Optimized readout methods of silicon drift detectors for high-resolution X-ray spectroscopy

Niculae, A.; Lechner, P.; Soltau, H.; Lütz, G.; Strüder, L.; Fiorini, C.; Longoni, A.

doi:10.1016/j.nima.2006.06.025

Cited by 51 publications

(21 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…After the electrostatic barrier the magnetic field increases to focus particles that overcome the barrier onto a silicon drift detector (SDD) [6]. The detector is held at a high negative potential to post-accelerate the protons to detectable energies, and to ensure that the protons overcome the magnetic mirror created by the increasing field.…”

Section: The Spectrometermentioning

confidence: 99%

Measuring the proton spectrum in neutron decay—Latest results with aSPECT

Simson

Guardia

Baeßler

et al. 2009

Nuclear Instruments and Methods in Physics Research Section A:

View full text Add to dashboard Cite

The retardation spectrometer aSPECT was built to measure the shape of the proton spectrum in free neutron decay with high precision. This allows us to determine the antineutrino electron angular correlation coefficient a. We aim for a precision more than one order of magnitude better than the present best value, which is ∆a/a = 5 %.In a recent beam time performed at the Institut Laue-Langevin during April / May 2008 we reached a statistical accuracy of about 2 % per 24 hours measurement time. Several systematic effects were investigated experimentally. We expect the total relative uncertainty to be well below 5 %.

show abstract

Section: The Spectrometermentioning

confidence: 99%

Measuring the proton spectrum in neutron decay—Latest results with aSPECT

Simson

Guardia

Baeßler

et al. 2009

Nuclear Instruments and Methods in Physics Research Section A:

View full text Add to dashboard Cite

show abstract

“…The preamplifier is compatible with the pulsed reset mode of the detector, which is widely accepted as one of the best techniques for the SDD readout at present [3]. Its advantages are high peak stability, halved parallel noise contribution to…”

Section: A the Preamplifiermentioning

confidence: 99%

A multi-channel ASIC for the readout of the HICAM gamma camera

Gola

Bombelli

Fiorini

et al. 2008

2008 IEEE Nuclear Science Symposium Conference Record

Self Cite

View full text Add to dashboard Cite

The aim of the HICAM project is to build a compact, high-resolution y-ray imager for human patients, designed according to the Anger Camera principle. The imager is based on an array of 10 x 10 Silicon Drift Detectors, coupled to a single CsI:TI scintillator. The array of photo detectors is read out by four 25-channel ASICs, which are the subject of this paper. Each channel of the ASIC features a low-noise preamplifier, compatible with the pulsed reset mode of the SDD, a gain stage, a high order semi-Gaussian shaping amplifier with selectable peaking times, a baseline holder and a peak stretcher. The ASIC also contains a 25: 1 analog multiplexer, a digital section and a differential ADC driver. The pulsed reset mode of the preamplifier, which reduces the parallel noise of the system, is particularly well suited for the use with long shaping times, which are required by the CsI:TI scintillator, due to its long primary decay time constant. The ASIC, however, features peaking times ranging from 1.1 fJS up to 11 fJS, optimized for both X-ray direct conversion measurements and for y-ray measurements with LaBr3:Ce and CsI:TI. In the paper we describe the design and the first experimental characterization of the ASIC, together with a test SDD. With an ultra-low noise test SDD we have measured an energy resolution of 130 eV FWHM at the Mn Ka line, showing that the ASIC has a good potential for high resolution y-spectroscopy.

show abstract

“…The basic idea of the pulsed reset charge amplifier configuration is the removal of the collected charge by means of a short positive pulse applied to the on-chip reset diode [4]. The pulsed-reset configuration eliminates the noise contribution introduced by the signal current and does not increase the parallel noise due to the leakage.…”

Section: Charge Preamplifier Configuration With Pulsed Resetmentioning

confidence: 99%

“…The integration of the first stage of the front-end electronics [3] on the detector chip allows extremely high-resolution spectroscopy even at high counting rates and low energies. Different readout topologies for the on-chip transistor have been designed and are used [4,5].…”

Section: Introductionmentioning

confidence: 99%

Performance of Different Readout Topologies of Silicon Drift Detectors in PIXE Spectroscopy

Alberti

Grassi

Guazzoni

et al. 2008

2008 IEEE Nuclear Science Symposium Conference Record

View full text Add to dashboard Cite

PIXE (Particle Induced X-ray Emission) is a very powerful technique for the detection of medium-light elements (down to Z=ll -Na) due to its superior cross-sections in this atomic number region. However, a common problem in all PIXE setups is the backscattering of protons from the target that perturbs the electronic system, causing front-end electronics saturation, increasing the dead-time and deteriorating the energy resolution due to signal-dependent noise. The state-of-the-art detectors for X-ray spectroscopy are silicon drift detectors characterized by a very low output capacitance (of the order of 100 fF) independent of the active area of the device. This feature allows the SDD to reach a lower electronic noise with respect to a conventional silicon diode of equivalent area and thickness. The integration of the first stage of the front-end electronics on the detector chip allows extremely high-resolution spectroscopy even at high counting rates and low energies. We have evaluated the performance of different readout configurations in PIXE spectroscopy (source follower configuration, self-reset charge amplifier configuration, adaptive self-reset charge amplifier configuration, pulsed-reset charge amplifier). The readout topologies have been compared in terms of output waveform, achievable energy resolution, peak shift and maximum count rate.

show abstract

Optimized readout methods of silicon drift detectors for high-resolution X-ray spectroscopy

Cited by 51 publications

References 9 publications

Measuring the proton spectrum in neutron decay—Latest results with aSPECT

Measuring the proton spectrum in neutron decay—Latest results with aSPECT

A multi-channel ASIC for the readout of the HICAM gamma camera

Performance of Different Readout Topologies of Silicon Drift Detectors in PIXE Spectroscopy

Contact Info

Product

Resources

About