HYSPEC
HYSPEC is a direct-geometry, hybrid spectrometer at the Oak Ridge National Laboratory. [1]
References
Versions
HYSPEC (default)
HYSPEC
For details on the parameters associated with the HYSPEC version, please see the HYSPEC data.
Models
PyChop_fit (default)
PyChop_fit
This is the recommended PyChop_fit model - it is an alias for the PyChop_fit_v1 model, which is the model actually containing the data.
Important
PyChop_fit refers to the best version of this model - using a specific version may run the risk using a model with known bugs or other issues and is not advisable unless replicating the results of a given version of the model.
PyChop_fit_v1
This section contains the data for the HYSPEC instrument associated with the PyChop_fit_v1 model. For more information about how the model works and its implementation, please see resins.models.pychop.PyChopModelFermi. For more information on the model parameters, please see PyChop_fit_v1 model data.
Configurations:
-
OnlyOne (default)
Data
name: "HYSPEC"
default_version: "HYSPEC"
version:
HYSPEC:
default_model: "PyChop_fit"
models:
PyChop_fit: "PyChop_fit_v1"
PyChop_fit_v1:
function: "pychop_fit_fermi"
citation: ['R. I. Bewley, R. A. Ewings, M. D. Le, T. G. Perring and D. J. Voneshen, 2018. PyChop', 'https://mantidproject.github.io/docs-versioned/v6.10.0/interfaces/direct/PyChop.html']
parameters:
d_chopper_sample: 3.61
d_sample_detector: 4.5
aperture_width: 0.0
theta: 32.0
defaults:
e_init: 30
chopper_frequency: 180
restrictions:
e_init: [3.6, 61.0]
chopper_frequency: [60, 421, 60]
frequency_matrix: [[0], [0], [1]]
moderator:
type: 3
scaling_function: None
measured_wavelength: [28.60141458, 26.65479018, 24.84065387, 23.14998844, 21.57439041, 20.10602826, 18.73760346, 17.46231422, 16.27382172, 15.16621852, 14.13399926, 13.17203328, 12.27553911, 11.44006072, 10.66144534, 9.93582285, 9.25958654, 8.62937515, 8.04205622, 7.49471047, 6.9846173, 6.50924128, 6.06621956, 5.65335009, 5.26858069, 4.90999885, 4.57582225, 4.26438985, 3.97415367, 3.70367109, 3.45159766, 3.21668046, 2.99775183, 2.79372357, 2.60358156, 2.42638069, 2.2612402, 2.10733923, 1.96391283, 1.83024809, 1.70568063, 1.58959128, 1.48140303, 1.38057811, 1.28661538, 1.19904779, 1.11744009, 1.04138664, 0.97050943, 0.90445614]
measured_width: [349.37, 354.02, 358.23, 361.74, 364.36, 365.84, 366.0, 364.71, 361.86, 357.47, 351.6, 344.4, 336.06, 326.81, 316.87, 306.49, 295.86, 285.14, 274.45, 263.89, 253.48, 243.24, 233.12, 223.05, 212.97, 202.77, 192.43, 181.89, 171.24, 160.57, 150.08, 139.97, 130.4, 121.38, 112.68, 103.81, 94.24, 83.71, 72.47, 61.31, 51.03, 42.13, 34.74, 28.75, 23.98, 20.19, 17.17, 14.77, 12.85, 11.29]
parameters: [0.0]
detector:
type: 2
phi: 60.0
depth: 0.025
sample:
type: 2
thickness: 0.01
width: 0.01
height: 0.03
gamma: 0.0
choppers:
T1A:
distance: 9.4
nslot: 1
slot_width: 94.7
slot_ang_pos: None
guide_width: 40
radius: 250
num_disk: 1
is_phase_independent: False
default_phase: 0
T1B:
distance: 36.46
nslot: 1
slot_width: 94.7
slot_ang_pos: None
guide_width: 40
radius: 250
num_disk: 1
is_phase_independent: False
default_phase: 0
Fermi:
distance: 37.17
aperture_distance: 37.0
configurations:
chopper_package:
default_option: "OnlyOne"
OnlyOne:
pslit: 0.0006
radius: 0.005
rho: 1000.0
tjit: 0.0