18 research outputs found
Experimental complex for investigation of construction materials on the helium ions linear accelerator
The paper describes the experimental complex for the helium ions linear accelerator consisting of an irradiation chamber, sensors, analog signal converters (ADC) and a computer with a program for processing experimental data and then outputting it to a display. The complex is intended for carrying out experimental works on the study of the physical properties of structural materials used in nuclear power plants and nuclear fusion reactors. The complex was tested under the irradiation of titanium dioxide (TiOβ) with helium ions energies of 0.12 and 4 MeV. The experimental data of the TiOβ electrophysical characteristics are presented, which confirm the expediency of using the complex to study the properties of materials used in high-power radiation fields.ΠΠ°Π²Π΅Π΄Π΅Π½ΠΎ ΠΎΠΏΠΈΡ Π΅ΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΠΎΠ³ΠΎ ΠΊΠΎΠΌΠΏΠ»Π΅ΠΊΡΡ Π»ΡΠ½ΡΠΉΠ½ΠΎΠ³ΠΎ ΠΏΡΠΈΡΠΊΠΎΡΡΠ²Π°ΡΠ° ΡΠΎΠ½ΡΠ² Π³Π΅Π»ΡΡ, ΡΠΎ ΡΠΊΠ»Π°Π΄Π°ΡΡΡΡΡ Π· ΠΊΠ°ΠΌΠ΅ΡΠΈ ΠΎΠΏΡΠΎΠΌΡΠ½Π΅Π½Π½Ρ, Π΄Π°ΡΡΠΈΠΊΡΠ², ΠΊΠΎΠ½Π²Π΅ΡΡΠ΅ΡΡΠ² ΡΠΈΠ³Π½Π°Π»ΡΠ² (ΠΠ¦Π) Ρ ΠΠΠ Π· ΠΏΡΠΎΠ³ΡΠ°ΠΌΠΎΡ ΠΎΠ±ΡΠΎΠ±ΠΊΠΈ Π΅ΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΠΈΡ
Π΄Π°Π½ΠΈΡ
Π· ΠΏΠΎΠ΄Π°Π»ΡΡΠΈΠΌ Π²ΡΠ΄ΠΎΠ±ΡΠ°ΠΆΠ΅Π½Π½ΡΠΌ ΡΡ
Π½Π° Π΄ΠΈΡΠΏΠ»Π΅Ρ. ΠΠΎΠΌΠΏΠ»Π΅ΠΊΡ ΠΏΡΠΈΠ·Π½Π°ΡΠ΅Π½ΠΈΠΉ Π΄Π»Ρ ΠΏΡΠΎΠ²Π΅Π΄Π΅Π½Π½Ρ Π΅ΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΠΈΡ
