Development and test of a multi-target transmission X-ray tube based on the electron deflection in an electric field

被引：1

作者：

Hei, Daqian ^{[1
]}

Jin, Limin ^{[2
]}

Jia, Wenbao ^{[2
,3
]}

Zhao, Lei ^{[2
]}

Sun, Aiyun ^{[2
]}

Xiong, Genchao ^{[2
]}

机构：

[1] Lanzhou Univ, Sch Nucl Sci & Technol, Tianshui South Rd 222, Lanzhou 730000, Peoples R China

[2] Nanjing Univ Aeronaut & Astronaut, Coll Mat Sci & Engn, Nanjing 211106, Peoples R China

[3] Jiangsu Higher Educ Inst, Collaborat Innovat Ctr Radiat Med, Suzhou 215000, Peoples R China

来源：

VACUUM | 2021年 / 193卷

关键词：

Multi targets X-ray tube; Electric field; Emission spectrum; Focal spot size; Pinhole camera method; TARGET;

D O I：

10.1016/j.vacuum.2021.110490

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The multitarget X-ray tube has special advantage for the X-ray fluorescence analysis of complex sample. The current paper reports on a four-target transmission X-ray tube based on the electron deflection in an electric field. It consists of four 90 degrees sector targets, which are Cr, Ni, Au, Mo. The electron trajectory is selectively bent by the deflection field to bombard the desired target. The emission spectrum was detected by the silicon drift detector (SDD) at 1.1 W (-22 kV, 50 mu A). The results showed the characteristic X-rays of the corresponding target produced clearly, especially for the Cr or Au target with a high intensity. The focal spot size was tested using the pinhole camera method. The results showed the electrons were bent effectively, the corrected area of real focal spot was between about 4 mm2 to 9 mm2. This multitarget X-ray tube will provide the selective X-ray spectrum of the application for the sample analysis.

引用

页数：6

共 14 条

[1] ENERGY-SELECTIVE RECONSTRUCTIONS IN X-RAY COMPUTERIZED TOMOGRAPHY [J].

ALVAREZ, RE ;

MACOVSKI, A .

PHYSICS IN MEDICINE AND BIOLOGY, 1976, 21 (05) :733-744

[2] FOCAL-SPOT MEASUREMENT - COMPARISON OF SLIT, PINHOLE, AND STAR RESOLUTION PATTERN TECHNIQUES [J].

EVERSON, JD ;

GRAY, JE .

RADIOLOGY, 1987, 165 (01) :261-264

[3] Novel multi-energy X-ray imaging methods: Experimental results of new image processing techniques to improve material separation in computed tomography and direct radiography [J].

Heckert, Mirko ;

Enghardt, Stefan ;

Bauch, Juergen .

PLOS ONE, 2020, 15 (05) :e0232403

[4]

Hershyn William, 1989, U. S. patent, Patent No. 4870671

[5] Optimization of X-ray target parameters for a high-brightness microfocus X-ray tube [J].

Ihsan, Aamir ;

Heo, Sung Hwan ;

Cho, Sung Oh .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 2007, 264 (02) :371-377

[6] An optimal design of X-ray target for uniform X-ray emission from an electronic brachytherapy system [J].

Ihsan, Aamir ;

Heo, Sung Hwan ;

Kim, Hyun Jin ;

Kang, Chang Mu ;

Cho, Sung Oh .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 2011, 269 (10) :1053-1057

[7] A microfocus X-ray tube based on a microstructured X-ray target [J].

Ihsan, Aamir ;

Heo, Sung Hwan ;

Cho, Sung Oh .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 2009, 267 (21-22) :3566-3573

[8] Note: Development of target changeable palm-top pyroelectric x-ray tube [J].

Imashuku, Susumu ;

Kawai, Jun .

REVIEW OF SCIENTIFIC INSTRUMENTS, 2012, 83 (01)

[9] Development of an X-ray tube with two selective targets modulated by a magnetic field [J].

Jin, Limin ;

Jia, Wenbao ;

Hei, Daqian ;

Zhang, Xinlei ;

Zhao, Lei .

REVIEW OF SCIENTIFIC INSTRUMENTS, 2019, 90 (08)

[10] Development of a micro-focus x-ray fluorescence spectrometer using multiple target anode monochromatic x-ray sources [J].

Maeo, S. ;

Kraemer, M. ;

Utaka, T. ;

Taniguchi, K. .

X-RAY SPECTROMETRY, 2009, 38 (04) :333-337

← 1 2 →