
Document ID
20080030333
Acquisition Source
Goddard Space Flight Center
Document Type
Preprint (Draft being sent to journal)
Authors
Moiseev, A. A. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Deering, P. L. (Fermi National Accelerator Lab. Batavia, IL, United States)
Hartman, R. C. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Johnson, T. E. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Nebel, T. R. (Fermi National Accelerator Lab. Batavia, IL, United States)
Ormes, J. F. (Denver Univ. Denver, CO, United States)
Thompson, D. J. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 24, 2013
Publication Date
October 1, 2007
Subject Category
Astronomy
Distribution Limits
Public
Copyright
Public Use Permitted.

Related Records

There are no records associated with this record.
No Preview Available