Effect produced by the charge collection time upon the time and energy resolution of semiconductor detectors

1986 ◽  
Vol 248 (2-3) ◽  
pp. 405-415 ◽  
Author(s):  
V.A. Morozov ◽  
V.I. Stegailov ◽  
S.N. Yashin ◽  
V.G. Zinov
Keyword(s):  
Energy Resolution ◽  
Charge Collection ◽  
Semiconductor Detectors ◽  
Time And Energy ◽  
Collection Time

Parallel Detection of Electron Energy Loss Spectra in Direct Mode

1990 ◽  
Vol 48 (2) ◽  
pp. 82-83
Author(s):  
Eckhard Quandt ◽  
Stephan laBarré ◽  
Andreas Hartmann ◽  
Heinz Niedrig
Keyword(s):  
Energy Loss ◽  
Electron Energy ◽  
Energy Resolution ◽  
Large Angle ◽  
Maximum Energy ◽  
Semiconductor Detectors ◽  
Parallel Detection ◽  
Photodiode Arrays ◽  
Electron Energy Loss ◽  
Electron Energy Loss Spectra

Due to the development of semiconductor detectors with high spatial resolution -- e.g. charge coupled devices (CCDs) or photodiode arrays (PDAs) -- the parallel detection of electron energy loss spectra (EELS) has become an important alternative to serial registration. Using parallel detection for recording of energy spectroscopic large angle convergent beam patterns (LACBPs) special selected scattering vectors and small detection apertures lead to very low intensities. Therefore the very sensitive direct irradiation of a cooled linear PDA instead of the common combination of scintillator, fibre optic, and semiconductor has been investigated. In order to obtain a sufficient energy resolution the spectra are optionally magnified by a quadrupole-lens system.The detector used is a Hamamatsu S2304-512Q linear PDA with 512 diodes and removed quartz-glas window. The sensor size is 13 μm ∗ 2.5 mm with an element spacing of 25 μm. Along with the dispersion of 3.5 μm/eV at 40 keV the maximum energy resolution is limited to about 7 eV, so that a magnification system should be attached for experiments requiring a better resolution.

Cryogenic high-resolution X-ray spectrometers for SR-XRF and microanalysis

1998 ◽  
Vol 5 (3) ◽  
pp. 515-517 ◽  
Author(s):  
M. Frank ◽  
C. A. Mears ◽  
S. E. Labov ◽  
L. J. Hiller ◽  
J. B. le Grand ◽  
...  
Keyword(s):  
High Resolution ◽  
Energy Resolution ◽  
Superconducting Tunnel Junction ◽  
Semiconductor Detectors ◽  
X Rays ◽  
X Ray ◽  
Sr Xrf ◽  
Demonstration Experiment ◽  
Near Future ◽  
Stj Detector

Experimental results are presented obtained with a cryogenically cooled high-resolution X-ray spectrometer based on a 141 × 141 µm Nb-Al-Al2O3-Al-Nb superconducting tunnel junction (STJ) detector in an SR-XRF demonstration experiment. STJ detectors can operate at count rates approaching those of semiconductor detectors while still providing a significantly better energy resolution for soft X-rays. By measuring fluorescence X-rays from samples containing transition metals and low-Z elements, an FWHM energy resolution of 6–15 eV for X-rays in the energy range 180–1100 eV has been obtained. The results show that, in the near future, STJ detectors may prove very useful in XRF and microanalysis applications.

scholarly journals All-optical attosecond time domain interferometry

2020 ◽  
Author(s):  
Zhen Yang ◽  
Wei Cao ◽  
Yunlong Mo ◽  
Huiyao Xu ◽  
Kang Mi ◽  
...  
Keyword(s):  
Energy Resolution ◽  
Time Domain ◽  
Optical Pulse ◽  
Precision Measurements ◽  
Optical Interferometer ◽  
Transition Dipole ◽  
Interferometric Technique ◽  
All Optical ◽  
Energy Domain ◽  
Time And Energy