ΡΠΎΠ±ΡΡ Π· Π²ΠΈΠ²ΡΠ΅Π½Π½Ρ ΡΡΠ·ΠΈΡΠ½ΠΈΡ
Π²Π»Π°ΡΡΠΈΠ²ΠΎΡΡΠ΅ΠΉ ΠΊΠΎΠ½ΡΡΡΡΠΊΡΡΠΉΠ½ΠΈΡ
ΠΌΠ°ΡΠ΅ΡΡΠ°Π»ΡΠ², ΡΠΎ Π·Π°ΡΡΠΎΡΠΎΠ²ΡΡΡΡΡΡ Π½Π° ΠΠΠ‘ Ρ Π’Π―Π . ΠΡΠΎΠ²Π΅Π΄Π΅Π½ΠΎ ΡΠ΅ΡΡΡΠ²Π°Π½Π½Ρ ΠΊΠΎΠΌΠΏΠ»Π΅ΠΊΡΡ ΠΏΡΠΈ ΠΎΠΏΡΠΎΠΌΡΠ½Π΅Π½Π½Ρ Π΄Π²ΠΎΠΎΠΊΠΈΡΡ ΡΠΈΡΠ°Π½Ρ (TiOβ) ΡΠΎΠ½Π°ΠΌΠΈ Π³Π΅Π»ΡΡ Π· Π΅Π½Π΅ΡΠ³ΡΡΠΌΠΈ 0,12 Ρ 4 ΠΠ΅Π. ΠΠ°Π²Π΅Π΄Π΅Π½ΠΎ Π΅ΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½Ρ Π΄Π°Π½Ρ Π΅Π»Π΅ΠΊΡΡΠΎΡΡΠ·ΠΈΡΠ½ΠΈΡ
Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΡΠΈΠΊ TiOβ, ΡΠΎ ΠΏΡΠ΄ΡΠ²Π΅ΡΠ΄ΠΆΡΡΡΡ Π΄ΠΎΡΡΠ»ΡΠ½ΡΡΡΡ Π²ΠΈΠΊΠΎΡΠΈΡΡΠ°Π½Π½Ρ ΠΊΠΎΠΌΠΏΠ»Π΅ΠΊΡΡ Π΄Π»Ρ Π²ΠΈΠ²ΡΠ΅Π½Π½Ρ Π²Π»Π°ΡΡΠΈΠ²ΠΎΡΡΠ΅ΠΉ ΠΌΠ°ΡΠ΅ΡΡΠ°Π»ΡΠ², ΡΠΎ Π·Π°ΡΡΠΎΡΠΎΠ²ΡΡΡΡΡΡ Π² ΡΠΌΠΎΠ²Π°Ρ
ΠΏΠΎΡΡΠΆΠ½ΠΈΡ
ΡΠ°Π΄ΡΠ°ΡΡΠΉΠ½ΠΈΡ
ΠΏΠΎΠ»ΡΠ².ΠΡΠΈΠ²Π΅Π΄Π΅Π½ΠΎ ΠΎΠΏΠΈΡΠ°Π½ΠΈΠ΅ ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΠΎΠ³ΠΎ ΠΊΠΎΠΌΠΏΠ»Π΅ΠΊΡΠ° Π»ΠΈΠ½Π΅ΠΉΠ½ΠΎΠ³ΠΎ ΡΡΠΊΠΎΡΠΈΡΠ΅Π»Ρ ΠΈΠΎΠ½ΠΎΠ² Π³Π΅Π»ΠΈΡ, ΠΊΠΎΡΠΎΡΡΠΉ ΡΠΎΡΡΠΎΠΈΡ ΠΈΠ· ΠΊΠ°ΠΌΠ΅ΡΡ ΠΎΠ±Π»ΡΡΠ΅Π½ΠΈΡ, Π΄Π°ΡΡΠΈΠΊΠΎΠ², ΠΊΠΎΠ½Π²Π΅ΡΡΠ΅ΡΠΎΠ² ΡΠΈΠ³Π½Π°Π»ΠΎΠ² (ΠΠ¦Π) ΠΈ ΠΠΠ Ρ ΠΏΡΠΎΠ³ΡΠ°ΠΌΠΌΠΎΠΉ ΠΎΠ±ΡΠ°Π±ΠΎΡΠΊΠΈ ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΡΡ
Π΄Π°Π½Π½ΡΡ
Ρ ΠΏΠΎΡΠ»Π΅Π΄ΡΡΡΠΈΠΌ ΠΎΡΠΎΠ±ΡΠ°ΠΆΠ΅Π½ΠΈΠ΅ΠΌ ΠΈΡ
Π½Π° Π΄ΠΈΡΠΏΠ»Π΅Π΅. ΠΠΎΠΌΠΏΠ»Π΅ΠΊΡ ΠΏΡΠ΅Π΄Π½Π°Π·Π½Π°ΡΠ΅Π½ Π΄Π»Ρ ΠΏΡΠΎΠ²Π΅Π΄Π΅Π½ΠΈΡ ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΡΡ
ΡΠ°Π±ΠΎΡ ΠΏΠΎ ΠΈΠ·ΡΡΠ΅Π½ΠΈΡ ΡΠΈΠ·ΠΈΡΠ΅ΡΠΊΠΈΡ
ΡΠ²ΠΎΠΉΡΡΠ² ΠΊΠΎΠ½ΡΡΡΡΠΊΡΠΈΠΎΠ½Π½ΡΡ
ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»ΠΎΠ², ΠΏΡΠΈΠΌΠ΅Π½ΡΠ΅ΠΌΡΡ
