The feasibility of a hydrogen implanted, direct band gap III-V semiconductors as new scintillators for fast neutron spectroscopy using the proton-recoil technique has been investigated. Direct band gap semiconductors have high radiative efficiency and have the potential of high photon yield per unit energy deposited, which are desirable features for a scintillator used for pulse height analysis. In this paper we present our computational results obtained using SRIM software for select materials. The expected depth profiles of implanted hydrogen ions have been applied to the n-p elastic recoil process in both InP and GaN. It is shown that, under ideal conditions, neutron irradiation of hydrogen implanted InP and GaN creates proton recoil scintillation with photon output being directly proportional to incoming neutron energy. It has been found that for the desirable dynamic range of neutron energies, loss to phonon creation in the lattice is negligible compared to energy used in electron excitation which results in the linear response in energy versus pulse height spectrum.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.