Abstract Interferometry, a key technique in modern precision measurements, has been used for length measurement in engineering metrology and astronomy. An analogous time-domain interferometric technique would represent a significant complement to spatial domain applications and require the manipulation of interference on extreme time and energy scales. Here, we report an all-optical interferometer using laser-driven high order harmonics as attosecond temporal slits. By controlling the phase of the temporal slits with an external field, a time domain interferometer that preserves attosecond temporal and hundreds of meV energy resolution is implemented. We apply this exceptional temporal resolution to reconstruct the waveform of an arbitrarily polarized optical pulse, and utilize the provided energy resolution to interrogate the abnormal character of the transition dipole near the Cooper minimum in argon. This novel attosecond interferometry paves the way for high precision measurements in the time energy domain using all-optical approaches.

Semi-Insulating InP Particle Detectors For X- And γ-Ray Detection

1997 ◽  
Vol 487 ◽  
Author(s):  
P. G. Pelfer ◽  
F. Dubecký ◽  
R. Fomari ◽  
M. Pikna ◽  
M. Krempaský ◽  
...  
Keyword(s):  
Electrical Properties ◽  
Energy Resolution ◽  
Collection Efficiency ◽  
Charge Collection ◽  
Back Contact ◽  
X Rays ◽  
Particle Detectors ◽  
Charge Collection Efficiency ◽  
Γ Ray ◽  
Α Particles

AbstractA study of electrical properties and detection performances of the semi-insulating (SI) InP based detectors is presented. Detectors with a top P+ layer and a Schottky back contact give the charge collection efficiency about 90 % and an energy resolution 3.7% (FWHM) for 5.48MeV α-particles at 250 K. Detection of X-rays (122 keV and 60 keV) photons in temperature region 220–250 K is demonstrated. Multiple peaking observed during detection of photons is discussed.

Montecarlo Simulation of Charge Collection Time in Closed Ended HP Ge Gamma Detectors

1984 ◽  
Vol 31 (1) ◽  
pp. 900-906
Author(s):  
Alessandro Alberigi Quaranta ◽  
Alessandra Catellani ◽  
Giorgio Pizziolo ◽  
Gianni Zanarini
Keyword(s):  
Charge Collection ◽  
Montecarlo Simulation ◽  
Collection Time ◽  
Gamma Detectors

scholarly journals Neutrinoless Double Beta Decay with Germanium Detectors: 1026 yr and Beyond

Universe ◽  
2021 ◽  
Vol 7 (9) ◽  
pp. 341
Author(s):  
Valerio D’Andrea ◽  
Natalia Di Marco ◽  
Matthias Bernhard Junker ◽  
Matthias Laubenstein ◽  
Carla Macolino ◽  
...  
Keyword(s):  
Energy Resolution ◽  
Half Life ◽  
Detection Efficiency ◽  
Background Level ◽  
Double Beta Decay ◽  
Semiconductor Detectors ◽  
Germanium Detectors ◽  
Highly Sensitive ◽  
High Detection Efficiency ◽  
Excellent Energy Resolution

In the global landscape of neutrinoless double beta (0νββ) decay search, the use of semiconductor germanium detectors provides many advantages. The excellent energy resolution, the negligible intrinsic radioactive contamination, the possibility of enriching the crystals up to 88% in the 76Ge isotope as well as the high detection efficiency, are all key ingredients for highly sensitive 0νββ decay search. The Majorana and Gerda experiments successfully implemented the use of germanium (Ge) semiconductor detectors, reaching an energy resolution of 2.53 ± 0.08 keV at the Qββ and an unprecedented low background level of 5.2×10−4 cts/(keV·kg·yr), respectively. In this paper, we will review the path of 0νββ decay search with Ge detectors from the original idea of E. Fiorini et al. in 1967, to the final recent results of the Gerda experiment setting a limit on the half-life of 76Ge 0νββ decay at T1/2>1.8×1026 yr (90% C.L.). We will then present the LEGEND project designed to reach a sensitivity to the half-life up to 1028 yr and beyond, opening the way to the exploration of the normal ordering region.

Sign in / Sign up

Export Citation Format

Share Document