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Description
This paper presents the results of an experimental verification of the operability of a non-destructive position-sensitive electron beam profile detector developed for use at the MT-25 microtron (JINR, Dubna). The detector is based on recording currents induced by secondary electrons extracted from air in an electrostatic field and allows for the reconstruction of the transverse beam profile without its absorption or scattering.
For calibrating and verifying the measurement accuracy, a reference 16-channel system of ionization chambers mounted on a movable platform was used. The chambers sequentially scanned the beam in the horizontal plane, forming a detailed profile with high spatial resolution. The developed non-destructive profilometer was installed in front of the ionization chamber system, enabling simultaneous registration of the beam profile using both methods.
The conducted tests confirmed the detector's operability and its ability to correctly reproduce the shape of the transverse beam distribution. The measurement results showed good agreement with the data obtained using the ionization chambers, indicating the suitability of the developed device for non-invasive online monitoring of electron beam parameters at accelerators such as the MT-25.
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