A Silicon 4π Spectrometer of β-Decay Electrons with Energies of up to 3 MeV

Precision β-spectra measurement always had a great importance in some fundamental physics problems including neutrino physics. Magnetic and electrostatic spectrometers have high resolution, but at the same time usage of such kinds of equipment involves the size and cost issues. Since electron mean free path at the energy of 3 MeV (which is basically the maximum energy of a β-transition for the long-lived nuclei) does not exceed 2 g/crn2 , electron registration could be effectively performed with the solid state scintillators and semiconductors. A strong probability of backscattering from detector surface is present in case of semiconductor detectors and is dependent upon the detector material. Such problem can be solved with 4π geometry detector development, which fully covers the radioactive source and is able to register the backscattered electrons. In this work we present the newly developed technology of 4π geometry β-spectrometer based on two semiconductor detectors. This spectrometer was used for measurement of the 144Ce - 144Pr spectrum, that is the perspective anti-neutrino source due to endpoint energy at 3 MeV and can be used for the sterile neutrino search experiments. The form-factor parameters that were obtained are: C(W) = 1 + (-0.02877 ± 0.00028)W + (-0.11722 ± 0.00297)W-1. The measurement accuracy was sufficiently enhanced with respect to the previous results.

show abstract

New measurement of the β-spectrum of ²¹⁰Bi with a silicon 4πβ-spectrometer

Alekseev

Бахланов

Derbin

et al. 2021

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

The shape of 210Bi β-spectrum was measured using a spectrometer based on Si(Li) detectors with a 4π geometry. Full absorption spectrometer allows for a direct measurement of the β-spectra without using the electron backscattering corrections for the response function. The measured value of nuclear shape factor C(W)=1+(-0.4378±0.0072)W+ (0.0526±0.0021) W2 is in agreement with the results of previous studies.

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

hi@scite.ai

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

A Silicon 4π Spectrometer of β-Decay Electrons with Energies of up to 3 MeV

Cited by 5 publications

References 14 publications

4π spectrometer of β-decay electrons with Si(Li)-detectors

4π spectrometer of β-decay electrons with Si(Li)-detectors

¹⁴⁴Ce - ¹⁴⁴Pr spectrum measurement with 4π semiconductor β-spectrometer

New measurement of the β-spectrum of ²¹⁰Bi with a silicon 4πβ-spectrometer

Contact Info

Product

Resources

About

A Silicon 4π Spectrometer of β-Decay Electrons with Energies of up to 3 MeV

Cited by 5 publications

References 14 publications

4π spectrometer of β-decay electrons with Si(Li)-detectors

4π spectrometer of β-decay electrons with Si(Li)-detectors

144Ce - 144Pr spectrum measurement with 4π semiconductor β-spectrometer

New measurement of the β-spectrum of 210Bi with a silicon 4πβ-spectrometer

Contact Info

Product

Resources

About

¹⁴⁴Ce - ¹⁴⁴Pr spectrum measurement with 4π semiconductor β-spectrometer

New measurement of the β-spectrum of ²¹⁰Bi with a silicon 4πβ-spectrometer