手持式伽马监测加压电离室的研制

IF 1.6 3区物理与天体物理 Q2 NUCLEAR SCIENCE & TECHNOLOGY

Radiation Measurements Pub Date : 2025-02-01 DOI:10.1016/j.radmeas.2025.107385

Recep Bıyık , Osman Alaçayır , Tamer Yalçın , Tuncay Tuna

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引用次数: 0

摘要

在本研究中，旨在设计和制造适合手持式辐射计探测器使用的尺寸电离室（IC）。在0.2 mR/h和6 R/h剂量率范围内进行的测量中，确定了剂量电流线性度很高（99%），在10 atm （130 psig）压力下电离电流灵敏度为1.7 x 10−7 A / R/h。在不同剂量率电离室的饱和特性研究中，观察到在施加腔电位≈200 V时达到平台区。采用双电压法和拟合技术分析了通用复合的效果。计算了两种方法在低剂量率和高剂量率（2mr /h- 5r /h）下电离室的收集效率因子，结果一致。所设计和制造的电离室管已被证明满足必要的标准，因此适用于手持式辐射计探测器。

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Development of A handheld pressurized ionization chamber for gamma monitoring

In this study, it is aimed to design and manufacture an ionization chamber (IC) in dimensions suitable for use in handheld radiation meter detectors. In the measurements made in the region of 0.2 mR/h and 6 R/h dose rates, it was determined that the dose current linearity was at high levels (99%) and the ionization current sensitivity was 1.7 x 10⁻⁷ A per R/h at 10 atm (130 psig) pressure. In the saturation characteristic study of the ionization chamber at different dose rates, it was observed that the plateau region was reached at ≈200 V applied chamber potential values. The effect of general recombination was analyzed by using two voltage method and fitting techniques. The collection efficiency factor of the ionization chamber at low and high dose rates (between 2 mR/h-5R/h) was calculated for both techniques and found to be in agreement. The designed and fabricated ionization chamber tube has been demonstrated to satisfy the requisite criteria and is thus suitable for utilization in handheld radiation meter detectors.

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来源期刊

Radiation Measurements 工程技术-核科学技术

CiteScore

4.10

自引率

20.00%

发文量

116

审稿时长

48 days

期刊介绍： The journal seeks to publish papers that present advances in the following areas: spontaneous and stimulated luminescence (including scintillating materials, thermoluminescence, and optically stimulated luminescence); electron spin resonance of natural and synthetic materials; the physics, design and performance of radiation measurements (including computational modelling such as electronic transport simulations); the novel basic aspects of radiation measurement in medical physics. Studies of energy-transfer phenomena, track physics and microdosimetry are also of interest to the journal. Applications relevant to the journal, particularly where they present novel detection techniques, novel analytical approaches or novel materials, include: personal dosimetry (including dosimetric quantities, active/electronic and passive monitoring techniques for photon, neutron and charged-particle exposures); environmental dosimetry (including methodological advances and predictive models related to radon, but generally excluding local survey results of radon where the main aim is to establish the radiation risk to populations); cosmic and high-energy radiation measurements (including dosimetry, space radiation effects, and single event upsets); dosimetry-based archaeological and Quaternary dating; dosimetry-based approaches to thermochronometry; accident and retrospective dosimetry (including activation detectors), and dosimetry and measurements related to medical applications.