Π½Π° ΠΠΠ‘ ΠΈ Π’Π―Π . ΠΡΠΎΠ²Π΅Π΄Π΅Π½ΠΎ ΡΠ΅ΡΡΠΈΡΠΎΠ²Π°Π½ΠΈΠ΅ ΠΊΠΎΠΌΠΏΠ»Π΅ΠΊΡΠ° ΠΏΡΠΈ ΠΎΠ±Π»ΡΡΠ΅Π½ΠΈΠΈ Π΄Π²ΡΠΎΠΊΠΈΡΠΈ ΡΠΈΡΠ°Π½Π° (TiOβ) ΠΈΠΎΠ½Π°ΠΌΠΈ Π³Π΅Π»ΠΈΡ Ρ ΡΠ½Π΅ΡΠ³ΠΈΡΠΌΠΈ 0,12 ΠΈ 4 ΠΡΠ. ΠΡΠΈΠ²Π΅Π΄Π΅Π½Ρ ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΡΠ΅ Π΄Π°Π½Π½ΡΠ΅ ΡΠ»Π΅ΠΊΡΡΠΎΡΠΈΠ·ΠΈΡΠ΅ΡΠΊΠΈΡ
Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΡΠΈΠΊ TiOβ, ΠΏΠΎΠ΄ΡΠ²Π΅ΡΠΆΠ΄Π°ΡΡΠΈΠ΅ ΡΠ΅Π»Π΅ΡΠΎΠΎΠ±ΡΠ°Π·Π½ΠΎΡΡΡ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΡ ΠΊΠΎΠΌΠΏΠ»Π΅ΠΊΡΠ° Π΄Π»Ρ ΠΈΠ·ΡΡΠ΅Π½ΠΈΡ ΡΠ²ΠΎΠΉΡΡΠ² ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»ΠΎΠ², ΠΏΡΠΈΠΌΠ΅Π½ΡΠ΅ΠΌΡΡ
Π² ΡΡΠ»ΠΎΠ²ΠΈΡΡ
ΠΌΠΎΡΠ½ΡΡ
ΡΠ°Π΄ΠΈΠ°ΡΠΈΠΎΠ½Π½ΡΡ
ΠΏΠΎΠ»Π΅ΠΉ
Beam and target parameters measurement system on helium ions linear accelerator
A system for measuring beam and target parameters on helium ions linear accelerator is presented. The measurement system consists of sensors set, signal converters and computer with codes for processing experimental data.
The measurement system is designed for recording, visualizing, storing and processing data directly when samples
are irradiated with helium ions with energies of 0.12β¦4 MeV. The sample temperature, the ion beam current and its
shape, the sample tilt angle to the beam axis, the irradiation dose, the ionization, damage and helium range profiles
are measured/calculated.ΠΠ°Π²Π΅Π΄Π΅Π½ΠΎ ΠΎΠΏΠΈΡ ΡΠΈΡΡΠ΅ΠΌΠΈ Π²ΠΈΠΌΡΡΡΠ²Π°Π½Π½Ρ ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΡΠ² ΠΏΡΡΠΊΠ° Ρ ΠΌΡΡΠ΅Π½Ρ Π½Π° Π»ΡΠ½ΡΠΉΠ½ΠΎΠΌΡ ΠΏΡΠΈΡΠΊΠΎΡΡΠ²Π°ΡΡ ΡΠΎΠ½ΡΠ² Π³Π΅Π»ΡΡ.
