Experimental searches for non-baryonic dark matter: WIMP direct detection

Morales, A.

doi:10.1016/s0920-5632(02)01482-2

Cited by 18 publications

(1 citation statement)

References 36 publications

(29 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The solution of several research problems, for example, the search for dark matter [1], the determination of the neutrino magnetic moment [2] and the coherent scattering of neutrinos by nuclei [3] requires the application of spectrometers with a very low energy detection threshold (<1 keV), and the greatest possible detection efficiency (with a large sensitive detector volume). One way to lower this threshold is the development of semiconductor detectors with internal proportional amplification of signals [4].…”

Section: Introductionmentioning

confidence: 99%

Si-detectors with internal proportional charge amplification

et al. 2017

View full text Add to dashboard Cite

The results of investigation of special strip and pixel detectors are presented. The possibility to achieve the internal amplification mode similar to proportional gas counters in a pixel detector made from n-type silicon is shown. An "amplified" peak at the energy 70 MeV with the energy resolution FWHM ~10 MeV is visible on the α-spectrum of 238 Pu (E α = 5.5 MeV). The real internal amplification effect (with a gain of 20) has been demonstrated with the detectors made from p-silicon. In this case, the detector could be used as a spectrometric device even in the amplification mode. The most important result of our investigation is the feasibility of efficient decrease of energy registration threshold for ionizing radiation in Si devices at room temperature. This effect has been achieved in the measurement with a 55 Fe source (E γ = 5.9 keV).

show abstract