A Wearable Real-Time CMOS Dosimeter With Integrated Zero-Bias Floating Gate Sensor and an 861-nW 18-Bit Energy-Resolution Scalable Time-Based Radiation to Digital Converter

Chatterjee, Baibhab; Sen, Shreyas; Mousoulis, Charilaos; Seo, Dong-Ho; Kumar, Anurag; Maity, Shovan; Scott, Sean; Valentino, Daniel J.; Morisette, Dallas T.; Peroulis, Dimitrios

doi:10.1109/jssc.2019.2953833

Cited by 16 publications

(10 citation statements)

References 21 publications

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“…The floating gate (FG) structures can be implemented by connecting the poly-silicon gate of a MOS-capacitor to the gate of sensing MOSFET device in standard CMOS technology [66] as shown in in Figure 6a. Otherwise, it can also be implemented by using an additional insulated poly-silicon gate in a custom two poly CMOS process [67] as shown in Figure 6b. Thereby, in this process a capacitance is also formed alongside the gate of the FGMOS device.…”

Section: Radiation Sensitive Mosfet Devicesmentioning

confidence: 99%

“…The sensing FGMOS and the typical MOSFET are used in a differential configuration and therefore it cancels out temperature induced changes happening in both devices as reported in [15,65]. Alternatively, the FGMOS devices are used to implement current starved inverters and provide a frequency output, the change of which is proportional to the total accumulated dose [66,67]. FGMOS based dosimeters are typically very sensitive to radiation dose and therefore the sensor responses are saturated and suffer from non-linearity for dose levels more than 100 Gy.…”

Section: Radiation Sensitive Mosfet Devicesmentioning

confidence: 99%

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A Review of Semiconductor Based Ionising Radiation Sensors Used in Harsh Radiation Environments and Their Applications

et al. 2021

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This article provides a review of semiconductor based ionising radiation sensors to measure accumulated dose and detect individual strikes of ionising particles. The measurement of ionising radiation (γ-ray, X-ray, high energy UV-ray and heavy ions, etc.) is essential in several critical reliability applications such as medical, aviation, space missions and high energy physics experiments considering safety and quality assurance. In the last few decades, numerous techniques based on semiconductor devices such as diodes, metal-oxide-semiconductor field-effect transistors (MOSFETs) and solid-state photomultipliers (SSPMs), etc., have been reported to estimate the absorbed dose of radiation with sensitivity varying by several orders of magnitude from μGy to MGy. In addition, the mitigation of soft errors in integrated circuits essentially requires detection of charged particle induced transients and digital bit-flips in storage elements. Depending on the particle energies, flux and the application requirements, several sensing solutions such as diodes, static random access memory (SRAM) and NAND flash, etc., are reported in the literature. This article goes through the evolution of radiation dosimeters and particle detectors implemented using semiconductor technologies and summarises the features with emphasis on their underlying principles and applications. In addition, this article performs a comparison of the different methodologies while mentioning their advantages and limitations.

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Section: Radiation Sensitive Mosfet Devicesmentioning

confidence: 99%

Section: Radiation Sensitive Mosfet Devicesmentioning

confidence: 99%

A Review of Semiconductor Based Ionising Radiation Sensors Used in Harsh Radiation Environments and Their Applications

et al. 2021

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“…A monolithically integrated CMOS wearable radiation dosimeter consisting of a floating gate (FG) as a resistive sensor has been reported to be multiple times sensitive than other CMOS FG based dosimeters. [ 16 ]…”

Section: Radiation Dosimetry Techniquesmentioning

confidence: 99%

“…consisting of a floating gate (FG) as a resistive sensor has been reported to be multiple times sensitive than other CMOS FG based dosimeters. [16] Another technique with bismuth oxide in an organic bulk heterojunction (BHJ) as a disruptive, flexible, low cost, broadband, and low power operated sensor for X-ray measurements has been depicted in. [60] Such dosimeters can be used in combination with a medical linear accelerators (LINAC) used for cancer therapy and also for in vivo applications; here the dose can be monitored while the examination/treatment is going on.…”

Section: Other Advanced Materials For Dosimetersmentioning

confidence: 99%

“…When exposed to a radiation of sufficient energy, a radiation dosimeter experiences a change in its properties which is expressed optically, [ 15 ] electrically, [ 16 ] thermally, [ 17 ] mechanically, [ 18 ] or biologically. [ 19 ] As these interact with the radiation, ionization takes place which impacts the characteristics of the dosimeter.…”

Section: Introductionmentioning

confidence: 99%

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Wearable Dosimeters for Medical and Defence Applications: A State of the Art Review

Dhanekar

Rangra

2021

Adv Materials Technologies

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Wearable dosimeters form an essential part of the personnel protection scheme in work spaces such as defence, nuclear establishments, and medical fields with radiation hazard. In the current scenario where use of high energy ionizing radiation sources (nuclear sources) is indispensable, the need of radiation detectors is mandatory for measuring the dose received by the person exposed in his work space and also measure the dose for patients where nuclear radiation is used for treatment. Wearable dosimeters need to have some special requirements apart from being accurate, precise, and robust. These need to be light in weight and should cause no harm to the human body while it is touching the body or apparels. This paper comprises an introduction to dosimeters, key characteristics, important techniques used for detection of neutrons and X‐rays and also mentions about a few potential companies involved in developing wearable dosimeters in these application areas. The techniques have been collated, described, compared and the need to detect neutrons and X‐rays has been expressed keeping in mind the demand from the defence and medical disciplines. This review also contains artificial intelligence and internet of things which form the basis of trending and upcoming wearable dosimeters.

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Artificial mechanoreceptor based on van der Waals stacking structure

Lee

Huang

Tsai

et al. 2021

Matter

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A Wearable Real-Time CMOS Dosimeter With Integrated Zero-Bias Floating Gate Sensor and an 861-nW 18-Bit Energy-Resolution Scalable Time-Based Radiation to Digital Converter

Cited by 16 publications

References 21 publications

A Review of Semiconductor Based Ionising Radiation Sensors Used in Harsh Radiation Environments and Their Applications

A Review of Semiconductor Based Ionising Radiation Sensors Used in Harsh Radiation Environments and Their Applications

Wearable Dosimeters for Medical and Defence Applications: A State of the Art Review

Artificial mechanoreceptor based on van der Waals stacking structure

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