Hostname: page-component-586b7cd67f-t7czq Total loading time: 0 Render date: 2024-11-28T17:10:55.528Z Has data issue: false hasContentIssue false
  • English
  • Français

Simulations of Charge Gain and Collection Efficiency from Diamond Amplifiers

Published online by Cambridge University Press:  31 January 2011

Dimitre A. Dimitrov ,
Richard Busby ,
John R. Cary ,
Ilan Ben-Zvi ,
John Smedley ,
Xiangyun Chang ,
Triveni Rao ,
Jeffrey W. Keister ,
Erik M. Muller  and
Andrew Burrill
Dimitre A. Dimitrov
Affiliation:
[email protected], Tech-X Corporation, Boulder, Colorado, United States
Richard Busby
Affiliation:
[email protected], Tech-X Corporation, Boulder, Colorado, United States
John R. Cary
Affiliation:
[email protected], Tech-X Corporation, Boulder, Colorado, United States
Ilan Ben-Zvi
Affiliation:
[email protected], Brookhaven National Laboratory, Upton, New York, United States
John Smedley
Affiliation:
[email protected], Brookhaven National Laboratory, Upton, New York, United States
Xiangyun Chang
Affiliation:
[email protected], Brookhaven National Laboratory, Upton, New York, United States
Triveni Rao
Affiliation:
[email protected], Brookhaven National Laboratory, Upton, New York, United States
Jeffrey W. Keister
Affiliation:
[email protected], Brookhaven National Laboratory, NSLS-II, 11973, New York, United States
Erik M. Muller
Affiliation:
[email protected], Brookhaven National Laboratory, Instrumentation Division, Building 535B, Upton, New York, 11973, United States
Andrew Burrill
Affiliation:
[email protected], Brookhaven National Laboratory, Upton, New York, United States
Get access

Abstract

A promising new concept of a diamond amplified photocathode for generation of high-current, high-brightness, and low thermal emittance electron beams was recently proposed and is currently under active development. To better understand the different effects involved, we have been developing models, within the VORPAL computational framework, to simulate secondary electron generation and charge transport in diamond. The implemented models include inelastic scattering of electrons and holes for generation of electron-hole pairs, elastic, phonon, and charge impurity scattering. We will discuss these models and present results from 3D VORPAL simulations on charge gain and collection efficiency as a function of primary electron energy and applied electric field. The implemented modeling capabilities already allow us to investigate specific effects and compare simulation results with experimental data.

Keywords

diamonddevicessimulation
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1203: Symposium J – Diamond Electronics and Bioelectronics-Fundamentals to Applications III , 2009 , 1203-J17-43
Copyright
Copyright © Materials Research Society 2010

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1 Ben-Zvi, I., Chang, X., Johnson, P. D., Kewisch, J., and Rao, T.. “Secondary emission enhanced photoinjector”. C-AD Accelerator Physics Report C-A/AP/149, BNL, (2004).Google Scholar
2 Chang, X., Ben-Zvi, I., Burrill, A., Grimes, J., Rao, T., Segalov, Z., Smedley, J., and Wu, Q., “Recent Progress on the Diamond Amplified Photo-cathode Experiment”. In Particle Accelerator Conference (PAC07), pp. 2044–6, IEEE (2007).Google Scholar
3 Chang, X., Ben-Zvi, I., Burrill, A., Kewisch, J., Muller, E., Rao, T., Segalov, Z., Smedley, J., Wang, E., Wang, Y., and Wu, Q., “First Observation of an Electron Beam Emitted From a Diamond Amplified Cathode”, In PAC09, IEEE (2009).Google Scholar
4 Yater, J. E. and Shih, A., “Secondary electron emission characteristics of single-crystal and polycrystalline diamond”, J. Appl. Phys. 87, pp. 8103–12 (2000) and the references by Yater, J. et al. there in.Google Scholar
5 Keister, J. and Smedley, J., “Single crystal diamond photodiode for soft x-ray radiometry”, Nucl. Instr. Meth. Phys. Res. A, 606, pp. 774–9 (2009).Google Scholar
6 Smedley, J., Keister, J. W., Muller, E., Jordan-Sweet, J., Bohon, J., Distel, J., Dong, B., “Diamond Photocathodes for X-ray Applications”, these proceedings.Google Scholar
7 Bohon, J., Smedley, J., Muller, E., and Keister, J. W., “Development of Diamond-Based X-ray Detection for high Flux Beamline Diagnostics”, these proceedings.Google Scholar
8 Dimitrov, D. A., Busby, R., Bruhwiler, D. L., Cary, J. R., Ben-Zvi, I., Rao, T., Chang, X., Smedley, J., and Wu, Q., “3D Simulations of Secondary Electron Generation and Transport in a Diamond Amplifier for Photocathodes”, In PAC07, pp. 3555–7, IEEE (2007).Google Scholar
9 Busby, R., Dimitrov, D. A., Cary, J. R., Ben-Zvi, I., Chang, X., Keister, J., Miller, E., Rao, T., Smedley, J., and Wu, Q., “3D Simulations of Secondary Electron Generation and Transport in Diamond Electron Beam Amplifiers”, In PAC09, IEEE (2009).Google Scholar
10 Nieter, C. and Cary, J., “VORPAL: a versatile plasma simulation code”, J. Comput. Phys., 196, pp. 448–73 (2004).Google Scholar
11 Ziaja, B., London, R. A., and Hajdu, J., “Unified model of secondary electron cascades in diamond”, J. Appl. Phys., 97, pp. 064905–1/9 (2005).Google Scholar
12 Jacoboni, C. and Reggiani, L., “The Monte Carlo method for the solution of charge transport in semiconductors with applications to covalent materials”, Rev. Mod. Phys., 55, pp. 645–705 (1983).Google Scholar
13 Watanabe, T., Teraji, T., Ito, T., Kamakura, Y., and Taniguchi, K., “Monte Carlo simulations of electron transport properties of diamond in high electric fields using full band structure”, J. Appl. Phys., 95, pp. 4866–74 (2004).Google Scholar
14 Keister, J. W., Smedley, J., Dimitrov, D. A., and Busby, R., “Charge Collection and Propagation in Diamond X-Ray Detectors”, submitted.Google Scholar