Π‘ΠΈΡΡΠ΅ΠΌΠ° Π²ΠΈΠΌΡΡΡΠ²Π°Π½Ρ ΡΠΊΠ»Π°Π΄Π°ΡΡΡΡΡ Π· Π½Π°Π±ΠΎΡΡ Π΄Π°ΡΡΠΈΠΊΡΠ², ΠΊΠΎΠ½Π²Π΅ΡΡΠ΅ΡΡΠ² ΡΠΈΠ³Π½Π°Π»ΡΠ² Ρ ΠΠΠ Π· ΠΏΡΠΎΠ³ΡΠ°ΠΌΠΎΡ ΠΎΠ±ΡΠΎΠ±ΠΊΠΈ Π΅ΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΠΈΡ
Π΄Π°Π½ΠΈΡ
. Π‘ΠΈΡΡΠ΅ΠΌΠ° Π²ΠΈΠΌΡΡΡΠ²Π°Π½Ρ ΠΏΡΠΈΠ·Π½Π°ΡΠ΅Π½Π° Π΄Π»Ρ ΡΠ΅ΡΡΡΡΠ°ΡΡΡ, Π²ΡΠ·ΡΠ°Π»ΡΠ·Π°ΡΡΡ, Π·Π±Π΅ΡΠ΅ΠΆΠ΅Π½Π½Ρ Ρ ΠΎΠ±ΡΠΎΠ±ΠΊΠΈ
Π΄Π°Π½ΠΈΡ
Π±Π΅Π·ΠΏΠΎΡΠ΅ΡΠ΅Π΄Π½ΡΠΎ ΠΏΡΠΈ ΠΎΠΏΡΠΎΠΌΡΠ½Π΅Π½Π½Ρ Π·ΡΠ°Π·ΠΊΡΠ² ΡΠΎΠ½Π°ΠΌΠΈ Π³Π΅Π»ΡΡ Π· Π΅Π½Π΅ΡΠ³ΡΡΠΌΠΈ 0,12β¦4 ΠΠ΅Π. ΠΠΈΠΌΡΡΡΡΡΡΡΡ/ΠΎΠ±ΡΠΈΡΠ»ΡΡΡΡΡΡ: ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΠ° Π·ΡΠ°Π·ΠΊΠ°, ΡΡΡΡΠΌ Ρ ΡΠΎΡΠΌΠ° ΡΡΡΡΠΌΡ ΠΏΡΡΠΊΠ° ΡΠΎΠ½ΡΠ² Π½Π° Π·ΡΠ°Π·ΠΊΡ, ΠΊΡΡ Π½Π°Ρ
ΠΈΠ»Ρ Π·ΡΠ°Π·ΠΊΠ° Π΄ΠΎ ΠΎΡΡ
ΠΏΡΡΠΊΠ°, Π΄ΠΎΠ·Π° ΠΎΠΏΡΠΎΠΌΡΠ½Π΅Π½Π½Ρ, ΠΏΡΠΎΡΡΠ»Ρ ΡΠΎΠ½ΡΠ·Π°ΡΡΡ, ΠΏΠΎΡΠΊΠΎΠ΄ΠΆΡΠ²Π°Π½ΠΎΡΡΡ Ρ Π·Π°Π»ΡΠ³Π°Π½Π½Ρ Π³Π΅Π»ΡΡ Π² Π·ΡΠ°Π·ΠΊΡ.ΠΡΠΈΠ²Π΅Π΄Π΅Π½ΠΎ ΠΎΠΏΠΈΡΠ°Π½ΠΈΠ΅ ΡΠΈΡΡΠ΅ΠΌΡ ΠΈΠ·ΠΌΠ΅ΡΠ΅Π½ΠΈΡ ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠΎΠ² ΠΏΡΡΠΊΠ° ΠΈ ΠΌΠΈΡΠ΅Π½ΠΈ Π½Π° Π»ΠΈΠ½Π΅ΠΉΠ½ΠΎΠΌ ΡΡΠΊΠΎΡΠΈΡΠ΅Π»Π΅ ΠΈΠΎΠ½ΠΎΠ² Π³Π΅Π»ΠΈΡ. Π‘ΠΈΡΡΠ΅ΠΌΠ° ΠΈΠ·ΠΌΠ΅ΡΠ΅Π½ΠΈΠΉ ΡΠΎΡΡΠΎΠΈΡ ΠΈΠ· Π½Π°Π±ΠΎΡΠ° Π΄Π°ΡΡΠΈΠΊΠΎΠ², ΠΊΠΎΠ½Π²Π΅ΡΡΠ΅ΡΠΎΠ² ΡΠΈΠ³Π½Π°Π»ΠΎΠ² ΠΈ ΠΠΠ Ρ ΠΏΡΠΎΠ³ΡΠ°ΠΌΠΌΠΎΠΉ ΠΎΠ±ΡΠ°Π±ΠΎΡΠΊΠΈ
ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΡΡ
Π΄Π°Π½Π½ΡΡ
. Π‘ΠΈΡΡΠ΅ΠΌΠ° ΠΈΠ·ΠΌΠ΅ΡΠ΅Π½ΠΈΠΉ ΠΏΡΠ΅Π΄Π½Π°Π·Π½Π°ΡΠ΅Π½Π° Π΄Π»Ρ ΡΠ΅Π³ΠΈΡΡΡΠ°ΡΠΈΠΈ, Π²ΠΈΠ·ΡΠ°Π»ΠΈΠ·Π°ΡΠΈΠΈ, ΡΠΎΡ
ΡΠ°Π½Π΅Π½ΠΈΡ
ΠΈ ΠΎΠ±ΡΠ°Π±ΠΎΡΠΊΠΈ Π΄Π°Π½Π½ΡΡ
Π½Π΅ΠΏΠΎΡΡΠ΅Π΄ΡΡΠ²Π΅Π½Π½ΠΎ ΠΏΡΠΈ ΠΎΠ±Π»ΡΡΠ΅Π½ΠΈΠΈ ΠΎΠ±ΡΠ°Π·ΡΠΎΠ² ΠΈΠΎΠ½Π°ΠΌΠΈ Π³Π΅Π»ΠΈΡ Ρ ΡΠ½Π΅ΡΠ³ΠΈΡΠΌΠΈ 0,12β¦4 ΠΡΠ. ΠΠ·ΠΌΠ΅ΡΡΡΡΡΡ/Π²ΡΡΠΈΡΠ»ΡΡΡΡΡ: ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΠ° ΠΎΠ±ΡΠ°Π·ΡΠ°, ΡΠΎΠΊ ΠΈ ΡΠΎΡΠΌΠ° ΡΠΎΠΊΠ° ΠΏΡΡΠΊΠ° ΠΈΠΎΠ½ΠΎΠ² Π½Π° ΠΎΠ±ΡΠ°Π·ΡΠ΅, ΡΠ³ΠΎΠ» Π½Π°ΠΊΠ»ΠΎΠ½Π° ΠΎΠ±ΡΠ°Π·ΡΠ° ΠΊ ΠΎΡΠΈ ΠΏΡΡΠΊΠ°, Π΄ΠΎΠ·Π° ΠΎΠ±Π»ΡΡΠ΅Π½ΠΈΡ, ΠΏΡΠΎΡΠΈΠ»ΠΈ ΠΈΠΎΠ½ΠΈΠ·Π°ΡΠΈΠΈ, ΠΏΠΎΠ²ΡΠ΅ΠΆΠ΄Π°Π΅ΠΌΠΎΡΡΠΈ ΠΈ Π·Π°Π»Π΅Π³Π°Π½ΠΈΡ Π³Π΅Π»ΠΈΡ Π² ΠΎΠ±ΡΠ°Π·ΡΠ΅
Reminder effects: the molecular cascade following a reminder in young chicks does not recapitulate that following training on a passive avoidance task
