Use of charge-coupled device imagers for charged-particle spectroscopy
- Lincoln Laboratory, Massachusetts Institute of Technology, Lexington, Massachusetts 02173 (United States)
- Plasma Fusion Center, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States)
We describe preliminary experiments designed to demonstrate the use of charge-coupled device (CCD) imagers as spectroscopic detectors of charged particles. A large-area front-illuminated imager made on p/p{sup +} epitaxial material was irradiated with {alpha} particles with energies up to 5.5 MeV and protons up to 13 MeV. The charge per event agrees reasonably well with calculations that assume a collection zone comprising the p epilayer and the portion of the p{sup +} substrate within a diffusion length of the p epilayer. The charge per event for these particles is relatively large, often exceeding the CCD well capacity in the case of {alpha} particles, and therefore some of the stressing requirements of other applications, such as low dark current and low read noise, are not essential in this case. The results indicate that CCD imagers are excellent candidates for applications such as charged-particle diagnostics of inertial confinement fusion implosions. {copyright} {ital 1997 American Institute of Physics.}
- OSTI ID:
- 451813
- Report Number(s):
- CONF-960543--
- Journal Information:
- Review of Scientific Instruments, Journal Name: Review of Scientific Instruments Journal Issue: 1 Vol. 68; ISSN 0034-6748; ISSN RSINAK
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ALPHA SPECTROMETERS
ALPHA SPECTROSCOPY
CCD image sensors
CHARGE-COUPLED DEVICES
DESIGN
DIFFUSION
DIFFUSION LENGTH
ENERGY SPECTRA
INERTIAL CONFINEMENT
MEV RANGE 01-10
MEV RANGE 10-100
PLASMA DIAGNOSTICS
PROTON DETECTION
PROTON SPECTROMETERS
PROTONS
SOFT X RADIATION
USES
alpha-particle detection
alpha-particle spectrometers
plasma inertial confinement