Calibration of a neutron detector based on single event upset of SRAM memories

Domingo, C.; Gómez, F.; Sánchez‐Doblado, F.; Hartmann, Günther H.; Amgarou, K.; García-Fusté, M.J.; Romero, Marta; Böttger, R.; Nolte, R.; Wissmann, F.; Zimbal, A.; Schuhmacher, H.

doi:10.1016/j.radmeas.2010.08.021

Cited by 10 publications

(2 citation statements)

References 25 publications

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“…A thorough description of the detector was given by Gómez et al (2010) and Domingo et al (2010b). This system is composed by an array of static random access memories (SRAM) devices which are sensitive to neutron fluence (Baumann and Smith 2001).…”

Section: The Digital Detectormentioning

confidence: 99%

Estimation of neutron-equivalent dose in organs of patients undergoing radiotherapy by the use of a novel online digital detector

et al. 2012

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Neutron peripheral contamination in patients undergoing high-energy photon radiotherapy is considered as a risk factor for secondary cancer induction. Organ-specific neutron-equivalent dose estimation is therefore essential for a reasonable assessment of these associated risks. This work aimed to develop a method to estimate neutron-equivalent doses in multiple organs of radiotherapy patients. The method involved the convolution, at 16 reference points in an anthropomorphic phantom, of the normalized Monte Carlo neutron fluence energy spectra with the kerma and energy-dependent radiation weighting factor. This was then scaled with the total neutron fluence measured with passive detectors, at the same reference points, in order to obtain the equivalent doses in organs. The latter were correlated with the readings of a neutron digital detector located inside the treatment room during phantom irradiation. This digital detector, designed and developed by our group, integrates the thermal neutron fluence. The correlation model, applied to the digital detector readings during patient irradiation, enables the online estimation of neutron-equivalent doses in organs. The model takes into account the specific irradiation site, the field parameters (energy, field size, angle incidence, etc) and the installation (linac and bunker geometry). This method, which is suitable for routine clinical use, will help to systematically generate the dosimetric data essential for the improvement of current risk-estimation models.

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Section: The Digital Detectormentioning

confidence: 99%

Estimation of neutron-equivalent dose in organs of patients undergoing radiotherapy by the use of a novel online digital detector

et al. 2012

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“…A pixel organization of the sensor is often required to obtain high detector sensitivity [2][3][4][5]. Other detectors are based on SRAM detection by counting the bit-flip number [6], but little information is then available about the generated current characteristics and so about the particle features. A large number of devices is also needed in this case to obtain significant results.…”

Section: Introductionmentioning

confidence: 99%

Improvement of a VCO concept for low energy particule detection and recognition

Coulie-Castellani

Rahajandraibe

Micolau

et al. 2014

2014 15th Latin American Test Workshop - LATW

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A way of improvement of an oscillator concept, dedicated to detection and tracking of low energy particles with low fluxes, is presented. The solution is based on an indirect detection of the current generated at the input of the detection chain, through a VCO response. In order to improve the correlation between the input current and the oscillator response, a new way of VCO implementation is proposed. The new output parameter variations are analyzed.

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