A time-of-flight correction procedure for fast-timing data of recoils with varying implantation positions at a spectrometer focal plane

Mallaburn M. J.; Singh B. S. Nara; Cullen D. M.; Hodge D.; Taylor M. J.; Giles M. M.; Barber L.; Nita C. R.; Mihai R. E.; Mihai C.; Marginean R.; Marginean N.; Nobs C. R.; Gamba E. R.; Bruce A. M.; Scholey C.; Rahkila P.; Greenlees P. T.; Badran H.; Grahn T.; Neuvonen O.; Auranen K.; Bisso F.; Cox D. M.; Herzan A.; Julin R.; Konki J.; Lightfoot A. K.; Pakarinen J.; Papadakis P.; Partanen J.; Sandzelius M.; Saren J.; Sorri J.; Stolze S.; Uusitalo J.; Regan P. H.; Podolyak Zs; Lalkovski S.; Smith J. F.; Smolen M.

首页> 外文期刊>Nuclear Instruments & Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment >A time-of-flight correction procedure for fast-timing data of recoils with varying implantation positions at a spectrometer focal plane

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A time-of-flight correction procedure for fast-timing data of recoils with varying implantation positions at a spectrometer focal plane

机译：飞行时间校正程序，用于在光谱仪焦平面上具有不同植入位置的后坐力快速定时数据

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Fast-timing measurements at the focal plane of a separator can suffer from poor timing resolution. This is due to the variations in time-of-flight (ToF) for photons travelling to a given detector, which arise from the changes in the implantation positions of the recoil nuclei emitting the gamma rays of interest. In order to minimise these effects on timing measurements, a procedure is presented that improves fast-timing data by performing ToF corrections on an event-by-event basis. This method was used to correct data collected with an array of eight LaBr3 detectors, which detected gamma rays from spatially distributed(138)Gd recoil-implants at the focal plane of the Recoil-Ion-Transport-Unit (RITU) spectrometer. The Generalised Centroid Difference (GCD) method was used to extract a lifetime from data in conjunction with a new procedure to calibrate the time walk. The lifetime of the first 2(+) state in(138)Gd, populated by the decay of the K-pi = 8(-) isomeric state, was measured to be 229(24) ps using the ToF-corrected data, which is consistent within three standard deviations to the literature value. The results together with Monte-Carlo simulations show that the ToF correction procedure reduced the uncertainty in the measured lifetimes by 3 % in the case of the spatially distributed nuclei at the focal plane of RITU. However, similar to 12 % has been estimated for a similar experiment when using a larger focal plane i.e. the Super-FRS at the FAIR facility.

机译：在分离器焦平面上进行的快速定时测量可能会遇到时序分辨率差的问题。这是由于传播到给定检测器的光子的飞行时间（ToF）变化，这是由发射感兴趣的伽马射线的反冲核的注入位置的变化引起的。为了最小化这些对时序测量的影响，提出了一种通过逐个事件执行ToF校正来改善快速定时数据的过程。该方法用于校正由八个LaBr3检测器组成的阵列收集的数据，这些检测器从反冲离子运输单元（RITU）光谱仪焦平面处的空间分布的（138）Gd后坐植入物检测到伽马射线。广义质心差（GCD）方法与一种新的校准时差程序一起用于从数据中提取生命周期。使用ToF校正的数据测得（138）Gd中第一个2（+）态的寿命由K-pi = 8（-）异构态的衰变所填充，其寿命为229（24）ps。与文献值在三个标准偏差内保持一致。结果与蒙特卡洛模拟一起表明，在RITU焦平面上空间分布的原子核的情况下，ToF校正程序将测量寿命的不确定性降低了3％。然而，当在FAIR设施中使用更大的焦平面（即Super-FRS）时，对于类似的实验，估计约为12％。

