LIMITATIONS ON MOSFET DOSIMETER RESOLUTION IMPOSED BY 1 F NOISE/

Authors
TARR NG PLETT C YEATON A MACKAY GF THOMSON I
Citation
Ng. Tarr et al., LIMITATIONS ON MOSFET DOSIMETER RESOLUTION IMPOSED BY 1 F NOISE/, IEEE transactions on nuclear science, 43(5), 1996, pp. 2492-2495
Citations number
12
Categorie Soggetti
Nuclear Sciences & Tecnology","Engineering, Eletrical & Electronic
Journal title
IEEE transactions on nuclear science → ACNP
ISSN journal
00189499
Volume
43
Issue
5
Year of publication
1996
Pages
2492 - 2495
Database
ISI
SICI code
0018-9499(1996)43:5<2492:LOMDRI>2.0.ZU;2-I
Abstract
A sensitive microcomputer-controlled MOSFET-based dosimeter system has been constructed to examine the effects limiting the ability of MOSFE T dosimeters to detect very small radiation doses, It is shown that th e dose resolution of this system is limited by 1/f noise in the senses MOSFET's themselves. Doses below 1 mGy (100 mrad) can be detected, St ructural changes to the sensor MOSFET's that might provide further imp rovements in resolution trough reduction of 1/f noise are discussed.