Abstract
Given the large size of the CsI[Na] detector, a crucial calibration was to probe the light collection uniformity along the crystal. A 241Am source was placed on the outside of the copper can at nine equally spaced positions along the length of the CsI[Na] detector to measure the light collection uniformity in the CsI[Na] crystal. The main γ-ray emission of this isotope only carries an energy of E γ = 59.54 keV. This low energy ensures that interactions with the crystal occur in close vicinity to the source location. As a result, only a small volume of the crystal is irradiated for each source location. Comparing the total light yield, i.e., the number of SPE produced per unit energy, found at each position provides a measure for the nonuniformity in the detector response.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
E. Bellamy, G. Bellettini, J. Budagov et al., Absolute calibration and monitoring of a spectrometric channel using a photomultiplier. Nucl. Instrum. Methods Phys. Res. Sect. A Accel. Spectrom. Detect. Assoc. Equip. 339(3), 468–476 (1994). http://www.sciencedirect.com/science/article/pii/016890029490183X
E. Enterprises. Understanding Photomultipliers. Online (2011). http://www.et-enterprises.com/files/file/Understanding-photomultipliers.pdf
X. Luo, V. Modamio, J. Nyberg et al., Test of digital neutron–gamma discrimination with four different photomultiplier tubes for the NEutron Detector Array (NEDA). Nucl. Instrum. Methods Phys. Res. Sect. A Accel. Spectrom. Detect. Assoc. Equip. 767, 83–91 (2014)
K. Ma, W. Kang, J. Ahn et al., Time and amplitude of afterpulse measured with a large size photomultiplier tube. Nucl. Instrum. Methods Phys. Res. Sect. A Accel. Spectrom. Detect. Assoc. Equip. 629(1), 93–100 (2011). http://www.sciencedirect.com/science/article/pii/S0168900210026306
K.S. Olsen, Improvements to the resolution and efficiency of the DEAP-3600 dark matter detector and their effects on background studies (2010). Master’s thesis
Peak Detection Using LabVIEW and Measurement Studio (2017). http://www.ni.com/white-paper/3770/en/
J.R. Prescott, A statistical model for photomultiplier single-electron statistics. Nucl. Instrum. Methods 39(1), 173–179 (1966)
E. Ronchi, P.-A. Söderström, J. Nyberg et al., An artificial neural network based neutron–gamma discrimination and pile-up rejection framework for the BC-501 liquid scintillation detector. Nucl. Instrum. Methods Phys. Res. Sect. A Accel. Spectrom. Detect. Assoc. Equip. 610(2), 534–539 (2009)
S. Roodbergen, R. Kroondijk, H. Verheul, Cherenkov radiation in photomultiplier windows and the resulting time shift in delayed coincidence time spectra. Nucl. Instrum. Methods 105(3), 551 – 555 (1972). http://www.sciencedirect.com/science/article/pii/0029554X72903539
Author information
Authors and Affiliations
Rights and permissions
Copyright information
© 2018 Springer Nature Switzerland AG
About this chapter
Cite this chapter
Scholz, B. (2018). Light Yield and Light Collection Uniformity. In: First Observation of Coherent Elastic Neutrino-Nucleus Scattering. Springer Theses. Springer, Cham. https://doi.org/10.1007/978-3-319-99747-6_6
Download citation
DOI: https://doi.org/10.1007/978-3-319-99747-6_6
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-99746-9
Online ISBN: 978-3-319-99747-6
eBook Packages: Physics and AstronomyPhysics and Astronomy (R0)