DocumentCode :
3354387
Title :
Graphene-based neutron detectors
Author :
Foxe, Michael ; Cazalas, E. ; Lamm, H. ; Majcher, A. ; Piotrowski, C. ; Childres, Isaac ; Patil, Arnol ; Chen, Yong P. ; Jovanovic, Igor
Author_Institution :
Dept. of Mech. & Nucl. Eng., Pennsylvania State Univ., University Park, PA, USA
fYear :
2011
fDate :
23-29 Oct. 2011
Firstpage :
352
Lastpage :
355
Abstract :
We are developing detector architectures and devices based on the novel carbon nanomaterial graphene, which has been shown to exhibit unusual electrical properties of potential use for next-generation radiation detectors. Of particular interest is the use of this technology to develop novel neutron detectors. To this end, we are studying architectures based on a neutron-absorbing converter material in conjunction with a graphene field-effect transistor (GFET). As an intermediate step towards the demonstration of GFET neutron detectors we utilize an alphasource to systematically study the effect of charge deposition on the device response. As an added benefit, this experiment helps us elucidate the important systematics of response to other types of radiation, including the dependence of the magnitude of graphene resistance modulation on the deposited energy and the dependence of device speed on the morphology of energy deposition.
Keywords :
alpha-particle detection; field effect transistors; graphene; neutron detection; C; GFET neutron detectors; alpha-source; charge deposition effect; detector architectures; device response; energy deposition; graphene field-effect transistor; graphene resistance modulation; graphene-based neutron detector; neutron-absorbing converter material; next-generation radiation detectors; novel carbon nanomaterial graphene; unusual electrical properties; Data acquisition; Detectors; Electrodes; Neutrons;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC), 2011 IEEE
Conference_Location :
Valencia
ISSN :
1082-3654
Print_ISBN :
978-1-4673-0118-3
Type :
conf
DOI :
10.1109/NSSMIC.2011.6154517
Filename :
6154517
Link To Document :
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