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《Nuclear Instruments & Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment》 |2019年第21期|18-29|共12页
作者
Mallaburn M. J.; Singh B. S. Nara; Cullen D. M.; Hodge D.; Taylor M. J.; Giles M. M.; Barber L.; Nita C. R.; Mihai R. E.; Mihai C.; Marginean R.; Marginean N.; Nobs C. R.; Gamba E. R.; Bruce A. M.; Scholey C.; Rahkila P.; Greenlees P. T.; Badran H.; Grahn T.; Neuvonen O.; Auranen K.; Bisso F.; Cox D. M.; Herzan A.; Julin R.; Konki J.; Lightfoot A. K.; Pakarinen J.; Papadakis P.; Partanen J.; Sandzelius M.; Saren J.; Sorri J.; Stolze S.; Uusitalo J.; Regan P. H.; Podolyak Zs; Lalkovski S.; Smith J. F.; Smolen M.;
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作者单位

Univ Manchester, Sch Phys & Astron, Schuster Bldg, Manchester M13 9PL, Lancs, England;

Univ Manchester, Sch Phys & Astron, Schuster Bldg, Manchester M13 9PL, Lancs, England;

Univ Manchester, Sch Phys & Astron, Schuster Bldg, Manchester M13 9PL, Lancs, England;

Univ Manchester, Sch Phys & Astron, Schuster Bldg, Manchester M13 9PL, Lancs, England;

Univ Manchester, Sch Phys & Astron, Schuster Bldg, Manchester M13 9PL, Lancs, England;

Univ Manchester, Sch Phys & Astron, Schuster Bldg, Manchester M13 9PL, Lancs, England;

Univ Manchester, Sch Phys & Astron, Schuster Bldg, Manchester M13 9PL, Lancs, England;

Horia Hulubei Natl Inst Phys & Nucl Engn, RO-077125 Bucharest, Romania;

Horia Hulubei Natl Inst Phys & Nucl Engn, RO-077125 Bucharest, Romania;

Horia Hulubei Natl Inst Phys & Nucl Engn, RO-077125 Bucharest, Romania;

Horia Hulubei Natl Inst Phys & Nucl Engn, RO-077125 Bucharest, Romania;

Horia Hulubei Natl Inst Phys & Nucl Engn, RO-077125 Bucharest, Romania;

Univ Brighton, Sch Comp Engn & Math, Brighton BN2 4GJ, E Sussex, England;

Univ Brighton, Sch Comp Engn & Math, Brighton BN2 4GJ, E Sussex, England;

Univ Brighton, Sch Comp Engn & Math, Brighton BN2 4GJ, E Sussex, England;

Univ Jyvaskyla, POB 35, FI-40014 Jyvaskyla, Finland;

Univ Jyvaskyla, POB 35, FI-40014 Jyvaskyla, Finland;

Univ Jyvaskyla, POB 35, FI-40014 Jyvaskyla, Finland;

Univ Jyvaskyla, POB 35, FI-40014 Jyvaskyla, Finland;

Univ Jyvaskyla, POB 35, FI-40014 Jyvaskyla, Finland;

Univ Jyvaskyla, POB 35, FI-40014 Jyvaskyla, Finland;

Univ Jyvaskyla, POB 35, FI-40014 Jyvaskyla, Finland;

Univ Jyvaskyla, POB 35, FI-40014 Jyvaskyla, Finland;

Univ Jyvaskyla, POB 35, FI-40014 Jyvaskyla, Finland;

Univ Jyvaskyla, POB 35, FI-40014 Jyvaskyla, Finland;

Univ Jyvaskyla, POB 35, FI-40014 Jyvaskyla, Finland;

Univ Jyvaskyla, POB 35, FI-40014 Jyvaskyla, Finland;

Univ Jyvaskyla, POB 35, FI-40014 Jyvaskyla, Finland;

Univ Jyvaskyla, POB 35, FI-40014 Jyvaskyla, Finland;

Univ Jyvaskyla, POB 35, FI-40014 Jyvaskyla, Finland;

Univ Jyvaskyla, POB 35, FI-40014 Jyvaskyla, Finland;

Univ Jyvaskyla, POB 35, FI-40014 Jyvaskyla, Finland;

