The response of low-cost photodiodes for dosimetry in electron beam processing

Gonçalves, Josemary A. C.; Mangiarotti, A.; Asfora, Viviane K.; Khoury, Helen J.; Bueno, Carmen C.

doi:10.1016/j.radphyschem.2020.109335

Cited by 6 publications

(3 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…One of the most common types of radiation detectors are PN/PIN diodes and photodiodes [3,4], which can be implemented either as discrete detectors or integrated on a chip. With appropriate mixed-signal processing circuitry, these detectors can provide very accurate measurement of radiation exposure, with detailed information on induced charge, particle LET, energy spectra and flux.…”

Section: Related Work and Paper Contributionmentioning

confidence: 99%

“…Numerous solutions for soft error monitoring in space have been proposed. The most common sensors are PN/PIN diodes or photodiodes [3,4], stand-alone SRAMs [5,6], 3D NAND flash detectors [7], acoustic wave detectors [8], and bulk built-in current sensors (BBICS) [9][10][11][12][13]. We have proposed two alternative solutions: embedded SRAM [14] and custom-sized inverter chain [15,16].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

PS-BBICS: Pulse stretching bulk built-in current sensor for on-chip measurement of single event transients

Andjelković

Marjanovic²,

Chen³

et al. 2022

Microelectronics Reliability

View full text Add to dashboard Cite

Section: Related Work and Paper Contributionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

PS-BBICS: Pulse stretching bulk built-in current sensor for on-chip measurement of single event transients

Andjelković

Marjanovic²,

Chen³

et al. 2022

Microelectronics Reliability

View full text Add to dashboard Cite

“…The variation in the current sensitivity is expected to be mitigated in a very thin diode, i.e., with thickness much smaller than L n and L p, even reaching the highest accumulated dose. It holds in thin optical sensors as PIN photodiodes that have been used as real-time dosimeters for low-dose (<100 Gy) applications (Andjelković and Ristic, 2013;Gonçalves et al, 2020;Gonçalves et al, 2021). However, variations of 5% in the current response of a PIN photodiode are found even for doses around 15 kGy which constraints its widespread use in radiation processing applications where doses of tens of kGy are easily achieved (Gonçalves et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Performance Characterization of Dosimeters Based on Radiation-Hard Silicon Diodes in Gamma Radiation Processing

et al. 2022

View full text Add to dashboard Cite

The dosimetric response of silicon diodes produced with distinct engineering technologies, Magnetic Czochralski (MCz), and standard Float Zone (Fz), has been investigated, aiming at their use for online dosimeters in gamma radiation processing applications. The p+-n-n+ junction diodes, 300 µm thick with an active area of 25 mm2, are operated as online radiation dosimeters in the short-circuit current mode. In this case, the key dosimetric quantity is the dose rate, which is correlated with the output current from the diode subjected to radiation. Thus, the dose is obtained offline by the integration of the corresponding current signal. The irradiations are performed with an industrial Gammacell 60Co facility at 2.3–2.44 kGy/h covering doses up to 275 kGy. Under continuous irradiation, both diodes delivered current signals whose intensities decreased with accumulated doses. Mitigation of this decay has been accomplished by pre-irradiating the devices to 700 kGy. Polynomial functions best represent the dose responses for either pristine or preirradiated diodes. The relevant dosimetric parameters as response stability, charge sensitivity, and repeatability of current signals (<5%) reveal the better performance of the MCz diode. It is important to note that the whole dataset fully complies with the international standard protocols for routine dosimeters in radiation processing dosimetry. Regarding radiation damage, which in unbiased diodes manifests primarily in the decay of current sensitivity, the results also showed greater tolerance of the MCz diode. Based on these studies, large availability, and better cost-effectiveness, it is possible to endorse the potential use of MCz devices as online routine dosimeters in radiation processing applications. However, the data reproducibility with the accumulated dose, the dose lifespan, and the effect of the irradiation conditions (e.g., temperature, relative humidity, and dose fractionating) remain to be investigated. Works in this direction are currently in progress.

show abstract

A PIN photodiode ionizing radiation detector with small angular dependence and low buildup

Jursinic

2023

Radiation Measurements

View full text Add to dashboard Cite

The response of low-cost photodiodes for dosimetry in electron beam processing

Cited by 6 publications

References 23 publications

PS-BBICS: Pulse stretching bulk built-in current sensor for on-chip measurement of single event transients

PS-BBICS: Pulse stretching bulk built-in current sensor for on-chip measurement of single event transients

Performance Characterization of Dosimeters Based on Radiation-Hard Silicon Diodes in Gamma Radiation Processing

A PIN photodiode ionizing radiation detector with small angular dependence and low buildup

Contact Info

Product

Resources

About