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首页> 外文会议>Brazilian Workshop on Nuclear Physics >From nGy to MGy - new dosimetry with LiF:Mg,Cu,P thermoluminescence detectors
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From nGy to MGy - new dosimetry with LiF:Mg,Cu,P thermoluminescence detectors

机译：从NGY到MGY - 带LIF的新剂量：Mg，Cu，P热辐发光探测器

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One of the well known advantages of thermoluminescence (TL) detectors made of lithium fluoride doped with magnesium, copper and phosphorus (LiF:Mg,Cu,P) is their very high sensitivity to ionizing radiation. LiF:Mg,Cu,P detectors enable measurements of radiation doses from tens of nanograys up to a few kilograys, when the total saturation of the signal of the so-called main dosimetric peak occurs. Only recently, unprecedented high-temperature emission of LiF detectors heated to temperatures up to 600°C, was observed after exposures to radiation doses ranging from 1 kGy to 1 MGy. For quantification of the glow-curve shape changes of LiF:Mg,Cu,P detectors in this range of doses and determination of the absorbed dose, the Ultra- High Temperature Ratio coefficient (UHTR) was defined. This newly established dosimetric method was tested in a range of radiation qualities, such as gamma radiation, electron and proton beams, thermal neutron fields and high-energy mixed fields around the SPS and PS accelerators at CERN. The new method for ultra-high dose range monitoring with a single LiF:Mg,Cu,P detector, which is capable of covering at least twelve orders of magnitude of doses, can be used for dosimetry at high energy accelerators, thermonuclear fusion technology facilities and has great potential for accident dosimetry in particular. A number of dosimetric sets with LiF:Mg,Cu,P detectors are currently installed around the LHC at CERN.
机译：热致发光（TL）探测器的众所周知的优点之一是掺杂有镁，铜和磷（LiF：Mg，Cu，P）的氟化锂制成的探测器是它们对电离辐射的非常高的敏感性。 LiF：Mg，Cu，P检测器使得当发生所谓的主剂量峰值的信号的总饱和时，从数十纳米射回到几千纳米的辐射剂量测量。最近，在暴露于1 kgy至1 mgy的辐射剂量范围内，才能观察到高达600°C的温度高达600℃的温度的下例的高温探测器。为了定量LiF的辉光曲线形状变化：Mg，Cu，P检测器在这种剂量范围和吸收剂量的测定范围内，定义了超高温系数系数（UHTR）。该新建立的剂量测定方法在一系列辐射品质中进行测试，例如伽马辐射，电子和质子束，热中子场和SPS和PS加速器周围的高能量混合场。具有单个LIF的超高剂量测量监测方法：Mg，Cu，P检测器，其能够覆盖至少12个剂量级，可用于高能量促进剂的剂量测定，热核融合技术设施特别是特别是小型剂量的潜力。具有LIF的许多剂量态集：MG，CU，P检测器目前在CERN的LHC周围安装。

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