Univ Jyvaskyla, POB 35, FI-40014 Jyvaskyla, Finland;

Univ Jyvaskyla, POB 35, FI-40014 Jyvaskyla, Finland;

Univ Jyvaskyla, POB 35, FI-40014 Jyvaskyla, Finland;

Univ Jyvaskyla, POB 35, FI-40014 Jyvaskyla, Finland;

Univ Surrey, Fac Engn & Phys Sci, Dept Phys, Guildford GU2 7XH, Surrey, England;

Univ Surrey, Fac Engn & Phys Sci, Dept Phys, Guildford GU2 7XH, Surrey, England;

Univ Surrey, Fac Engn & Phys Sci, Dept Phys, Guildford GU2 7XH, Surrey, England;

Univ West Scotland, Sch Engn & Comp, Paisley PA1 2BE, Renfrew, Scotland;

Univ West Scotland, Sch Engn & Comp, Paisley PA1 2BE, Renfrew, Scotland;

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关键词
Gd-138; Nuclear-state lifetimes; Fast-timing; Distributed source; Generalised-centroid-difference method; LaBr3 detectors;

机译：Gd-138;核态寿命;快速定时;分布式光源;广义质心差法;LaBr3探测器;

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专利

1. A time-of-flight correction procedure for fast-timing data of recoils with varying implantation positions at a spectrometer focal plane [J] . Mallaburn M. J., Singh B. S. Nara, Cullen D. M., Nuclear Instruments & Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment . 2019,第Jul21期

机译：用于在光谱仪焦平面上具有不同植入位置的反冲快速定时数据的飞行时间校正过程
2. Correction of interferogram data acquired using a focal plane FT-IR spectrometer system [J] . Gao Cong, Mao Jianhua, Chen Ren Applied optics . 2018,第10期

机译：使用焦平面FT-IR光谱仪系统获取的干扰图数据的校正
3. A new detector system for radioactive ion beam experiments at the focal plane of the recoil mass spectrometer HIRA at NSC [J] . Akhil Jhingan, P. Sugathan, S. Barua, Nuclear Instruments & Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment . 2004,第3期

机译：在NSC的反冲质谱仪HIRA焦平面上进行放射性离子束实验的新探测器系统
4. Spectroscopy of transfermium nuclei using theGABRIELA set up at the focal plane of theVASSILISSA recoil separator [C] . K. Hauschild, A. Lopez-Martens, O. Dorvaux, Tours Symposium on Nuclear Physics and Astrophysics . 2010

机译：使用在瓦西利斯雷诺分离器的焦平面上设置的转移核的光谱学
5. POSITION, VELOCITY, AND ACCELERATION ANALYSIS AND KINEMATIC SYNTHESIS OF PLANE AND SPACE MECHANISMS BY A GENERALIZED PROCEDURE CALLED THE METHOD OF INDEPENDENT POSITION EQUATIONS. [D] . RAVEN, FRANCIS HARVEY. 1958

机译：平面过程的位置，速度和加速度分析以及平面和空间机理的运动合成，采用独立位置方程方法进行了计算。
6. How Does TKA Kinematics Vary With Transverse Plane Alignment Changes in a Contemporary Implant? [O] . William M. Mihalko, Devin J. Conner, Rodney Benner, 2012

机译：在现代植入物中TKA运动学如何随着横向平面对齐的变化而变化？
7. Side-Slither Data-Based Vignetting Correction of High-Resolution Spaceborne Camera with Optical Focal Plane Assembly [O] . Chaochao Chen, Jun Pan, Mi Wang, 2018

机译：基于侧滑动数据的高分辨率空间相机与光学焦平面组件的侧滑动矫正
8. Combined Proton-Recoil and Neutron Time-of-Flight Spectrometer for 14 MeV Neutrons [R] . Grosshoeg, G., Aronsson, D., Arvidsson, E., 1983

机译：用于14 meV中子的质子 - 反冲和中子飞行时间谱仪

A time-of-flight correction procedure for fast-timing data of recoils with varying implantation positions at a spectrometer focal plane

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