Measurement of Ion Mobilities for the Ion-TPC of NvDEx Experiment
In the N<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi>ν</mi></semantics></math></inline-formula>DEx collaboration, a high-pressure gas TPC is being developed to search for the neutr...
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| author | Tianyu Liang Meiqiang Zhan Hulin Wang Xianglun Wei Dongliang Zhang Jun Liu Chengui Lu Qiang Hu Yichen Yang Chaosong Gao Le Xiao Xiangming Sun Feng Liu Chengxin Zhao Hao Qiu Kai Chen |
| author_facet | Tianyu Liang Meiqiang Zhan Hulin Wang Xianglun Wei Dongliang Zhang Jun Liu Chengui Lu Qiang Hu Yichen Yang Chaosong Gao Le Xiao Xiangming Sun Feng Liu Chengxin Zhao Hao Qiu Kai Chen |
| author_sort | Tianyu Liang |
| collection | DOAJ |
| description | In the N<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi>ν</mi></semantics></math></inline-formula>DEx collaboration, a high-pressure gas TPC is being developed to search for the neutrinoless double beta decay. The use of electronegative <sup>82</sup>SeF<sub>6</sub> gas mandates an ion-TPC. The reconstruction of the <i>z</i> coordinate is to be realized by exploiting the feature of multiple species of charge carriers. As the initial stage of the development, we studied the properties of the <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mi>SF</mi><mn>6</mn></msub></semantics></math></inline-formula> gas, which is non-toxic and has a similar molecular structure to <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mi>SeF</mi><mn>6</mn></msub></semantics></math></inline-formula>. In the paper, we present the measurement of drift velocities and mobilities of the majority and minority negative charge carriers found in <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mi>SF</mi><mn>6</mn></msub></semantics></math></inline-formula> at a pressure of 750 Torr, slightly higher than the local atmospheric pressure. The reduced fields range between 3.0 and 5.5 Td. This was performed using a laser beam to ionize the gas inside a small TPC, with a drift length of 3.7 cm. A customized charge-sensitive amplifier was developed to read out the anode signals induced by the slowly drifting ions. The closure test of the reconstruction of the <i>z</i> coordinate using the difference in the velocities of the two carriers was also demonstrated. |
| format | Article |
| id | doaj-art-95e0f62cbee7465aad0e4e9125ffa9f1 |
| institution | OA Journals |
| issn | 2218-1997 |
| language | English |
| publishDate | 2025-05-01 |
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| spelling | doaj-art-95e0f62cbee7465aad0e4e9125ffa9f12025-08-20T02:33:58ZengMDPI AGUniverse2218-19972025-05-0111516310.3390/universe11050163Measurement of Ion Mobilities for the Ion-TPC of NvDEx ExperimentTianyu Liang0Meiqiang Zhan1Hulin Wang2Xianglun Wei3Dongliang Zhang4Jun Liu5Chengui Lu6Qiang Hu7Yichen Yang8Chaosong Gao9Le Xiao10Xiangming Sun11Feng Liu12Chengxin Zhao13Hao Qiu14Kai Chen15PLAC, Key Laboratory of Quark & Lepton Physics (MOE), Central China Normal University, 152 Luoyu Rd., Wuhan 430079, ChinaInstitute of Nuclear Science and Technology, Sichuan University, 29 Wangjiang Rd., Chengdu 610065, ChinaPLAC, Key Laboratory of Quark & Lepton Physics (MOE), Central China Normal University, 152 Luoyu Rd., Wuhan 430079, ChinaInstitute of Modern Physics, Chinese Academy of Sciences, 509 Nanchang Rd., Lanzhou 730000, ChinaPLAC, Key Laboratory of Quark & Lepton Physics (MOE), Central China Normal University, 152 Luoyu Rd., Wuhan 430079, ChinaPLAC, Key Laboratory of Quark & Lepton Physics (MOE), Central China Normal University, 152 Luoyu Rd., Wuhan 430079, ChinaInstitute of Modern Physics, Chinese Academy of Sciences, 509 Nanchang Rd., Lanzhou 730000, ChinaInstitute of Modern Physics, Chinese Academy of Sciences, 509 Nanchang Rd., Lanzhou 