Characterizing a Mini Gamma Detector

E. Márquez-Quintos; E. Moreno-Barbosa; J. E. Espinosa; Benito de Celis Alonso; Margarita Amaro Aranda; R. Palomino Merino

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Characterizing a Mini Gamma Detector

机译：表征迷你伽马探测器

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There are several types of gamma radiation detectors, which have different characteristics depending on its use. We designed and instrumented a gamma detector for low energies of a small and portable size to obtain spectrum from radioactive sources and from that analyze each spectrum. This instrument basically consists of a scintillator crystal coupled to a SiPM this in turn coupled to a PCB card designed with capacitors and resistors for a better signal, a voltage source of 29 volts. For signal acquisition the system must be connected to an oscilloscope this in turn is controlled by a script developed in Python. For the calibration radioactive isotopes with the same dimensions were used, caesium-137 (Cs-137), cobalto-60 (Co-60), sodium-22 (Na-22) and manganese-54 (Mn-54) as gamma ray emission.

机译：有几种类型的伽马射线探测器，根据其用途具有不同的特性。我们为小型便携式尺寸的低能量设计并安装了伽马探测器，以便从放射源获取光谱并从中分析每个光谱。该仪器主要由闪烁体晶体和SiPM组成，SiPM依次与PCB卡相连，该PCB卡设计有电容器和电阻器以提供更好的信号（29伏电压源）。为了获取信号，必须将系统连接到示波器，这又由Python开发的脚本控制。对于标定尺寸相同的放射性同位素，使用铯137（Cs-137），钴60（Co-60），钠22（Na-22）和锰54（Mn-54）作为γ射线排放。

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《Journal of Nuclear Physics, Material Sciences, Radiation and Applications》 |2020年第2期|共5页
作者
E. Márquez-Quintos; E. Moreno-Barbosa; J. E. Espinosa; Benito de Celis Alonso; Margarita Amaro Aranda; R. Palomino Merino;
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中图分类物理学;
关键词
Gamma rayCrystal ScintillatorSpectrophotometerCalibration;

机译：伽马射线晶体闪烁分光光度计校准;

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7. Figure 1: (A–C) Example of annotation of chromosome 3R region by transitional gamma. For a given Hi-C matrix of Schneider-2 cells (A), TAD segmentations (B) are calculated by Armatus for a set of gamma values (from 0 to 10, a step of 0.01). Each line in B represents a single TAD. Then gamma transitional (C) is calculated for each genomic region as the minimal value of gamma where the region becomes inter-TAD or TAD boundary. The blue line in C represents the transitional gamma value for each genomic bin. The plots (B) and (C) are limited by gamma 2 for better visualization, although they are continued to the value of 10. Asterisk (*) denotes the region with gamma transitional of 1.64, the minimal value of gamma, where the corresponding region transitions from TAD to inter-TAD. (D) The histogram of the target value transitional gamma for Schneider-2 cell line. Note the peak at 10. [O] . -1

机译：图1：（A-C）通过过渡γ染色体3R区域注释的例子。对于给定的Hi-C矩阵的Schneider-2细胞（A），TAD分段（B）通过ARMATUS计算一组γ值（从0到10，步骤为0.01）。 B中的每一线代表单个TAD。然后针对每个基因组区域计算γ过渡（C），作为该区域变为TAD或TAD边界的伽马的最小值。 C中的蓝线表示每个基因组箱的过渡伽马值。图（b）和（c）受γ2的限制，以便更好地可视化，尽管它们持续到10.星号（*）表示具有1.64的伽马过渡的区域，伽玛的最小值，相应的伽玛区域从TAD转换到TAD。（d）施导德-2细胞系的靶值过渡γ的直方图。请注意10峰值。

Characterizing a Mini Gamma Detector

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