Sustainable neutrons for today and tomorrow—The Jülich High Brilliance neutron Source project

Figures & data

Figure 1. HBS baseline design with the Linac to the left, a beam multiplexer in the center serving three individual target stations at three experimental areas.

Figure 2. Neutron yield for various target materials [5].

Table 1. Accelerator parameters used in the HBS Project.

Accelerator	Linac
Particle type	Proton
Beam energy	70 MeV
Current	100 mA
Frequencies	24, 96, 384 Hz
Duty cycle	∼ 4.3 %
Peak beam power	7 MW
Average beam power	∼3·100 kW

Figure 3. HBS tantalum target with fin-like μ-channel structure.

Figure 4. HBS target/moderator/shielding assembly.

Figure 5. Prototype design and realization of the cold finger moderator with o/p H₂ mixing cryostat.

Figure 6. Possible positioning of up to six extraction channels within the thermal moderator close to the target. Here an arrangement with the proton beam hitting the target from aside is shown.

Table 2. Analytically calculated instrument parameters for HBS

	Resolution [Å^−1]	Bandwidth [Å]	Flux [s^−1 cm^−2]
Large scale structures operating at 24 Hz
Reflectometer	0.2	1.2–5.7	1.3 · 10^8
SANS	0.31	3–8.4	2.4 · 10^7
	0.27	3–7.7	5.3 · 10^6
	0.23	3–7	1.5 · 10^6
	0.2	3–6.4	6 · 10^5
Diffractometers operating at 96 Hz
Powder	0.0032	1.3–2.6	6 · 10^6
Spectrometers operating at 96 or 384 Hz
Backscattering	1	1.84	2.5 · 10^7
Cold ToF	3	5	1.3 · 10^5
Thermal ToF	5	4.5	1 · 10^5
Analytics operating at 24 or 96 Hz
Imaging	1	1.84	2.5 · 10^7
PDGNAA, NDP	—	—	10^5

P. Zakalek, P.-E. Doege, J. Baggemann, E. Mauerhofer, and T. Brückel, EPJ Web Conf., 231, 03006 (2020).

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