Improved two-dimensional product imaging: The real-time ion-counting method

被引：177

作者：

Chang, BY ^{[1
]}

Hoetzlein, RC ^{[1
]}

Mueller, JA ^{[1
]}

Geiser, JD ^{[1
]}

Houston, PL ^{[1
]}

机构：

[1] Cornell Univ, Dept Chem, Ithaca, NY 14853 USA

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 1998年 / 69卷 / 04期

关键词：

D O I：

10.1063/1.1148824

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A novel ion-counting method for significantly improving the spatial resolution and detection sensitivity of two-dimensional product imaging in molecular beam experiments is presented. The method makes use of real-time digital image processing to retrieve, threshold, and determine the local maximum of each ion hitting a microchannel plate assembly. The current version can process data at rates up to 3.07 Mbyte/s, and methods for accelerating this rate are proposed. (C) 1998 American Institute of Physics.

引用

页码：1665 / 1670

页数：6

共 22 条

[1] STATE-RESOLVED DIFFERENTIAL CROSS-SECTIONS FOR CROSSED-BEAM AR-NO INELASTIC-SCATTERING BY DIRECT ION IMAGING
BONTUYAN, LS
SUITS, AG
HOUSTON, PL
WHITAKER, BJ
[J]. JOURNAL OF PHYSICAL CHEMISTRY, 1993, 97 (24) : 6342 - 6350
[2] CASTLEMAN K. R., 1996, Digital image processing
[3] TWO-DIMENSIONAL IMAGING OF STATE-SELECTED PHOTODISSOCIATION PRODUCTS DETECTED BY MULTIPHOTON IONIZATION
CHANDLER, DW
HOUSTON, PL
[J]. JOURNAL OF CHEMICAL PHYSICS, 1987, 87 (02) : 1445 - 1447
[4] DOUGHERTY ER, 1995, REAL TIME IMAGING
[5] Embree Paul M., 1995, C ALGORITHMS REAL TI
[6] Velocity map imaging of ions and electrons using electrostatic lenses: Application in photoelectron and photofragment ion imaging of molecular oxygen
Eppink, ATJB
Parker, DH
[J]. REVIEW OF SCIENTIFIC INSTRUMENTS, 1997, 68 (09) : 3477 - 3484
[7] THE PHOTOREACTION N2O-]O(1D) + N2(1-SIGMA) AT 193 NM STUDIED BY PHOTOFRAGMENT TRANSLATIONAL SPECTROSCOPY
FELDER, P
HAAS, BM
HUBER, JR
[J]. CHEMICAL PHYSICS LETTERS, 1991, 186 (2-3) : 177 - 182
[8] STATE-RESOLVED PHOTODISSOCIATION OF N2O
HANISCO, TF
KUMMEL, AC
[J]. JOURNAL OF PHYSICAL CHEMISTRY, 1993, 97 (28) : 7242 - 7246
[9] HECK AJR, 1995, ANNU REV PHYS CHEM, V46, P335, DOI 10.1146/annurev.pc.46.100195.002003
[10] SNAPSHOTS OF CHEMISTRY - PRODUCT IMAGING OF MOLECULAR REACTIONS
HOUSTON, PL
[J]. ACCOUNTS OF CHEMICAL RESEARCH, 1995, 28 (11) : 453 - 460

← 1 2 3 →