NDLI: Exploring RF Transmissions From Discharge-Based Micromachined Radiation Detectors

Content Provider	IEEE Xplore Digital Library
Author	Eun, C.K. Gianchandani, Y.B.
Copyright Year	2008
Description	Author affiliation: Dept. of Electr. Eng. & Comput. Sci., Univ. of Michigan, Ann Arbor, MI (Eun, C.K.; Gianchandani, Y.B.)
Abstract	This paper describes micromachined gas-based radiation sensors that are capable of radio frequency wireless signaling, and their possible utility in networks. The devices include a gas-filled region with a high electric field, in which incident beta-particles initiate avalanche breakdown. Under the proper circumstances, the resulting current pulses can inherently produce wireless transmissions. Two types of lithographically-manufactured devices are presented: (1) a silicon/glass stack with etched detection cavities and (2) a planar, 3-electrode metal-on- glass structure that uses a high-impedance electrode for increased control of discharge energy. Both are capable of producing ultra-wideband signals spanning >2.9 GHz. Permanent magnets (integrated with both structures) can enhance the RF performance by ap15-20 dBmuV. The impact of operating pressure, fill-gases (which are typically a mixture of Ne and $N_{2})$ and electrode materials (Ni, Cu) on device performance is described. Tests performed in the proximity of weak (0.1-1.0 muCi) beta sources $(^{90}Sr,$ $^{204}Tl),$ show that a 25% decrease in pressure permits a 55% decrease in operating voltage. Increasing Ne content in the fill-gas (e.g. $Ne-to-N_{2}$ ratio from 1:5 to 3:5) decreases the minimum operating voltage by 200 V without loss in RF performance. Ni electrodes, which have a higher secondary electron emission coefficient than Cu, provide 30% more overall signal power.
Starting Page	18
Ending Page	23
File Size	2358042
Page Count	6
File Format	PDF
ISBN	9781424419777
DOI	10.1109/THS.2008.4534416
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-05-12
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Radio frequency Electrodes Wireless sensor networks Radiation detectors RF signals Glass Voltage Sensor phenomena and characterization Avalanche breakdown Silicon
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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