730000, ChinaInstitute of Modern Physics, Chinese Academy of Sciences, 509 Nanchang Rd., Lanzhou 730000, ChinaPLAC, Key Laboratory of Quark & Lepton Physics (MOE), Central China Normal University, 152 Luoyu Rd., Wuhan 430079, ChinaPLAC, Key Laboratory of Quark & Lepton Physics (MOE), Central China Normal University, 152 Luoyu Rd., Wuhan 430079, ChinaPLAC, Key Laboratory of Quark & Lepton Physics (MOE), Central China Normal University, 152 Luoyu Rd., Wuhan 430079, ChinaPLAC, Key Laboratory of Quark & Lepton Physics (MOE), Central China Normal University, 152 Luoyu Rd., Wuhan 430079, ChinaInstitute of Modern Physics, Chinese Academy of Sciences, 509 Nanchang Rd., Lanzhou 730000, ChinaInstitute of Modern Physics, Chinese Academy of Sciences, 509 Nanchang Rd., Lanzhou 730000, ChinaPLAC, Key Laboratory of Quark & Lepton Physics (MOE), Central China Normal University, 152 Luoyu Rd., Wuhan 430079, ChinaIn the N<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi>ν</mi></semantics></math></inline-formula>DEx collaboration, a high-pressure gas TPC is being developed to search for the neutrinoless double beta decay. The use of electronegative <sup>82</sup>SeF<sub>6</sub> gas mandates an ion-TPC. The reconstruction of the <i>z</i> coordinate is to be realized by exploiting the feature of multiple species of charge carriers. As the initial stage of the development, we studied the properties of the <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mi>SF</mi><mn>6</mn></msub></semantics></math></inline-formula> gas, which is non-toxic and has a similar molecular structure to <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mi>SeF</mi><mn>6</mn></msub></semantics></math></inline-formula>. In the paper, we present the measurement of drift velocities and mobilities of the majority and minority negative charge carriers found in <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mi>SF</mi><mn>6</mn></msub></semantics></math></inline-formula> at a pressure of 750 Torr, slightly higher than the local atmospheric pressure. The reduced fields range between 3.0 and 5.5 Td. This was performed using a laser beam to ionize the gas inside a small TPC, with a drift length of 3.7 cm. A customized charge-sensitive amplifier was developed to read out the anode signals induced by the slowly drifting ions. The closure test of the reconstruction of the <i>z</i> coordinate using the difference in the velocities of the two carriers was also demonstrated.https://www.mdpi.com/2218-1997/11/5/163double beta decay detectorsgaseous imaging and tracking detectorstime projection chambers (TPC)charge transport and multiplication in gas |
| spellingShingle | Tianyu Liang Meiqiang Zhan Hulin Wang Xianglun Wei Dongliang Zhang Jun Liu Chengui Lu Qiang Hu Yichen Yang Chaosong Gao Le Xiao Xiangming Sun Feng Liu Chengxin Zhao Hao Qiu Kai Chen Measurement of Ion Mobilities for the Ion-TPC of NvDEx Experiment Universe double beta decay detectors gaseous imaging and tracking detectors time projection chambers (TPC) charge transport and multiplication in gas |
| title | Measurement of Ion Mobilities for the Ion-TPC of NvDEx Experiment |
| title_full | Measurement of Ion Mobilities for the Ion-TPC of NvDEx Experiment |
| title_fullStr | Measurement of Ion Mobilities for the Ion-TPC of NvDEx Experiment |
| title_full_unstemmed | Measurement of Ion Mobilities for the Ion-TPC of NvDEx Experiment |
| title_short | Measurement of Ion Mobilities for the Ion-TPC of NvDEx Experiment |
| title_sort | measurement of ion mobilities for the ion tpc of nvdex experiment |
| topic | double beta decay detectors gaseous imaging and tracking detectors time projection chambers (TPC) charge transport and multiplication in gas |
| url | https://www.mdpi.com/2218-1997/11/5/163 |
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