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SUMMARY:A  0.18 μm CMOS Low-Power Radiation Sensor for Asynchronous Event
 -Driven UWB Wireless Transmission
DTSTART;VALUE=DATE-TIME:20120503T180000Z
DTEND;VALUE=DATE-TIME:20120503T190000Z
DTSTAMP;VALUE=DATE-TIME:20130524T200845Z
UID:indico-contribution-36@cern.ch
DESCRIPTION:Speakers: Dr. GABRIELLI\, Alessandro (Universita e INFN (IT))\
 nWe describe the design of a floating gate-based MOS sensor embedded in a 
 read-out CMOS sensing element used as a radiation sensor. The read-out cel
 l asynchronously triggers an all-digital Ultra-Wide Band (UWB) transmitter
  operating in a 0-5GHz band\, with a repetition frequency\, which dynamica
 lly depends on the radiation level. The trigger signal ranges 20 to 30MHz\
 , with a designed sensor input range\, between 0 and 2V. \n	The floating g
 ate MOS sensor has been recently characterized and here emulated with a co
 mmercial radiation-sensitive FETs based on a metal-oxide-silicon p-channel
  structure\, for a 2V variation given an equivalent absorbed dose of 100ra
 d within 1 and 100krad. A maximum sensitivity of 1mV/rad is estimated up t
 o 10krad. The paper shows the design of a preliminary microelectronic circ
 uit that includes a sensor\, an oscillator and modulator\, which is now un
 der submission. The prototype will be interfaced to an external power supp
 ly and to an antenna for pulse transmission\, to provide a preliminary pro
 of-of-concept validation before a complete integration. Given the small es
 timated area of the complete chip prototype\, comprising the antenna\, i.e
 . less than 1mm2\, the IC can enable a large variety of applications for s
 pot radiation monitoring systems (High-Energy Physics experiments might be
 nefit of this concept). The paper shows measurements on a mini test-board 
 equipped with the full-custom components comprising an external transmitte
 r IC that will be integrated in the ASIC prototype (TowerJazz). First meas
 urements\, obtained at the “Istituto Italiano di Tecnologia”\, Center 
 for Space Human Robotics\, demonstrate the feasibility of the proposed eve
 nt-driven asynchronous Ultra-Low Power (ULP) UWB transmission. The Science
  and Technology Facility Council of the Rutherford Appleton Laboratory (RA
 L)\, UK\, supports the entire research.\n\nhttp://indico.cern.ch/contribut
 ionDisplay.py?contribId=36&sessionId=6&confId=154525
LOCATION:INFN Pisa
URL:http://indico.cern.ch/contributionDisplay.py?contribId=36&sessionId=6&
 confId=154525
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