Diamond thin film detectors for beam monitoring devices

Bol, J.; Mueller, Susette C.; Berderman, E; Furgeri, A.; Pomorski, M.; Sander, C.; Udrea, S.; Varenstov, D.

doi:10.1002/pssa.200776328

Cited by 6 publications

(3 citation statements)

References 5 publications

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“…Although charge trapping has been observed for nitrogen-containing diamond, such behavior may in some cases be attributable to other contaminants [10]. Polycrystalline diamond is likewise expected to limit spatial resolution and uniformity [11] and can even lead to incomplete current-mode charge collection [12]. Most promising quantitative performance has in fact been observed from single-crystal high purity diamond plates [1].…”

Section: Specific Observations To Datementioning

confidence: 99%

Diamond X-ray photodiode for white and monochromatic SR beams

Keister

Smedley

Muller

et al. 2011

Nuclear Instruments and Methods in Physics Research Section A:

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High purity, single crystal CVD diamond plates are screened for quality and instrumented into a sensor assembly for quantitative characterization of flux and position sensitivity. Initial investigations have yielded encouraging results and have led to further development. Several limiting complications are observed and discussed, as well as mitigations thereof. For example, diamond quality requirements for x-ray diodes include low nitrogen impurity and crystallographic defectivity. Thin electrode windows and electronic readout performance are ultimately also critical to device performance. Promising features observed so far from prototype devices include calculable responsivity, flux linearity, position sensitivity and timing performance. Recent results from testing in high flux and high speed applications are described.

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Section: Specific Observations To Datementioning

confidence: 99%

Diamond X-ray photodiode for white and monochromatic SR beams

Keister

Smedley

Muller

et al. 2011

Nuclear Instruments and Methods in Physics Research Section A:

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“…With this investigation we aim to contribute to the overall field of diamond detectors, especially thin ones by: (i) studying their current signal, which is directly employed (i.e. no pulse shaping electronics) in applications such as beam monitoring system [13] and fast neutron detection [14], and (ii) introduce an alternative to costly digital electronics into our communities.…”

Section: Introductionmentioning

confidence: 99%

Time response of 50μm thickness single crystal diamond detectors

Dueñas

Mora

Traeger³

et al. 2015

Diamond and Related Materials

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“…High quality synthetic diamonds are of interest in a broad range of radiation detection applications ranging from particle timing and spectroscopy, to neutron, UV and X-ray sensors. Due to its near tissue equivalence [1], diamond is of great interest for medical dosimetry while its capability to operate at high temperature [2] along with the high thermal conductivity [3] and the low atomic number make it an attractive material for high intensity X-ray and particle beam monitoring. In these applications however it becomes an absolute requirement to use diamond detectors with electric contacts having low thickness and low atomic number.…”

Section: Introductionmentioning

confidence: 99%

X-ray induced photocurrent characteristics of CVD diamond detectors with different carbon electrodes

et al. 2013

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Diamond has unique properties which make it suitable for a broad range of radiation detection applications ranging from particle timing and spectroscopy, to neutron, UV and X-ray sensors. In X-ray dosimetry, the atomic number of diamond (Z = 6) close to that of the human tissues (Z = 7.42) allows to mimic the real absorbed dose avoiding off-line recalculations. Moreover, its low atomic number and the capability to withstand high radiation fluxes make possible its use as beam monitor without altering significantly the properties of the interacting beam. To preserve the tissue equivalence of the diamond and minimize the perturbation and absorption of the incident beam, diamond detectors based on low thickness and low atomic number electrodes become a requirement. In this paper we present the X-ray detection characteristics of electronic grade CVD diamond sensors prepared in house with thin amorphous carbon electrodes fabricated by Pulsed Laser Deposition (PLD) technique in the fluence range of 2.3 -3.6 J•cm -2 . The devices showed a linear dependence of the induced photocurrent respect to the dose rate. Also, best dynamic response and better stability of the signals were achieved for applied bias up to ±50 V with signal to noise ratio (SNR) of ~300.

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Diamond thin film detectors for beam monitoring devices

Cited by 6 publications

References 5 publications

Diamond X-ray photodiode for white and monochromatic SR beams

Diamond X-ray photodiode for white and monochromatic SR beams

Time response of 50μm thickness single crystal diamond detectors

X-ray induced photocurrent characteristics of CVD diamond detectors with different carbon electrodes

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