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ASTRA-Generator  GAUSS200000_Q1P0nCXYrms0P75mm4p4psi PowerPoint PPT Presentation


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TTF2-s2e. ASTRA-Generator  GAUSS200000_Q1P0nCXYrms0P75mm4p4ps.ini ASTRA  TTF2_09APR05_ACC1m 9deg _200K.1350.001 mcad: “00_astra_to_bc1_in”  before_bc1_ 9deg .fmt1 CSRtrack  end_10000.fmt3 mcad: “05_fmt3_to_astra”  x_ 9deg .ini

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ASTRA-Generator  GAUSS200000_Q1P0nCXYrms0P75mm4p4psi

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Astra generator gauss200000 q1p0ncxyrms0p75mm4p4psi

TTF2-s2e

ASTRA-Generator  GAUSS200000_Q1P0nCXYrms0P75mm4p4ps.ini

ASTRA TTF2_09APR05_ACC1m9deg_200K.1350.001

mcad: “00_astra_to_bc1_in”  before_bc1_9deg.fmt1

CSRtrack end_10000.fmt3

mcad: “05_fmt3_to_astra”  x_9deg.ini

ASTRA x_9deg.out

mcad: “06_astra_to_bc2_in”  before_bc2_9deg.fmt1

CSRtrack end_10000.fmt3

mcad: “07_fmt3_to_astra”  y_9deg.ini

ASTRA y_9deg.out

mcad: add wakes

GENESIS

3 particle formats

(serial) ASTRA runs ~ 0.5 d + 0.5d +0.75d

(1d) CSRtrack ~ 1h + 2h


Astra generator gauss200000 q1p0ncxyrms0p75mm4p4psi

ASTRA

differences between serial- and MPI-version  use serial version

convergence tests missing; so far: Nrad=10, Nlong_in=15 for GUN & ACC1

Nrad=30, Nlong_in=300 for the rest

CSRtrack

1d-method: 1-ASTRA particle  1-CSRtrack particle

new filter technique: position averaging + sub-bunch (as before)


Astra generator gauss200000 q1p0ncxyrms0p75mm4p4psi

z

z

1d filtering in CSRtrack

distribution of equi-charged particles:

M-particle position averaging:

& convolution with Gaussian sub-bunch with rms-length = 


Astra generator gauss200000 q1p0ncxyrms0p75mm4p4psi

200000 particles


Astra generator gauss200000 q1p0ncxyrms0p75mm4p4psi

M = 10000

 = 1 µm


Astra generator gauss200000 q1p0ncxyrms0p75mm4p4psi

BC2

BC3

10

5

3

1

sub-bunch length


Astra generator gauss200000 q1p0ncxyrms0p75mm4p4psi

after BCs: centroid extraction

proposed by E. Schneidmiller

offset of slice with

peak current

ASTRA: monopole

charge density

SC effects underestimated

to avoid that:

shift centroids to center


Astra generator gauss200000 q1p0ncxyrms0p75mm4p4psi

phase scan

ASTRA-Generator 1nC, 200000 particles, phase independent

ASTRA ~ 127 MeVrf/deg = 6 7 8 9 10 11 12 13 14 15

mcad: “00_astra_to_bc1_in” * * * * * * * * * *

CSRtrack, r56=181mm* * * * * * * * * *

mcad: “05_fmt3_to_astra” * * * * * * * * * *

ASTRA ~ 380 MeV* * * * * * * * * *

mcad: “06_astra_to_bc2_in” * * * * * * * * * *

CSRtrack, r56=41mm* * * * * * * * * *

mcad: “07_fmt3_to_astra” * * * * * * * * * *

ASTRA ~ 450 MeV* r * * * * * * * r


Astra generator gauss200000 q1p0ncxyrms0p75mm4p4psi

more: s2e_TTF2_06oc05_B.pdf


Astra generator gauss200000 q1p0ncxyrms0p75mm4p4psi

9 deg case:

9 deg, before 1st BC


Astra generator gauss200000 q1p0ncxyrms0p75mm4p4psi

9 deg, after 1st BC


Astra generator gauss200000 q1p0ncxyrms0p75mm4p4psi

9 deg, before last BC


Astra generator gauss200000 q1p0ncxyrms0p75mm4p4psi

9 deg, after last BC


Astra generator gauss200000 q1p0ncxyrms0p75mm4p4psi

9 deg, @ 155m


Astra generator gauss200000 q1p0ncxyrms0p75mm4p4psi

9 deg, after last BC

9 deg, @ 155m

?


Astra generator gauss200000 q1p0ncxyrms0p75mm4p4psi

9 deg, @ 155m, x’ vs. z


Astra generator gauss200000 q1p0ncxyrms0p75mm4p4psi

& LOLA


Astra generator gauss200000 q1p0ncxyrms0p75mm4p4psi

12 deg, @ 155m, x’ vs. z


Astra generator gauss200000 q1p0ncxyrms0p75mm4p4psi

phase scan

ASTRA-Generator 1nC, 200000 particles, phase independent

ASTRA ~ 127 MeVrf/deg = 6 7 8 9 10 11 12 13 14 15

mcad: “00_astra_to_bc1_in” * * * * * * * * * *

CSRtrack, r56=181mm* * * * * * * * * *

mcad: “05_fmt3_to_astra” * * * * * * * * * *

ASTRA ~ 380 MeV* * * * * * * * * *

mcad: “06_astra_to_bc2_in” * * * * * * * * * *

CSRtrack, r56=80mm* * * * * * *

mcad: “07_fmt3_to_astra”

ASTRA ~ 450 MeV


Astra generator gauss200000 q1p0ncxyrms0p75mm4p4psi

more: s2e_TTF2_06oc05_C.pdf


Astra generator gauss200000 q1p0ncxyrms0p75mm4p4psi

to do & next

convergence tests: ASTRA mesh

particle number & filtering parameters

check MPI-ASTRA

automatisation of the procedure

(replace mcad sheets by fortran- or C-program)

“3D” CSRtrack calculation


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