Dr. Xu Ji Profile

Dr. Xu Ji

SPIE Involvement:

Author

Publications (1)

This will count as one of your downloads.

You will have access to both the presentation and article (if available).

DOWNLOAD NOW

This content is available for download via your institution's subscription. To access this item, please sign in to your personal account.

Email or Username Forgot your username?

Password Forgot your password?

Show

Keep me signed in

No SPIE account? Create an account

Proceedings Article | 4 April 2022 Poster + Paper

An analytical model of energy response function for CdTe-based photon counting detectors with inter-pixel communication for anti-coincidence corrections

Xu Ji, Mang Feng, Ran Zhang, Guang-Hong Chen, Ke Li

Proceedings Volume 12031, 120314N (2022) https://doi.org/10.1117/12.2611848

KEYWORDS: X ray detectors, Systems modeling, X-rays, Compton scattering, Sensors, Tellurium, Cadmium, Scattering, Photon counting

Read Abstract +

In photon counting detectors (PCDs), the detected energy of an x-ray photon often deviates from its true energy due to a variety of reasons such as Compton scattering. For a given input x-ray energy or spectrum, the statistical distribution of the detected energy is referred to as the energy response function. Knowledge of the energy response function of a given PCD can greatly facilitate the evaluation of the spectral imaging performance and the optimization of PCD imaging systems. In this work, a physics-based analytical model of the energy response function of CdTe-based PCDs was developed. The model covers the whole diagnostic x-ray energy range and incorporates all relevant physical processes into consideration (e.g., K-fluorescence photon reabsorption or escape, Compton scattering). The model is applicable to PCDs operated under the anti-coincidence (i.e., anti-charge sharing) mode by modifying the parameters related to the severity of charge sharing. Those parameters can be experimentally calibrated to adapt the model to specific PCD systems. To validate the proposed model, experiments were performed using a CdTe-based PCD system. The results demonstrated that the model can accurately predict the PCD energy response functions of a variety of input x-ray spectra, under the anti-coincidence or the single pixel detection mode.

My Library

You currently do not have any folders to save your paper to! Create a new folder below.

Folder Name

Folder Description

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

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.

ORGANIZATIONAL
Sign in with credentials provided by your organization.

Organizational Username

Organizational Password

Show/Hide Password

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

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.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members:

Non-members: ADD TO CART

Keywords/Phrases

Search In:

Publication Years