Alexander Novikov, Sergey Ulin, Valery Dmitrenko, Irina Chernysheva, Victor Grachev, Kira Krivova, Alexander Shustov, Ziyaetdin Uteshev, Konstantin Vlasik
The description of xenon gamma-ray spectrometers is presented. These devices can be produced with various sensitive volumes (0.2 – 6.0 liters), they provide high energy resolution (~2% at 662 keV) and are capable of operation in unfavorable conditions (wide temperature range and high level of vibro-acoustic influence). Xenon gamma-ray spectrometers can be used for various fundamental and applied tasks, the outcomes of those applications and the prospect of the detector utilization in various fields are also presented.
The description of gamma-spectrometric apparatus “Nuclide” intended for the detection and identification of elements of radioactive space debris is presented. This device is planned to be installed on the “Universat-SOCRAT” spacecraft. The results of estimations of the sensitivity of this equipment depending on the distance to the objects under study are presented.
Alexander Shustov, Sergey Ulin, Alexander Novikov, Valeriy Dmitrenko, Viktor Grachev, Irina Chernysheva, Ziyaetdin Uteshev, Konstantin Vlasik, Kira Krivova
Measurement results of charged particles (atmospheric muon) detection efficiency of a scintillation detector based on polyvinyltoluene, manufactured for the anticoincidence system of the "Signal" device as part of the scientific apparatus for the spacecraft "Interhelioprobe", are presented. The efficiency measurement technique is based on determination of the ratio of triple and double coincidence of the signals arising as atmospheric mu-mesons pass through the system of detectors. The results of light collection simulation in scintillation detectors by the use of Monte Carlo method are presented.
Xenon gamma-ray spectrometer for monitoring of 222Rn concentration by means of measurement of its daughter nuclei
gamma-ray emission intensity and the main characteristics of this device are presented. Time variations of radon
concentration can be interpreted as possible precursors of the Earth’s seismic activity, such as an earthquake, several
days prior to these events. The results of the first experiments that were carried out in the Caucasus region of Russia
show the possibility of using the described xenon gamma-ray spectrometer for this task.
A gamma-ray spectrometer for radioactive waste sorting is presented. The equipment is based on a new “thin-walled”
xenon gamma-ray detector with sensitive volume of 4 liters and a digital electronics unit. Use of the thin wall (0.5 mm of
stainless steel covered with fiberglass) provides lower absorption of gamma-rays by the detector’s walls and expansion
of the energy range of radiation being registered. The digital electronics unit makes it possible to use the equipment in
unfavorable field conditions such as high levels of acoustic influence.
Alexander Novikov, Sergey Ulin, Valery Dmitrenko, Victor Grachev, Viktor Stekhanov, Konstantin Vlasik, Ziyaetdin Uteshev, Irina Chernysheva, Alexander Shustov, Denis Petrenko
In the experiment SIGNAL, which is planned to take place on board spacecraft INTERHELIOPROBE, a xenon gammaray spectrometer is to be used. The gamma-ray spectrometer in question has been chosen because of its characteristics permitting detailed study of solar gamma-radiation under rough experimental conditions. The equipment is able to provide: high energy resolution (5-6-fold better than that of scintillation detectors), performance at high temperatures, steady operation under significant vibroacoustic load, and high radiation resistance of the working medium. The aforesaid properties of the xenon gamma-ray spectrometer meet goals and objectives of the experiment SIGNAL. The description of ballistics scenario and operation orbit of the INTERHELIOPROBE spacecraft (SC) are presented.
Alexander Novikov, Sergey E. Ulin, Irina Chernysheva, Valery Dmitrenko, Victor Grachev, Denis Petrenko, Alexander Shustov, Ziyaetdin Uteshev, Konstantin Vlasik
A description of the xenon detector (XD) for ecological applications is presented. The detector provides high energy resolution and is able to operate under extreme environmental conditions (wide temperature range and unfavorable acoustic action). Resistance to acoustic noise as well as improvement in energy resolution has been achieved by means of real-time digital pulse processing. Another important XD feature is the ionization chamber’s thin wall with composite housing, which significantly decreases the mass of the device and expands its energy range, especially at low energies.
Alexander Novikov, Sergey Ulin, Irina Chernysheva, Valery Dmitrenko, Victor Grachev, Denis Petrenko, Alexander Shustov, Ziyaetdin Uteshev, Konstantin Vlasik
A description of the xenon detector (XD) for gamma-ray line emission registration is presented. The detector provides high energy resolution and is able to operate under extreme environmental conditions (wide temperature range and unfavorable acoustic action). Resistance to acoustic noise as well as improvement in energy resolution has been achieved by means of real-time digital pulse processing. Another important XD feature is the ionization chamber’s thin wall with composite housing, which significantly decreases the mass of the device and expands its energy range, especially at low energies.
Alexander Novikov, Sergey Ulin, Valery Dmitrenko, Ziyaetdin Uteshev, Konstantin Vlasik, Victor Grachev, Yuri Efremenko, Irina Chernysheva, Alexander Shustov
KEYWORDS: Sensors, Gamma radiation, Acoustics, Xenon, Signal processing, Digital signal processing, Analog electronics, Signal detection, Spectroscopy, Field programmable gate arrays
Performance of a new modification of xenon gamma-ray detector (XGD) is presented. This detector differs from the previous ones by virtue of improved energy resolution (1.7±0.1)% at 662 keV and the ability to function in the presence of external acoustic noise (up to 100 dB) with virtually no degradation of spectrometric characteristics. These results have been achieved by developing a digital method of processing every electric signal coming from the XGD. For this method, digital electronics based on field-programmable gate array has also been developed.
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.