5 research outputs found
Status and performance of the AMoRE-I experiment on neutrinoless double beta decay
AMoRE is an international project to search for the neutrinoless double beta
decay of Mo using a detection technology consisting of magnetic
microcalorimeters (MMCs) and molybdenum-based scintillating crystals. Data
collection has begun for the current AMORE-I phase of the project, an upgrade
from the previous pilot phase. AMoRE-I employs thirteen
CaMoO crystals and five LiMoO
crystals for a total crystal mass of 6.2 kg. Each detector module contains a
scintillating crystal with two MMC channels for heat and light detection. We
report the present status of the experiment and the performance of the detector
modules.Comment: 8 pages, 4 figures, published in Journal of Low Temperature Physics
(2022
Alcohol Use during Pregnancy: Considerations for Australian Policy
Although there is an extensive recorded history of concerns related to alcohol exposed pregnancies and possible outcomes of fetal alcohol spectrum disorder in recent scientific literature, Australia has only recently begun to accurately or systematically diagnose and record these conditions, or to provide comprehensive, coordinated, policy-guided funding, prevention, and treatment. This article discusses some considerations that can guide policy development within the Australian context including the social context and determinates of alcohol consumption during pregnancy and the need to consider the issue as one that goes beyond the decision making of individual women. The article also identifies the contribution of research to guide evidence-based policy development, including emerging evidence of epigenetics, and systematic reviews for prevention. Other policy considerations include costs, and the possibility of the prevention paradox applying to this field, with its associated impact on costs and focus of prevention
Characterization of hormonal receptors and human epidermal growth factor receptor-2 in tissues of women with breast cancer at Muhimbili National Hospital, Dar es salaam, Tanzania
A feasibility study of extruded plastic scintillator embedding WLS fiber for AMoRE-II muon veto
AMoRE-II is the second phase of the Advanced Molybdenum-based Rare process
Experiment aiming to search for the neutrino-less double beta decay of 100Mo
isotopes using ~ 200 kg of molybdenum-containing cryogenic detectors. The
AMoRE-II needs to keep the background level below 10-5 counts/keV/kg/year with
various methods to maximize the sensitivity. One of the methods is to have the
experiment be carried out deep underground free from the cosmic ray
backgrounds. The AMoRE-II will run at Yemilab with ~ 1,000 m depth. However,
even in such a deep underground environment, there are still survived cosmic
muons, which can affect the measurement and should be excluded as much as
possible. A muon veto detector is necessary to reject muon-induced particles
coming to the inner detector where the molybdate cryogenic detectors are
located. We have studied the possibility of using an extruded plastic
scintillator and wavelength shifting fiber together with SiPM as a muon veto
system. We found that the best configuration is two layers of plastic
scintillators (PSs, 150 cm x 25 cm x 1.2 cm) with two WLS fibers per groove,
which could separate radiogenic gammas well with muon detection efficiency
above 99.4% along the length of the PS. Based on the expected flux from a
prototype measurement at a 700 m deep underground, we found that the dead time
of the muon veto system for AMoRE-II at the Yemilab with a 1 ms veto window is
0.6% of whole muon events.Comment: 9 pages, 7 figures, 2 tables, accepted for publication at NIM