Time-resolved γ-spectrometer to promptly control number and energy of protons collectively accelerated as different bunches

被引：7

作者：

Ryzhkov, V. A. ^{[1
]}

Pyatkov, I. N. ^{[1
]}

Remnev, G. E. ^{[1
]}

机构：

[1] Tomsk Polytech Univ, Sch Adv Mfg Technol, Tomsk 634050, Russia

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2021年 / 998卷

关键词：

Pulsed beam diagnostics; Selective gamma-ray absorption; Organic scintillator; LASER; DIAGNOSTICS;

D O I：

10.1016/j.nima.2021.165190

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A two-channel y-spectrometer with time resolution of 2.5 ns enables a prompt control of number and energy of collectively accelerated protons in their separate bunches dumped into a sustainable and refractory B4C target. The proton energy and number is determined within the range of 460 to 1600 keV and 10(12)-4.10(14) per pulse, respectively, by separate measurements of yields of prompt gamma-rays with energies of 429 and 2366 keV and higher, induced in the B4C targets via the nuclear reactions B-10(p, alpha gamma)Be-7, B-11(p, gamma)C-12 and C-12(p, gamma)N-13, respectively. The simultaneous control of signals from two organic scintillators shielded with lead layers of 1 and 7 cm is used to reliably separate contributions of the analytical reactions. The radioactivity of Be-7 and N-13 radionuclides produced in the reactions is measured with a conventional HP Ge detector to calibrate the prompt technique.

引用

页数：6

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