Time resolution improvement of superconducting NbN stripline detectors for time-of-flight mass spectrometry

被引：50

作者：

Suzuki, Koji ^{[1
]}

Miki, Shigehito ^{[2
]}

Shiki, Shigetomo ^{[1
]}

Wang, Zhen ^{[2
]}

Ohkubo, Masataka ^{[1
]}

机构：

[1] Natl Inst Adv Ind Sci & Technol, Res Inst Instrumentat Frontier, Tsukuba, Ibaraki 3058568, Japan

[2] Natl Inst Informat & Commun Technol, Kobe, Hyogo 6512492, Japan

来源：

APPLIED PHYSICS EXPRESS | 2008年 / 1卷 / 03期

关键词：

D O I：

10.1143/APEX.1.031702

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have applied superconducting stripline detectors (SSLDs) for time-of-flight mass spectrometry (TOF-MS) as molecule detectors. Two SSLDs, which consist of 7-nm-thick niobium nitride (NbN) striplines with different linewidths of 200 or 300nm on a MgO substrate, were fabricated to investigate the effects of kinetic inductance on time resolution. We have observed ultrafast ion detection signals with risetimes of 360-640ps, and successfully obtained mass spectra for a peptide, Angiotensin 1, and a protein, bovine serum albumin (BSA) at an energy of 17.5 keV. It has been confirmed that the response time is governed by the kinetic inductance of the nano-striplines. (C) 2008 The Japan Society of Applied Physics.

引用

页码：0317021 / 0317023

页数：3

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