Abstract
The results of time-of-flight diagnostics of the composition of high-intensity pulsed ion beams are presented. The experiments were performed on a diode of focusing and flat geometry, in the mode of self-magnetic insulation of electrons (accelerating voltage 250-300 kV, pulse duration 120 ns, ion current density 20-300 A/cm2), and a focusing diode in an external magnetic insulation mode (300 kV, 80 ns, 100-200 A/cm2). A delay in the registration of protons by 40-50 ns (on the drift path 14-16 cm) was found in the absence of a delay in the registration of heavy ions. It has been shown that this delay can be related to the deceleration of light ions during the transport from the diode to a collimated Faraday cup. This effect of spatial compression of the ion beam in the direction of the drift increases its pulse power but complicates the time-of-flight diagnostics of its composition.
| Original language | English |
|---|---|
| Article number | 103303 |
| Journal | Review of Scientific Instruments |
| Volume | 90 |
| Issue number | 10 |
| DOIs | |
| Publication status | Published - 1 Oct 2019 |
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ASJC Scopus subject areas
- Instrumentation
Cite this
Influence of the space charge of an ion beam on the time-of-flight diagnostics of its composition. / Pushkarev, A.; Zhu, X. P.; Zhang, C. C.; Prima, A.; Li, Y.; Egorova, Yu; Lei, M. K.
In: Review of Scientific Instruments, Vol. 90, No. 10, 103303, 01.10.2019.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Influence of the space charge of an ion beam on the time-of-flight diagnostics of its composition
AU - Pushkarev, A.
AU - Zhu, X. P.
AU - Zhang, C. C.
AU - Prima, A.
AU - Li, Y.
AU - Egorova, Yu
AU - Lei, M. K.
PY - 2019/10/1
Y1 - 2019/10/1
N2 - The results of time-of-flight diagnostics of the composition of high-intensity pulsed ion beams are presented. The experiments were performed on a diode of focusing and flat geometry, in the mode of self-magnetic insulation of electrons (accelerating voltage 250-300 kV, pulse duration 120 ns, ion current density 20-300 A/cm2), and a focusing diode in an external magnetic insulation mode (300 kV, 80 ns, 100-200 A/cm2). A delay in the registration of protons by 40-50 ns (on the drift path 14-16 cm) was found in the absence of a delay in the registration of heavy ions. It has been shown that this delay can be related to the deceleration of light ions during the transport from the diode to a collimated Faraday cup. This effect of spatial compression of the ion beam in the direction of the drift increases its pulse power but complicates the time-of-flight diagnostics of its composition.
AB - The results of time-of-flight diagnostics of the composition of high-intensity pulsed ion beams are presented. The experiments were performed on a diode of focusing and flat geometry, in the mode of self-magnetic insulation of electrons (accelerating voltage 250-300 kV, pulse duration 120 ns, ion current density 20-300 A/cm2), and a focusing diode in an external magnetic insulation mode (300 kV, 80 ns, 100-200 A/cm2). A delay in the registration of protons by 40-50 ns (on the drift path 14-16 cm) was found in the absence of a delay in the registration of heavy ions. It has been shown that this delay can be related to the deceleration of light ions during the transport from the diode to a collimated Faraday cup. This effect of spatial compression of the ion beam in the direction of the drift increases its pulse power but complicates the time-of-flight diagnostics of its composition.
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U2 - 10.1063/1.5116598
DO - 10.1063/1.5116598
M3 - Article
AN - SCOPUS:85073225289
VL - 90
JO - Review of Scientific Instruments
JF - Review of Scientific Instruments
SN - 0034-6748
IS - 10
M1 - 103303
ER -