Memory traces, once established, are no longer sensitive to disruption by metabolic inhibitors. However, memories reactivated by reminder are once again vulnerable, in a time-dependent manner, to amnestic treatment. To determine whether the metabolic events following a reminder recapitulate those following initial training we examined the temporal dynamics of amnesia induced by the protein synthesis inhibitor anisomycin and the glycosylation inhibitor 2-deoxygalactose. The effects of both were transient and dependent on time of reminder post-training and time of injection relative to reminder, and differed from those following initial training. 2-[C-14]-deoxyglucose uptake increased in two brain regions, the intermediate medial hyperstriatum ventrale (IMHV) and lobus parolfactorius (LPO) following reminder as it did following training, but the increase was bilateral rather than confined to the left hemisphere and was more marked in LPO than IMHV. C-fos expression after reminder was increased only in the LPO, the chick brain region associated with a late phase of memory processing and recall. Thus although, like initial consolidation, memory processing after reminder is sensitive to inhibitors of protein synthesis and glycosylation, the temporal and pharmacological dynamics indicate differences between these two processes
The theory of functional systems: General postulates and principles of dynamic organization
Chemical plasticity of visual cortical neurons in integrative organization of feeding behavior in cats
Air-guided photonic-crystal-fiber pulse-compression delivery of multimegawatt femtosecond laser output for nonlinear-optical imaging and neurosurgery
Large-core hollow photonic-crystal fibers (PCFs) are shown to enable a fiber-format air-guided delivery of ultrashort infrared laser pulses for neurosurgery and nonlinear-optical imaging. With an appropriate dispersion precompensation, an anomalously dispersive 15-m-core hollow PCF compresses 510-fs, 1070-nm light pulses to a pulse width of about 110 fs, providing a peak power in excess of 5 MW. The compressed PCF output is employed to induce a local photodisruption of corpus callosum tissues in mouse brain and is used to generate the third harmonic in brain tissues, which is captured by the PCF and delivered to a detector through the PCF cladding. Β© 2012 American Institute of Physics